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You searched for: Journal name Chemistry of natural compounds Remove constraint Journal name: Chemistry of natural compounds Publication Year 2017 Remove constraint Publication Year: 2017
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1. Adhesive Properties of Pectin–Chitosan Composite Gels

Author:
E. A. Gyunter; A. K. Melekhin; S. V. Popov; E. A. Durnev; E. A. Martinson; S. G. Litvinets; M. A. Konovalova; V. P. Varlamov
Source:
Chemistry of natural compounds 2017 v.53 no.5 pp. 823-829
ISSN:
0009-3130
Subject:
Escherichia coli; Lemna minor; Silene vulgaris; Tanacetum vulgare; adhesion; chitosan; gels; molecular weight; pectins; scanning electron microscopy
Abstract:
... Differences in the size, shape, and surface relief of composite gel particles prepared using pectins from Silene vulgaris (SVCI), Tanacetum vulgare (TVB), and Lemna minor (LML) and chitosan were found using scanning electron microscopy. The adhesive properties of the composite gels depended on the pectin structural features, molecular mass (Mw) and degree of deacetylation (DD) of the chitosan incl ...
DOI:
10.1007/s10600-017-2133-x

2. The Alkaloidal Constituents of Cephalotaxus mannii Collected in Lam Dong Province, Vietnam

Author:
Tran Van Loc; Nguyen Thi Lieu; Tran Thi Phuong Thao; Nguyen Thi Luu; Ho Ngoc Anh; Le Thi Thu Ha; Tran Van Chien; Pham Thi Ninh; Dinh Thi Phong; Tran Van Sung
Source:
Chemistry of natural compounds 2017 v.53 no.6 pp. 1122-1126
ISSN:
0009-3130
Subject:
Cephalotaxus; Fourier transform infrared spectroscopy; alkaloids; electrospray ionization mass spectrometry; isomers; nuclear magnetic resonance spectroscopy; Vietnam
Abstract:
... Eight alkaloidal constituents have been isolated and structurally elucidated from Cephalotaxus mannii Hook. f. collected from the highland Lam Dong Province, Vietnam. They are: cephalotaxine (1), isoharringtonine (2), norisoharringtonine (3), desoxyharringtonine (4), nordesoxyharringtonine (5), cephalotaxine 𝛽 -N-oxide (6), 3-epi-schellhammericine (7), and an isomer of 3-epi-schellhammericine (8) ...
DOI:
10.1007/s10600-017-2214-x

3. Amino Acids and Related Compounds of the Ascidian Halocynthia aurantium from the Sea of Japan

Author:
O. V. Tabakaeva; A. V. Tabakaev
Source:
Chemistry of natural compounds 2017 v.53 no.4 pp. 722-725
ISSN:
0009-3130
Subject:
Halocynthia aurantium; aspartic acid; chemical composition; essential amino acids; nitrogen compounds; taurine; Sea of Japan
Abstract:
... The overall chemical composition and contents of free (FAA) and bound amino acids and related compounds from various parts of the ascidian Halocynthia aurantium from the Sea of Japan were studied. The amounts of FAA and related nitrogenous compounds were rather high in all parts. The 42 total compounds were dominated by taurine, the absolute content of which was especially high in tunic, exceeding ...
DOI:
10.1007/s10600-017-2099-8

4. Anthraquinones from the Barks of Cassia alata and their Anti-Tobacco Mosaic Virus Activity

Author:
Hang-Ying Ma; Li-Xuang Liu; Guo-Rong Yang; Qiang Liu; Yan Yang; Ling Zhou; Huan-huan Xing; Min Zhou; Yan-Qing Ye; Hai-Yan Wu; Gang Du; Xue-Mei Li; Qiu-Fen Hu
Source:
Chemistry of natural compounds 2017 v.53 no.5 pp. 852-855
ISSN:
0009-3130
Subject:
Senna alata; Tobacco mosaic virus; anthraquinones; antiviral properties; nuclear magnetic resonance spectroscopy; spectral analysis; viruses
Abstract:
... Two new anthraquinones, alataquinones A and B (1 and 2), together with two known anthraquinones (3 and 4), were isolated from the barks of Cassia alata. Their structures were determined by means of HR-ESI-MS and extensive 1D and 2D NMR spectroscopic studies. Compounds 1–4 were tested for their anti-tobacco mosaic virus (anti-TMV) activity. The results showed that compounds 1–4 exhibited moderate a ...
DOI:
10.1007/s10600-017-2139-4

5. Anti-Tobacco Mosaic Virus Chromones from the Twigs of Cassia fistula

Author:
Qiu-Fen Hu; Ye-De Wang; Zhen-Hua Yu; Kun Zhou; Wei Dong; Min Zhou; Yin-Ke Li; Xue-Mei Gao; Dong-Lai Zhu; Yan-Qing Ye
Source:
Chemistry of natural compounds 2017 v.53 no.3 pp. 453-456
ISSN:
0009-3130
Subject:
Cassia fistula; antiviral properties; branches; chemistry; nuclear magnetic resonance spectroscopy; spectral analysis; viruses
Abstract:
... Two new chromones, fistulachromones A and B (1 and 2), together with three known chromones (3–5), were isolated from the twigs of Cassia fistula. Their structures were determined by means of HR-ESI-MS and extensive 1D and 2D NMR spectroscopic studies. Compounds 1 and 2 were tested for their anti-tobacco mosaic virus (anti-TMV) activities. Compounds 1 and 2 showed high anti-TMV activities with inhi ...
DOI:
10.1007/s10600-017-2021-4

6. Antibacterial and Antioxidant Activities of Megastigmane Glycosides from Hosta plantaginea

Author:
Xiao-hua Bao; Qing-hu Wang; Bai-yinmu-qi-er Bao; Jing-jing Han; Wu-li-ji Ao
Source:
Chemistry of natural compounds 2017 v.53 no.4 pp. 614-617
ISSN:
0009-3130
Subject:
2,2-diphenyl-1-picrylhydrazyl; Hosta; antioxidant activity; bacteria; flowers; glycosides; nuclear magnetic resonance spectroscopy; spectral analysis
Abstract:
... A new megastigmane glycoside, together with two known compounds, has been isolated from the flowers of Hosta plantaginea. The structure elucidation of the new compound was carried out by 1D (¹H and ¹³C NMR) and 2D NMR (COSY, HSQC, HMBC, and NOESY) spectral analysis. The antibacterial and antioxidant activities of the three compounds were evaluated against various bacteria, and their radical scaven ...
DOI:
10.1007/s10600-017-2071-7

