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You searched for: Journal Chemistry of natural compounds Remove constraint Journal: Chemistry of natural compounds Publication Year 2017 Remove constraint Publication Year: 2017 Subject chemical structure Remove constraint Subject: chemical structure
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1. 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

2. 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

3. A New Hexanedioic Acid Analogue from the Endophytic Fungus Penicillium sp. OC-4 of Orchidantha chinensis

Author:
Yu Luo; Wuhai Chen; Lu Wen; Lin Zhou; Xi Kang; Gang Chen
Source:
Chemistry of natural compounds 2017 v.53 no.5 pp. 834-838
ISSN:
0009-3130
Subject:
Penicillium; antibacterial properties; antioxidant activity; chemical structure; endophytes; fungi; median effective concentration; nuclear magnetic resonance spectroscopy; superoxide anion; thymine
Abstract:
... A new hexanedioic acid analogue, (2S,5R)-2-ethyl-5-methylhexanedioic acid (1), along with two known compounds, thymine (2) and cerevisterol (3), were isolated from Penicillium sp. OC-4, an endophytic fungus associated with Orchidantha chinensis, which has been used in folk medicine for the treatment of fever and cough. The structure of compound 1 was unequivocally elucidated on the basis of one- a ...
DOI:
10.1007/s10600-017-2135-8

4. A New Insecticidal Lignan Glucoside from Galium verum

Author:
Jia Chen; Chun-Chao Zhao; Jian-Hua Shao; Ju-Di Fan; Xu-Hua Huang
Source:
Chemistry of natural compounds 2017 v.53 no.4 pp. 626-628
ISSN:
0009-3130
Subject:
Galium verum; Helicoverpa armigera; Scorpiones; chemical structure; glucosides; insecticidal properties; lignans; mortality; poisoning; scorpion venoms; spectral analysis; stomach; toxicity
Abstract:
... A new lignan glucoside, galiveroside A (1), and seven known compounds (2–8), were isolated from Galium verum L. The structure of 1 was elucidated on the basis of extensive spectroscopic analyses. Compound 1, at the concentration of 5 mg/mL, showed insecticide activity to 3 age cotton bollworm with a mortality of 16.3% through stomach poisoning. When combined with a recombinant scorpion toxin rLqh ...
DOI:
10.1007/s10600-017-2075-3

5. New Iridoid from the Stems of Viburnum erosum

Author:
Seo-Ji In; Kyeong-Hwa Seo; Hyoung-Geun Kim; Na-Young Song; Nam-In Baek
Source:
Chemistry of natural compounds 2017 v.53 no.2 pp. 265-268
ISSN:
0009-3130
Subject:
Viburnum; chemical structure; iridoids; nuclear magnetic resonance spectroscopy; spectral analysis; stems
Abstract:
... A new iridoid (1) was isolated from the stems of Viburnum erosum along with two known iridoids, 7-O-tigloylsecologanolic acid (2) and 7-ketologanin (3). The chemical structure of the compounds was established based on NMR, IR, and MS spectroscopic data. ...
DOI:
10.1007/s10600-017-1967-6

6. A New Isophthalic Acid from Talaromyces flavus

Author:
Junwei He; Li Yang; Yaqi Wang; Zhengqiang Mu; Zhengrong Zou; Xiumei Wang; Guoyue Zhong
Source:
Chemistry of natural compounds 2017 v.53 no.3 pp. 409-411
ISSN:
0009-3130
Subject:
Talaromyces flavus; antimicrobial properties; chemical structure; cytotoxicity; fungi; nuclear magnetic resonance spectroscopy; spectral analysis; wetlands
Abstract:
... A new isophthalic acid, 2-acetyl-5-hydroxy-6-methoxyisophthalic acid (1), was isolated from the wetland soil-derived fungus Talaromyces flavus (No. BYD07-13). Its chemical structure was elucidated on the basis of UV, IR, MS, and NMR spectroscopic analyses. The anti-Aβ ₄₂ aggregation, cytotoxic, and antimicrobial activities of compound 1 were tested. Compound 1 displayed significant anti-Aβ ₄₂ aggr ...
DOI:
10.1007/s10600-017-2010-7