7. Antitumor Activities of Six Quassinoids from Ailanthus altissima

Author:
Ru-Xing Wang; Xiao-Xia Mao; Jian Zhou; Man-li Zhang; Yi-Bing Wu; Chang-Hong Huo; Qing-Wen Shi; Francoise Sauriol; Yu-Cheng Gu
Source:
Chemistry of natural compounds 2017 v.53 no.1 pp. 28-32
ISSN:
0009-3130
Subject:
Ailanthus altissima; antineoplastic activity; bark; chemistry; spectroscopy
Abstract:
... Six known quassinoids were isolated from the bark of Ailanthus altissima. Their structures were elucidated by spectroscopic methods. Compounds 1–6 were screened for their antitumor activities evaluated by MTT assay. ...
DOI:
10.1007/s10600-017-1903-9

8. Axinellin A and B: Two New Pyrrolactam Alkaloids from Axinella sp.

Author:
Wei-Guo Xu; Jiao-Jiao Xu; Jia Wang; Guo-Sheng Xing; Wei Qiao; Hong-Quan Duan; Chuan Zhao; Sheng-An Tang
Source:
Chemistry of natural compounds 2017 v.53 no.2 pp. 325-327
ISSN:
0009-3130
Subject:
Porifera; alkaloids; chemistry; nuclear magnetic resonance spectroscopy
Abstract:
... Two new pyrrolactam alkaloids, axinelline A (1) and B (2), were isolated from the n-BuOH extract of marine sponge Axinella sp. The structures of these compounds were elucidated on the basis of spectroscopic methods (HR-ESI-MS, 1D and 2D NMR). ...
DOI:
10.1007/s10600-017-1980-9

9. Biological Activity of S-Containing Monoterpenoids

Author:
L. E. Nikitina; N. P. Artemova; V. A. Startseva; I. V. Fedyunina; V. V. Klochkov
Source:
Chemistry of natural compounds 2017 v.53 no.5 pp. 811-819
ISSN:
0009-3130
Subject:
antimalarials; medicinal properties; monoterpenoids; structure-activity relationships
Abstract:
... S-containing mono- and bicyclic monoterpenoids were reviewed with respect to antifungal, anti-inflammatory, anti-helicobacter, anticlotting, membrane-protective, antitumor, antimicrobial, antibacterial, antiparasitic, and antimalarial activity including establishment of structure–activity relationships. ...
DOI:
10.1007/s10600-017-2131-z

10. Biotransformation of Ginsenosides Re and Rg1 into Rg2 and Rh1 by Thermostable β-Glucosidase from Thermotoga thermarum

Author:
Jianjun Pei; Tao Wu; Tao Yao; Linguo Zhao; Gang Ding; Zhenzhong Wang; Wei Xiao
Source:
Chemistry of natural compounds 2017 v.53 no.3 pp. 472-477
ISSN:
0009-3130
Subject:
Thermotoga thermarum; beta-glucosidase; biotransformation; ginsenosides; medicinal properties; pH; temperature; thermal stability
Abstract:
... The recombinant thermostable β-glucosidase from Thermotoga thermarum DSM 5069ᵀ exhibited high selectivity to catalyze the conversion of ginsenoside Re and Rg₁ to the more pharmacologically active minor ginsenoside Rg₂ and Rh₁, respectively. At a concentration of 1.36 U/mL of the enzyme, a temperature of 85°C, and pH 5.5, 10 g/L ginsenoside Re was transformed into 8.02 g/L Rg₂ within 60 min, and 2 ...
DOI:
10.1007/s10600-017-2025-0

11. Brown Alga Metabolites – Inhibitors of Marine Organism Fucoidan Hydrolases

Author:
A. S. Silchenko; T. I. Imbs; T. N. Zvyagintseva; S. A. Fedoreyev; S. P. Ermakova
Source:
Chemistry of natural compounds 2017 v.53 no.2 pp. 345-350
ISSN:
0009-3130
Subject:
Fucus evanescens; Littorina; Mizuhopecten yessoensis; algae; alpha-L-fucosidase; bacteria; beta-glucosidase; chemistry; ethanol; fucoidan; metabolism; metabolites; molluscs
Abstract:
... Fucoidan hydrolase inhibitors were discovered for the first time. Metabolites in the aqueous EtOH extract of Fucus evanescens inhibited specifically the activity of enzymes involved in catabolism of brown-alga polysaccharides, i.e., fucoidanases (recombinant FFA from the marine bacterium Formosa algae KMM 3553T and PPF from the marine mollusk Patinopecten yessoensis) and glycosidases (recombinant ...
DOI:
10.1007/s10600-017-1985-4

12. Chemical Constituents Isolated from Zanthoxylum armatum Stem Bark

Author:
S. Agnihotri; S. Wakode; M. Ali
Source:
Chemistry of natural compounds 2017 v.53 no.5 pp. 880-882
ISSN:
0009-3130
Subject:
Zanthoxylum armatum; acetates; bark; chemical composition; chemical constituents of plants; chromatography; glycosides; spectroscopy
Abstract:
... Phytochemical investigation of the stem bark of Zanthoxylum armatum led to the isolation of three phytoconstituents characterized as 1-linoleo-2,3-diolein (1), α-amyrin acetate (2), and armatonaphthyl arabinoside (3), which were elucidated using spectroscopic and chromatographic analysis. Among the isolated compounds, armatonaphthyl arabinoside (3) is a new naphthyl glycoside. ...
DOI:
10.1007/s10600-017-2146-5

13. Chemical Constituents of Cleome rupicola Growing in Saudi Arabia

Author:
Adnan J. Al-Rehaily; Mohammad S. Ahmad; Muhammad Yousaf; Sarfaraz Ahmed; Mohammad Nur-e-Alam; Mohammed S. Al-Dosari; Mohammad K. Parvez
Source:
Chemistry of natural compounds 2017 v.53 no.4 pp. 670-673
ISSN:
0009-3130
Subject:
Cleome; aerial parts; chemical composition; cytotoxicity; flavonols; glycosides; inhibitory concentration 50; nuclear magnetic resonance spectroscopy; secondary metabolites; spectral analysis; triterpenoids; Saudi Arabia
Abstract:
... Phytochemical investigations of extracts from the aerial parts of Cleome rupicola resulted in the isolation of two new and three known secondary metabolites corresponding to three secodammarane triterpenes: cleomdiolic acid (1), shoreic acid (3), foveolins B (4), and two flavonol glycosides: isorhamnetin-3,7-O-α-L-dirhamnoside-3′′-O-acetyl (2) and isorhamnetin-3-β-D-glucoside-7-α-L-rhamnoside (5). ...
DOI:
10.1007/s10600-017-2087-z

14. Chemical Constituents of Hypericum petiolulatum

Author:
Dan-Yun Rui; Xuan-Qin Chen; Zhen Li; Li-Yuan Tang; Fei Li
Source:
Chemistry of natural compounds 2017 v.53 no.3 pp. 457-462
ISSN:
0009-3130
Subject:
2,2-diphenyl-1-picrylhydrazyl; Hypericum; aerial parts; antioxidant activity; breast neoplasms; butylated hydroxytoluene; chemical composition; cytotoxicity; free radicals; humans; inhibitory concentration 50; methanol; neoplasm cells; nuclear magnetic resonance spectroscopy; prostatic neoplasms; spectral analysis; xanthones
Abstract:
... Chemical study on the methanol extract of aerial parts of Hypericum petiolulatum led to the isolation of one new polycyclic polyprenylated acylphloroglucinol (PPAP), dihroxuralodin (1), and one new chromone (2), together with four known PPAPs (3–6) and nine xanthones (7–15). Their structures were established on the basis of spectroscopic data, including IR, MS, 1D, and 2D NMR. All the isolated PPA ...
DOI:
10.1007/s10600-017-2022-3

15. Chemical Constituents of the Aerial Parts of Schnabelia oligophylla

Author:
Shi-Ji Xiao; Da-Le Guo; Mao-Sheng Zhang; Fang Chen; Li-Sheng Ding; Yan Zhou
Source:
Chemistry of natural compounds 2017 v.53 no.3 pp. 478-482
ISSN:
0009-3130
Subject:
aerial parts; chemical composition; chemical structure; methanol; nuclear magnetic resonance spectroscopy; spectral analysis; triterpenoids
Abstract:
... A new triterpenoid derivative, 2,3-seco-bauer-8-en-2,3-dioic acid (1), a new natural product, 3α-hydroxyolean-13(18)-en-24-oic acid (2), along with 19 known compounds (3–21), were isolated from the methanol extract of the aerial parts of Schnabelia oligophylla. The chemical structures were established by means of spectroscopic analysis including one- and two-dimensional NMR spectroscopy and compar ...
DOI:
10.1007/s10600-017-2026-z

16. Chemical Constituents of the Barks of Litsea rubescens

Author:
Jiang Hu; Xia Mao; Xiaodong Shi; Hui Li
Source:
Chemistry of natural compounds 2017 v.53 no.4 pp. 694-697
ISSN:
0009-3130
Subject:
Litsea; chemical composition; ethanol; formates; nuclear magnetic resonance spectroscopy; spectral analysis
Abstract:
... A phytochemical investigation of the ethanol extract from the barks of Litsea rubescens resulted in the isolation of three new compounds, 3α,7β-diacetyl-8β-methyloctahydro-4β-methyl formate (1), (–)-N-methoxycarbonylorientailine (3), and 9-O-[4-O-acetyl-α-L-rhamnopyranosyl-(1→6)-β-Dglucopyranosyl]-3,4-dimethoxycinnamic acid (5), together with two known compounds, 3α,7β-dihydroxy-8β-methyloctahydro ...
DOI:
10.1007/s10600-017-2093-1

17. Chemical Constituents of the Notoginseng Medicinal Fungal Substance

Author:
Wei Xu; Cai Feng Ding; Xiao Li Liu; Xin Wen Wang; Zhi Dong Qiu
Source:
Chemistry of natural compounds 2017 v.53 no.3 pp. 483-485
ISSN:
0009-3130
Subject:
chemical composition; fungi; nuclear magnetic resonance spectroscopy
Abstract:
... A new compound, notoginsenoside ST-7 (1), and one known compound notoginsenoside ST-1 (2), were isolated from notoginseng medicinal fungal substance. The structure of the new compound was elucidated by combined analysis of the 1D and 2D NMR data, the HR-ESI-MS data, and a CD experiment with dimolybdenum tetraacetate [Mo₂(OAc)₄] complexation. ...
DOI:
10.1007/s10600-017-2027-y

18. Chemical Modification of Plant Alkaloids. 7. T-Reaction of an Aloperine Derivative

Author:
K. A. Krasnov; V. G. Kartsev; E. V. Dobrokhotova; E. K. Kultyshkina; T. V. Timofeeva; V. N. Khrustalev
Source:
Chemistry of natural compounds 2017 v.53 no.4 pp. 703-707
ISSN:
0009-3130
Subject:
alkaloids; crystal structure; piperidines
Abstract:
... N-(2-Carboxy-5-nitrophenyl)aloperine was prepared from aloperine and 2-fluoro-5-nitrobenzaldehyde and condensed with 1,3-dimethylbarbituric acid via a T-reaction with opening of the piperidine ring and formation of 1,3-dimethyl-5-{5-nitro-2-[3-(10-oxo-7-azatricyclo[7.3.1.0²,⁷]trideca-11-en-12-yl)propylamino]} benzylhexahydro-2,4,6-pyrimidinetrione. The structure of the prepared compound was studie ...
DOI:
10.1007/s10600-017-2095-z