7. A New Lignan Glucoside from Cyclea racemosa

Author:
Jian-Hua Shao; Xue-Wei Zhang; Zi-Ling Dong; Si-Hui Li; Ben-Jie Miao; Ke-Zhi Cheng
Source:
Chemistry of natural compounds 2017 v.53 no.6 pp. 1025-1027
ISSN:
0009-3130
Subject:
Cyclea; chemical structure; glucosides; lignans; spectral analysis
Abstract:
... A new lignan glucoside 1, along with two known lignans (2, 3), was isolated from Cyclea racemosa Oliv. Its structure was elucidated as (+)-7′-methoxylariciresinol 4-O-β-D-glucopyranoside on the basis of extensive spectroscopic analyses. ...
DOI:
10.1007/s10600-017-2193-y

8. Reaction of Halogenated Uracils with KI

Author:
I. B. Chernikova; L. V. Spirikhin; M. F. Abdullin; M. S. Yunusov
Source:
Chemistry of natural compounds 2017 v.53 no.6 pp. 1140-1143
ISSN:
0009-3130
Subject:
chemical reactions; chemical structure; methanol; sulfuric acid
Abstract:
... Treatment of 5-iodo-1,3,6-trimethyluracil or 5-bromo-1,3,6-trimethyluracil with H₂SO₄ (5%) in the presence of an excess of KI at 80°C for 5 h produced 1,3,6-trimethyluracil as the only product. Analogous treatment of N-bromo-6-iodomethyluracil gave a mixture with 5-bromo-6-iodomethyluracil as the main constituent. The reaction with an excess of KI in MeOH at 50°C formed 5-bromo-6-hydroxymethylurac ...
DOI:
10.1007/s10600-017-2218-6

9. Secondary Metabolite from the Fungal Strain Monascus pilosus

Author:
Ming-Jen Cheng; Ming-Der Wu; Yen-Chen Cheng; Jih-Jung Chen; Hing-Yuen Chan; Hsun-Shuo Chang; Yueh-Hsiung Kuo; Gwo-Fang Yuan
Source:
Chemistry of natural compounds 2017 v.53 no.5 pp. 874-876
ISSN:
0009-3130
Subject:
Monascus pilosus; chemical structure; fungi; mass spectrometry; nuclear magnetic resonance spectroscopy; red yeast rice; secondary metabolites
Abstract:
... A new benzopyran derivative, (–)-rel-5,7-dihydroxy-2-(4-methoxypentyl)-4,6-dimethylisochroman-8-one (1), was isolated from the red yeast rice of Monascus pilosus. The structure was determined by analyses of mass spectrometry and 1D and 2D NMR data. The relative configuration of the isolated compound was assigned on the basis of 2D NOESY experiments. ...
DOI:
10.1007/s10600-017-2144-7

10. Steroidal Saponin from Allium porrum

Author:
L. N. Gvazava; A. V. Skhirtladze
Source:
Chemistry of natural compounds 2017 v.53 no.6 pp. 1093-1095
ISSN:
0009-3130
Subject:
Allium porrum; chemical structure; fractionation; spectral analysis; steroid saponins
Abstract:
... A new steroidal glycoside (1) was isolated by fractionation of total extracted substances from Allium porrum. Its structure was determined as (25R)-5α-spirostan-3β,6β-diol-12-one 3-O-β-D-glucopyranosyl-(1→2)-[β-D-fucopyranosyl-(1→3)]-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside using chemical transformations, physical constants, and spectral data. ...
DOI:
10.1007/s10600-017-2208-8

11. Transformations of 6,7-difluoroquinoxaline with Indoles: Synthesis of Indole-Substituted 6,7-difluoroquinoxalines and Tris(indol-3-yl)methane Derivatives

Author:
Yu. A. Azev; O. S. Ermakova; M. A. Ezhikova; M. I. Kodess; V. S. Berseneva; I. S. Kovalev
Source:
Chemistry of natural compounds 2017 v.53 no.3 pp. 519-522
ISSN:
0009-3130
Subject:
chemical derivatives; chemical structure; indoles; quinoxalines; synthesis
Abstract:
... 6,7-Difluoroquinoxaline (1) reacted with 1- and 2-methylindoles (2a and 2b) with heating in AcOH to give products from substitution of H in the heterocyclic fragment (3a and 3b) and tris(indol-3-yl)methane derivatives (4a and 4b). ...
DOI:
10.1007/s10600-017-2036-x