19. Complete Assignment of NMR Data of Alterporriol I

Author:
Liu Peng; Wang Pinmei; Xu Jinzhong
Source:
Chemistry of natural compounds 2017 v.53 no.4 pp. 653-657
ISSN:
0009-3130
Subject:
Pleospora; Staphylococcus epidermidis; antibiotic resistance; culture media; fungi; methicillin; methicillin-resistant Staphylococcus aureus; nuclear magnetic resonance spectroscopy; spectral analysis; stereochemistry
Abstract:
... Pure alterporriol I, together with 13 known altersolanol-type compounds and alterporriols, was isolated from a culture broth of the marine-derived fungus Pleospora sp. The NMR data of alterporriol I were completely assigned on the basis of 1D and 2D NMR spectral analysis, and its stereochemistry was determined from the CD spectrum. Other known compounds were identified by comparison of their spect ...
DOI:
10.1007/s10600-017-2083-3

20. Compositions of Lipids and Fatty Acids from Various Parts of the Brown Alga Undaria pinnatifida

Author:
O. V. Tabakaeva; A. V. Tabakaev
Source:
Chemistry of natural compounds 2017 v.53 no.5 pp. 843-848
ISSN:
0009-3130
Subject:
Undaria pinnatifida; fatty acids; photosynthesis; pigments; thallus; triacylglycerols
Abstract:
... The contents of total and separate classes of lipids and photosynthetic pigments from various anatomical parts of the brown alga U. pinnatifida were determined. Differences were found in the contents of separate lipid constituents. The maximum amount of free lipids was found in stipe (0.012% of moist mass); of bound lipids, in sporophylls (0.98% of moist mass). Polar lipids constituted a large par ...
DOI:
10.1007/s10600-017-2137-6

21. Covalent and Ionic Conjugates of Trolox and α-Tocopherol with 1-Aminoadamantane

Author:
Yu. V. Yushkova; S. V. Morozov; E. I. Chernyak; I. A. Grigor’ev
Source:
Chemistry of natural compounds 2017 v.53 no.6 pp. 1059-1065
ISSN:
0009-3130
Subject:
alpha-tocopherol; chemical bonding; mass spectrometry; nuclear magnetic resonance spectroscopy; water solubility
Abstract:
... Covalent, ionic, and ionic-covalent conjugates of trolox and α-tocopherol with 1-aminoadamantane were synthesized. Their structures were elucidated using mass spectrometry and IR, PMR, and ¹³C NMR spectroscopy. The water solubility of the ionic trolox conjugates with 1-aminoadamantane increased by 2–24 times as compared with that of trolox whereas that of the α-tocopherol succinate conjugates rema ...
DOI:
10.1007/s10600-017-2201-2

22. Cyclotanoside, a New Cycloartane Glycoside from Flowers of Astragalus tanae

Author:
M. D. Alaniya; N. Sh. Kavtaradze; A. V. Skhirtladze; J. N. Aneli
Source:
Chemistry of natural compounds 2017 v.53 no.4 pp. 682-686
ISSN:
0009-3130
Subject:
Astragalus; chemistry; flowers; saponins; triterpenoids
Abstract:
... The new cycloartane glycoside cyclotanoside and the triterpene saponin astragaloside VIII were isolated from flowers of Astragalus tanae Sosn. Their structures were established as 9β,19-cyclolanost-12,24E-dien-1α,3β,6α,16β,27-pentaol-27-O-β-D-(6′-O-acetoxy)-galactopyranoside and 3-O-α-L-rhamnopyranosyl-(1→2)-O-β-D-xylopyranosyl-(1→2)-O-β-D-glucuronopyranosyl-soyasapogenol B. ...
DOI:
10.1007/s10600-017-2090-4

23. Cytotoxic Cardiac Glycoside from the Parasitic Plant Cuscuta reflexa

Author:
Muhammad Ali Versiani; Asma Kanwal; Shaheen Faizi; Ahsana Dar Farooq
Source:
Chemistry of natural compounds 2017 v.53 no.5 pp. 915-922
ISSN:
0009-3130
Subject:
Cuscuta reflexa; anticarcinogenic activity; beta-sitosterol; bioassays; chemical structure; coumarins; cytotoxicity; fractionation; glucosides; nuclear magnetic resonance spectroscopy; parasitic plants; prostatic neoplasms; spectral analysis; stable isotopes; ursolic acid
Abstract:
... Bioassay guided fractionation of the cytotoxic extract of the plant Cuscuta reflexa, employing cytotoxic assay against a panel of 60 cell lines, led to the isolation of 13 compounds identified as odoroside H (1), 21-hydroxyodoroside H (2), neritaloside (3), strospeside (4), 16-β-hydroxydigitoxin (5), N-trans and cis feruloyl tyramines (6 and 7), ethyl caffeate (8), coumarins (9 and 10), ursolic ac ...
DOI:
10.1007/s10600-017-2154-5

24. Ergostane Steroids, Tirucallane and Apotirucallane Triterpenes from Guarea convergens

Author:
W. Hayasida; L. M. Oliveira; A. G. Ferreira; M. P. Lima
Source:
Chemistry of natural compounds 2017 v.53 no.2 pp. 312-317
ISSN:
0009-3130
Subject:
Guarea; biodiversity; branches; chemical elements; chemistry; chemotaxonomy; leaves; steroids; triterpenoids
Abstract:
... Phytochemical investigation of the leaves of Guarea convergens T. D. Penn. led to the isolation of new apotirucallane triterpenes 24-acetoxy-25-hydroxy-3,7-dioxoapotirucalla-14-en-21,23-olide and 7α,24,25-trihydroxy-3-oxoapotirucalla-14-en-21,23-olide, steroid ergosta-5,24(24′)-diene-3β,7α,21-triol, in addition to the known ergosta-5,24(24′)-diene-3β,4β,22S-triol. The investigation from branches y ...
DOI:
10.1007/s10600-017-1977-4

25. Fatty Acid Composition and Biological Activities of Oily Fractions from Pistacia integerrima Roots

Author:
A. Rauf; T. Ben Hadda; G. Uddin; M. F. Ramadan; S. Bawazeer; H. Khan; U. Farooq; A. Khan
Source:
Chemistry of natural compounds 2017 v.53 no.5 pp. 830-833
ISSN:
0009-3130
Subject:
Pistacia; antioxidant activity; bioassays; cytotoxicity; fatty acid composition; gas chromatography-mass spectrometry; infectious diseases; linoleic acid; oleic acid; palmitic acid; roots; urease
Abstract:
... The chemical composition of oily fractions from the roots of Pistacia integerrima was studied using GC/MS. The GC/MS study identified the presence of linoleic acid, palmitic acid, and oleic acid as the major fatty acids. The results of biological assays showed significant antibacterial, antiradical, cytotoxic, and urease inhibitory activities, which was supported by their antioxidant effect. Our s ...
DOI:
10.1007/s10600-017-2134-9

26. Fe-Catalyzed Synthesis of (13Z)-Eicos-13-en-10-one, the Main Sex Pheromone Component of Carposina niponensis

Author:
R. N. Shakhmaev; A. Sh. Sunagatullina; V. V. Zorin
Source:
Chemistry of natural compounds 2017 v.53 no.1 pp. 128-131
ISSN:
0009-3130
Subject:
Carposina; chlorides; sex pheromones; stereochemistry
Abstract:
... (13Z)-Eicos-13-en-10-one, the main sex pheromone component of Carposina niponensis, was synthesized stereoselectively via Fe-catalyzed cross-coupling of ethyl (4Z)-5-chloropent-4-enoate with hexylmagnesiumbromide to give ethyl (4Z)-undec-4-enoate and repeated Fe-catalyzed cross-coupling of its acid chloride with nonylmagnesiumbromide. ...
DOI:
10.1007/s10600-017-1925-3

27. First Ionic Conjugates of Dihydroquercetin Monosuccinate with Amines

Author:
N. V. Mamontova; E. I. Chernyak; E. V. Amosov; Yu. V. Gatilov; V. I. Vinogradova; S. F. Aripova; S. V. Morozov; I. A. Grigor’ev
Source:
Chemistry of natural compounds 2017 v.53 no.6 pp. 1045-1051
ISSN:
0009-3130
Subject:
alkaloids; amines; ammonia; antioxidant activity; free radicals; taxifolin; water solubility
Abstract:
... The reaction of dihydroquercetin monosuccinate with ammonia, a series of alkylamines, and amino-derivatives of heterocyclic compounds including nitroxyl radicals and alkaloids produced the corresponding ionic conjugates, the water solubility of which was 1–2 orders of magnitude greater than that of dihydroquercetin with retention of the high antioxidant activity. ...
DOI:
10.1007/s10600-017-2198-6

28. The First Isolation of 25,26,27-trisnor-3β-acetoxycycloartan-24-oic Acid and the Absolute Configuration of 3R,4R-O-di-caffeoyl Quinic Acid from Artemisia japonica

Author:
Ph. M. Giang; N. Th. Binh; T. Th. Th. Nhan; H. Th. Thuy; V. M. Trang; Ph. T. Son; H. Otsuka; K. Matsunami
Source:
Chemistry of natural compounds 2017 v.53 no.4 pp. 674-677
ISSN:
0009-3130
Subject:
Artemisia japonica; branches; chemistry; leaves; nuclear magnetic resonance spectroscopy; quinic acid; spectral analysis
Abstract:
... The first isolation of 25,26,27-trisnor-3β-acetoxycycloartan-24-oic acid from nature and the absolute configuration of 3R,4R-O-dicaffeoyl quinic acid from the leaves of Artemisia japonica Thunb. (Asteraceae) are reported. The other ten known compounds were also isolated from the leaves and twigs of the plant. Their structures were determined on the basis of MS, NMR, and CD spectroscopic data. ...
DOI:
10.1007/s10600-017-2088-y

29. Flexiosine, a New C20-Diterpene Alkaloid from Roots of Delphinium flexuosum

Author:
T. M. Gabbasov; E. M. Tsyrlina; D. M. Anatov; L. V. Spirikhin; M. S. Yunusov
Source:
Chemistry of natural compounds 2017 v.53 no.1 pp. 105-108
ISSN:
0009-3130
Subject:
Delphinium; alkaloids; chemistry; infrared spectroscopy; mass spectrometry; nuclear magnetic resonance spectroscopy; roots
Abstract:
... Methyllycaconitine and the new C₂₀-diterpene alkaloid flexiosine were isolated from roots of Delphinium flexuosum M. Bieb. The structure of the latter was elucidated using PMR, ¹³C NMR, and IR spectroscopy and mass spectrometry. ...
DOI:
10.1007/s10600-017-1920-8

30. General Chemical Characteristics of Pectins and Arabinogalactans from Callus Culture and Native Plant of Tanacetum vulgare and Gelation Properties of the Pectins

Author:
E. A. Gyunter; O. V. Popeiko; F. V. Vityazev
Source:
Chemistry of natural compounds 2017 v.53 no.1 pp. 6-11
ISSN:
0009-3130
Subject:
Tanacetum vulgare; arabinogalactans; callus; callus culture; esterification; galactose; gelation; hydrogels; indigenous species; molecular weight; pectins; plants (botany)
Abstract:
... Pectin and arabinogalactan (AG) were isolated from Tanacetum vulgare callus and native tissues. The main chain of the callus pectin macromolecule consisted of a linear galacturonan that made up over half of the whole carbohydrate chain and a branched region that was RG-I. Callus pectin was characterized by a higher molecular mass and lower degree of methyl esterification than pectin from the nativ ...
DOI:
10.1007/s10600-017-1898-2

31. Granaxylocartin A, New Limonoid from the Seeds of Xylocarpus granatum

Author:
Yibing Wu; Lilin Wang; Xin Wei; Xiaowei Shi; Francoise Sauriol; Yucheng Gu; Qingwen Shi; Jinlong Qi
Source:
Chemistry of natural compounds 2017 v.53 no.5 pp. 901-903
ISSN:
0009-3130
Subject:
Xylocarpus; chemical structure; limonoids; nuclear magnetic resonance spectroscopy; seeds
Abstract:
... A new limonoid, named granaxylocartin A (1), was isolated from the seeds of Xylocarpus granatum, and the structure was elucidated on the basis of one- and two-dimensional NMR (including ¹H, ¹³C NMR, DEPT, ¹H–¹H COSY, HSQC, HMBC, and NOESY). ...
DOI:
10.1007/s10600-017-2151-8

32. Hemisynthesis and Spectroscopic Characterization of Three New Chalcone Derivatives from Dorstenia barteri

Author:
Bathelemy Ngameni; Ghislain Wabo Fotso; Pantaleon Ambassa; Justin Kamga; Arif Dastan; Bonaventure Tchaleu Ngadjui
Source:
Chemistry of natural compounds 2017 v.53 no.2 pp. 241-247
ISSN:
0009-3130
Subject:
Moraceae; chalcone; herbaceous plants; hydrogenation; mass spectrometry; nuclear magnetic resonance spectroscopy; pyrolysis; spectral analysis
Abstract:
... The hemisynthesis of three new chalcones, namely kenzanol, kelianol A, and kelianol B, from Dorstenia barteri (Moraceae) is described here for the first time. The synthetic pathways employed in this work involved the pyrolysis and catalytic hydrogenation of readily available and starting materials, 4-hydroxylonchocarpin and isobavachalcone, two major constituents of the herbaceous plant D. barteri ...
DOI:
10.1007/s10600-017-1962-y

33. Identification and Antifungal Activity of Metabolites from the Mangrove Fungus Phoma sp. L28

Author:
Song Huang; Jiaxin Xu; Fenqi Li; Danli Zhou; Li Xu; Chunyuan Li
Source:
Chemistry of natural compounds 2017 v.53 no.2 pp. 237-240
ISSN:
0009-3130
Subject:
Colletotrichum musae; Fusarium graminearum; Fusarium oxysporum; Glomerella cingulata; Penicillium italicum; Phoma; Thanatephorus cucumeris; anthraquinones; antifungal properties; carbendazim; chemistry; endophytes; fungi; metabolites; spectral analysis
Abstract:
... A new anthraquinone, 7-(γ,γ)-dimethylallyloxymacrosporin (1), along with five known analogues, macrosporin (2), 7-methoxymacrosporin (3), tetrahydroaltersolanol B (4), altersolanol L (5), and ampelanol (6), were isolated from the mangrove endophytic fungus Phoma sp. L28. All of them were first found in Phoma sp. Their structures were established by comprehensive spectroscopic analyses and comparis ...
DOI:
10.1007/s10600-017-1961-z

34. Identification, Structure Elucidation, and Antioxidant Potential of a New Compound from Diospyros lotus

Author:
Abdur Rauf; Taibi Ben Hadda; Seema Patel; Ghias Uddin; Saud Bawazeer; Tareq Abu-Izneid; Bashir Ahmad
Source:
Chemistry of natural compounds 2017 v.53 no.5 pp. 849-851
ISSN:
0009-3130
Subject:
Diospyros lotus; antioxidant activity; spectral analysis; stems
Abstract:
... A new dimeric naphthoquinone, named 5,8,5 ′ -trihydroxy-8 ′ -methoxy-6,6 ′ -dimethyl-7,3-binaphthyl-1,4,1 ′ ,4 ′ -tetraone (1), was isolated from Diospyros lotus stem. The structure of the compound was elucidated by advance spectroscopic analysis including 1D and 2D experiments such as HMBC, NOESY, and J-resolved (JRES). Compound 1 was assessed for antioxidant activity, which showed good activity ...
DOI:
10.1007/s10600-017-2138-5

35. In vitro Antibacterial Evaluation of 1,2,4-Triazole Compounds Containing Purine Moiety

Author:
Sevdije Govori
Source:
Chemistry of natural compounds 2017 v.53 no.6 pp. 1137-1139
ISSN:
0009-3130
Subject:
antibacterial properties; carbon disulfide; ethanol; formic acid; moieties; nuclear magnetic resonance spectroscopy; potassium hydroxide
Abstract:
... 9H-[1,2,4]Triazolo[4,3-g]purin-5-amine (2) was synthesized by reaction of 6-hydrazinyl-7H-purin-2-amine (1a) with formic acid under reflux conditions. Treating compound 1a in ethanol with CS₂ in the presence of KOH yielded 5-amino-3H-[1,2,4]triazolo[4,3-g]purine-3-thione (3). The new synthesized compounds were characterized using IR, ¹H NMR, and elemental analysis. The synthesized compounds have b ...
DOI:
10.1007/s10600-017-2217-7

36. Influence of Introduction on Seed-Oil and Pulp Compositions of Cereal Varieties of Amaranthus hypochondriacus

Author:
Sh. K. Khidoyatova; N. K. Yuldasheva; N. T. Ul′chenko; N. V. Korableva; S. D. Gusakova; Sh. Sh. Sagdullaev; K. A. Tokhtakhunov; M. M. Muminov
Source:
Chemistry of natural compounds 2017 v.53 no.5 pp. 839-842
ISSN:
0009-3130
Subject:
Amaranthus hypochondriacus; fatty acids; pulp; seed oils; seeds; squalene; Russia; Uzbekistan
Abstract:
... Seed oil, pressed oil, and pulp oil from three varieties of Amaranthus hypochondriacus, Lera, Gelios, and Khar′kovskii-1, introduced into Uzbekistan were characterized for the first time. The contents of oil in seeds and squalene in pressed oils did not differ significantly. These parameters in the introduced variety Khar′kovskii-1 were slightly less than those in the analogous varieties growing i ...
DOI:
10.1007/s10600-017-2136-7

37. Influenza Antiviral Activity of Br-Containing [2R,4R(S),4aR,7R,8aR]-4,7-Dimethyl-2-(Thiophen-2-YL)Octahydro-2H-Chromen-4-Ols Prepared from (–)-Isopulegol

Author:
E. V. Nazimova; A. A. Shtro; V. B. Anikin; O. S. Patrusheva; I. V. Il′ina; D. V. Korchagina; V. V. Zarubaev; K. P. Volcho; N. F. Salakhutdinov
Source:
Chemistry of natural compounds 2017 v.53 no.2 pp. 260-264
ISSN:
0009-3130
Subject:
antiviral properties; chemistry; influenza; monoterpenoids
Abstract:
... Influenza A (H1N1) antiviral activity of compounds with an octahydro-2H-chromene skeleton that were prepared by reacting the monoterpenoid (–)-isopulegol and thiophenecarboxaldehyde and its derivatives was studied for the first time. The 5-bromothiophene-2-carboxaldehyde derivative exhibited the greatest antiviral activity. ...
DOI:
10.1007/s10600-017-1966-7

38. Investigation of Antioxidant Activity and Fatty Acid Contents of Solanum dulcamara

Author:
A. Makasci Afacan; T. Sabudak; T. Ortakoy; G. Kiyak
Source:
Chemistry of natural compounds 2017 v.53 no.1 pp. 12-15
ISSN:
0009-3130
Subject:
Solanum dulcamara; antioxidant activity; ethyl acetate; gas chromatography; hexane; leaves; linolenic acid; methanol; methylene chloride
Abstract:
... The fatty acid compositions of the leaves and fruit of Solanum dulcamara were determined by gas chromatography. The leaf oil of S. dulcamara is remarkably rich in linolenic acid. Among the S. dulcamara extracts, according to the 2,2-diphenyl-2-picrylhydrazyl method, hexane and methanol show the highest activity levels in fruit and leaves, respectively. According to the β-carotene-linoleic acid met ...
DOI:
10.1007/s10600-017-1899-1

39. Isocoumarins from the Leaves of Nicotiana tabacum and Their Anti-Tobacco Mosaic Virus Activities

Author:
Yun Wang; Chun-Bo Liu; Qin-Peng Shen; Feng-Mei Zhang; Pei He; Zhi-Hua Liu; Hong-Bin Zhang; Ming-Ming Miao; Xiao-Dong Yang; Guang-Yu Yang
Source:
Chemistry of natural compounds 2017 v.53 no.3 pp. 440-443
ISSN:
0009-3130
Subject:
Nicotiana tabacum; antiviral properties; chemistry; isocoumarins; leaves; nuclear magnetic resonance spectroscopy; spectral analysis; viruses
Abstract:
... Two new isocoumarins, tabaisocoumarins D and E (1 and 2), together with four known isocoumarins (3–6) were isolated from the leaves of Nicotiana tabacum. Their structures were determined by means of HR-ESI-MS and extensive 1D and 2D NMR spectroscopic studies. Compounds 1, 2, 5, and 6 were tested for their anti-tobacco mosaic virus (anti-TMV) activities. The results revealed that compounds 1, 2, 5, ...
DOI:
10.1007/s10600-017-2018-z

40. Isolation and Characterization of Lectin from the Scallop Patinopecten yessoensis

Author:
I. V. Chikalovets; T. O. Mizgina; V. I. Molchanova; Yu. S. Ovcharenko; O. V. Chernikov
Source:
Chemistry of natural compounds 2017 v.53 no.4 pp. 717-721
ISSN:
0009-3130
Subject:
Gram-negative bacteria; Mizuhopecten yessoensis; Vibrio proteolyticus; lectins; molecular weight; pH; scallops
Abstract:
... Lectin (PYL) of molecular mass 17,154.5 Da that exhibited Gal/GalNAc-specificity was isolated from the scallop Patinopecten yessoensis. The lectin was completely inactivated by heating to 60°C for 30 min, exhibited the greatest activity at pH 5–9, and was metal-independent. It was shown that the lectin was involved in the mollusk protective mechanism by agglutinating the Gram-negative bacterium Vi ...
DOI:
10.1007/s10600-017-2098-9

41. Isolation and Identification of Radical Scavenging Components of Seeds of Desmodium styracifolium

Author:
Xuan-xuan Cheng; Chu-chu Guo; Quang Yang; Xiao-min Tang; Chun-rong Zhang
Source:
Chemistry of natural compounds 2017 v.53 no.1 pp. 36-39
ISSN:
0009-3130
Subject:
Desmodium; chemistry; flavonols; fractionation; nuclear magnetic resonance spectroscopy; seeds
Abstract:
... In order to promote comprehensive utilization of Desmodium styracifolium resources, bioassay-guided fractionation and a chemical investigation of D. styracifolium seeds, were conducted, which resulted in the isolation of a new flavonol acylglycoside (1) together with eight known compounds (2–9). Their structures were identified by spectroscopic techniques (1D/2D NMR and MS). All the compounds were ...
DOI:
10.1007/s10600-017-1905-7

42. Isolation and Structural Characterization of Cellulose from Arctic Brown Algae

Author:
K. G. Bogolitsyn; D. V. Ovchinnikov; P. A. Kaplitsin; A. S. Druzhinina; A. E. Parshina; E. V. Shul′gina; M. P. Semushina; L. A. Aleshina
Source:
Chemistry of natural compounds 2017 v.53 no.3 pp. 533-537
ISSN:
0009-3130
Subject:
Fucus vesiculosus; Laminaria; cellulose; chemistry; Arctic region
Abstract:
... A scheme for producing cellulose from the artic brown algae Fucus vesiculosus and Laminaria digitata was proposed. The physicochemical and structural features of the cellulose samples were studied and compared with those of celluloses from higher plants. Cellulose from Fucus vesiculosus was found primarily in the Iα-form; from Laminaria digitata, the Iα- and Iβ-forms. The studied samples were assu ...
DOI:
10.1007/s10600-017-2039-7

43. Isolation of Antimicrobial Peptides from Fritillaria pallidiflora

Author:
Y. Mijiti; P. Rozi; A. Waili; Y. H. Gao; V. V. Maksimov; Zh. F. Ziyavitdinov; A. Yili; Sh. I. Salikhov; H. A. Aisa
Source:
Chemistry of natural compounds 2017 v.53 no.6 pp. 1144-1147
ISSN:
0009-3130
Subject:
Candida albicans; Fritillaria pallidiflora; antimicrobial peptides; antimicrobial properties; electrophoresis; fungi; liquid chromatography; mass spectrometry; molecular weight; polypeptides; seed extracts; seeds
Abstract:
... Polypeptide fractions from seeds of Fritillaria pallidiflora Schrenk were isolated and purified. The peptide compositions and molecular masses were determined using SDS-PAAG electrophoresis and LC-MS analysis. The results showed that the most active fraction of biocidal peptides contained greater than 20 constituents with molecular masses in the range of 1050–4727.2 Da. The isolated peptide fracti ...
DOI:
10.1007/s10600-017-2219-5

44. Isoquinoline Alkaloids from Michelia fuscata

Author:
H. T. Li; C. L. Kao; C. R. Tsai; W. J. Li; C. Y. Chen
Source:
Chemistry of natural compounds 2017 v.53 no.3 pp. 504-507
ISSN:
0009-3130
Subject:
4-hydroxybenzoic acid; Michelia; benzoquinones; chemistry; hydroxybenzaldehyde; isoquinoline alkaloids; methylparaben; sesquiterpenoids; spectral analysis; stems; steroids; syringic acid
Abstract:
... Two new isoquinoline alkaloids, fuscatine A (1) and fuscatine B (2), along with 21 compounds including eight isoquinoline alkaloids, northalifoline (3), thalifoline (4), corydaldine (5), N-methylcorydaldine (6), (6,7-dimethoxyisoquinolinyl)-(4′-methoxyphenyl)-methanone (7),(6,7-dimethoxyisoquinolinyl)-(4′-hydroxyphenyl)-methanone (8), liriodenine (9), and corydine (10); two steroids, β-sitosterone ...
DOI:
10.1007/s10600-017-2032-1

45. Limonoids from the Seeds of Chisocheton macrophyllus

Author:
Nurlelasari; Dewa Gede Katja; Desi Harneti; Moelyono Moekti Wardayo; Unang Supratman; Khalijah Awang
Source:
Chemistry of natural compounds 2017 v.53 no.1 pp. 83-87
ISSN:
0009-3130
Subject:
Chisocheton; chemistry; cytotoxicity; inhibitory concentration 50; limonoids; mice; neoplasm cells; nuclear magnetic resonance spectroscopy; seeds
Abstract:
... A new limonoid compound, dysobinol (1), along with three known limonoid compounds, 7α-hydroxyneotricilenone (2), dysobinin (3), and nimonol (4), was isolated from the seeds of Chisocheton macrophyllus (Meliaceae). Their structures were established by spectroscopic techniques such as UV, IR, MS, 1D, and 2D NMR. Compounds 1–4 showed cytotoxic activity against P-388 murine leukemia cells with IC₅₀ va ...
DOI:
10.1007/s10600-017-1916-4

46. Lipids and Fatty Acids from Soft Tissues of the Bivalve Mollusk Spisula sachalinensis

Author:
O. V. Tabakaeva; A. V. Tabakaev
Source:
Chemistry of natural compounds 2017 v.53 no.1 pp. 16-20
ISSN:
0009-3130
Subject:
Spisula; chemistry; cholesterol; fatty acids; phospholipids; tissues; triacylglycerols
Abstract:
... The lipid composition of soft tissues of the Far-East bivalve mollusk Spisula sachalinensis was studied. Differences in the contents of individual lipid components, i.e., free and bound lipids including neutral lipids, sterols, glyceroglyco- and phospholipids, and cholesterol and its esters, were found. Bound lipids made up 84.2–90% of the lipid mass and were the major component of all soft tissue ...
DOI:
10.1007/s10600-017-1900-z

47. Mass Spectrometric Analysis of Supramolecular Complexes of Glycyrrhizic Acid and Simvastatin

Author:
E. V. Vetrova; A. V. Lekar’; N. I. Borisenko
Source:
Chemistry of natural compounds 2017 v.53 no.2 pp. 304-309
ISSN:
0009-3130
Subject:
aqueous solutions; electrospray ionization mass spectrometry; glycyrrhizin; hydrophobic bonding; methanol; models; ultraviolet-visible spectroscopy
Abstract:
... Molecular complexes of glycyrrhizic acid (GA) and simvastatin (SV) were synthesized and studied for the first time using electrospray-ionization mass spectrometry (ESI-MS). Model complexes were synthesized in pure MeOH and its 25% aqueous solution. Complexation of GA and SV in the liquid phase was studied using ESI-MS and was confirmed using standard UV spectroscopy. Peaks for supramolecular GA–SV ...
DOI:
10.1007/s10600-017-1975-6

48. Modified Coumarins. 39. Synthesis of Aloperine-Containing Mannich Bases of 7-Hydroxycoumarins

Author:
Ya. L. Garazd; M. M. Garazd
Source:
Chemistry of natural compounds 2017 v.53 no.3 pp. 444-447
ISSN:
0009-3130
Subject:
alkaloids; aminomethylation; umbelliferones
Abstract:
... The possibility of using the alkaloid aloperine for aminomethylation of hydroxycoumarins was investigated. Series of substituted 6- and 8-(aloperin-1-yl)methyl derivatives of 7-hydroxycoumarins were synthesized. ...
DOI:
10.1007/s10600-017-2019-y

49. Modified Coumarins. 40. Synthesis of Benzopyran-2-One Carbonyl Derivatives of 9-Nitrocytisine

Author:
S. Yu. Patrikei; Ya. L. Garazd; M. M. Garazd
Source:
Chemistry of natural compounds 2017 v.53 no.3 pp. 448-452
ISSN:
0009-3130
Subject:
chemical derivatives; psoralens; synthesis
Abstract:
... Derivatives of coumarins, furocoumarins, and dihydropyranocoumarins containing a 9-nitrocytisine moiety were synthesized. ...
DOI:
10.1007/s10600-017-2020-5

50. Multi-Step Rearrangement Mechanism for Acetyl Cedrene to the Hydrocarbon Follower†

Author:
S. K. Paknikar; F. S. Kamounah; P. E. Hansen; M. S. Wadia
Source:
Chemistry of natural compounds 2017 v.53 no.4 pp. 661-664
ISSN:
0009-3130
Subject:
acetic anhydride; cations; chemistry
Abstract:
... Conversion of acetyl cedrene (2) to its follower (3) using acetic anhydride and polyphosphoric acid involves a multi-step cationic molecular rearrangement, which is consistent with deuteriation and 1-¹³C labeling studies of acetyl cedrene. The key step involves cyclopropylcarbinyl cation-cyclopropylcarbinyl cation rearrangement. ...
DOI:
10.1007/s10600-017-2085-1