12. 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

13. A New Alkaloid with Tracheal Relaxant Effect from the Bulbs of Fritillaria pallidiflora

Author:
Yan Li; A. Yili; Aziz Muhamat; H. A. Aisa
Source:
Chemistry of natural compounds 2017 v.53 no.5 pp. 926-928
ISSN:
0009-3130
Subject:
Fritillaria pallidiflora; alkaloids; bulbs; chemical structure; medicinal properties; spectral analysis
Abstract:
... A new isosteroidal alkaloid, yibeinone E (1), along with five known ones, zhebeinone 3-O-β-D-glucoside (2), sinpeinine A (3), yubeinine (4), ebeinone (5), and delavinone (6), were isolated from the bulbs of Fritillaria pallidiflora. Their structures were confirmed on the basis of extensive spectroscopic analysis or comparison with the data in the literature (known compounds). Compound 3 showed an ...
DOI:
10.1007/s10600-017-2156-3

14. A New Spiro Compound from Caragana acanthophylla

Author:
L. Maihesuti; P. Lan; M. Imerhasan; K. A. Eshbakova; X. Jia
Source:
Chemistry of natural compounds 2017 v.53 no.4 pp. 646-648
ISSN:
0009-3130
Subject:
Caragana; aerial parts; chemical structure; nuclear magnetic resonance spectroscopy
Abstract:
... The new spiro compound 1-carbonyl-3-methoxy-2,4-diene-spiro[5,7]-14,15-dihydroxynaphthalene (1) and four known compounds [calycosin (2), psoracinol (3), octadecyl caffeate (4), (–)-syringaresinol (5)] were isolated from the aerial part of Caragana acanthophylla. The molecular structures were determined using PMR, ¹³C NMR, 2D, and mass spectra. ...
DOI:
10.1007/s10600-017-2081-5

15. New Thiophene Acetylene from Echinops spinosissimus subsp. spinosus

Author:
Yibing Wu; Shaojing Li; Zhaoxin Zhang; Francoise Sauriol; Qingwen Shi; Jie Yang
Source:
Chemistry of natural compounds 2017 v.53 no.5 pp. 933-934
ISSN:
0009-3130
Subject:
Echinops; acetylene; chemical structure; nuclear magnetic resonance spectroscopy; roots; thiophene
Abstract:
... A new thiophene acetylene, named 2,2-dimethyl-4-[5′-(prop-1-ynyl)-2,2′-bithiophen-5-yl]-1,3-dioxolane (1), was isolated from the roots of Echinops spinosus, and the structure was elucidated on the basis of oneand two-dimensional NMR (including ¹H, ¹³C NMR, DEPT, ¹H–¹H COSY, HSQC, and HMBC). ...
DOI:
10.1007/s10600-017-2158-1

16. A New Triterpenoid from Ixeris chinensis

Author:
Qing-hu Wang; Cui-lan Bai; Jing-jing Han; Bai-yinmu-qi-er Bao
Source:
Chemistry of natural compounds 2017 v.53 no.6 pp. 1080-1082
ISSN:
0009-3130
Subject:
Asteraceae; chemical structure; ethyl acetate; nuclear magnetic resonance spectroscopy; plant extracts; triterpenoids
Abstract:
... A new triterpenoid, namely 3β-(2-methoxy-5-formylphenoxy)-erythrodiol (1), was isolated from the EtOAc extract of Ixeris chinensis. The structures of 1 was elucidated by spectroscopic methods, including UV, IR, HR-ESI-MS, and extensive 1D and 2D NMR techniques. ...
DOI:
10.1007/s10600-017-2205-y

17. Two New Alkaloids from the Seeds of Cassia alata and Their Anti-Tobacco Mosaic Virus Activity

Author:
Yan Yang; Shan-Zhai Shang; Wei Zhao; Huan-huan Xing; Hang-Ying Ma; Ling Zhou; Min Zhou; Yan-Qing Ye; Hai-Yan Wu; Gang Du; Dong-Lai Zhu; Qiu-Fen Hu
Source:
Chemistry of natural compounds 2017 v.53 no.6 pp. 1127-1130
ISSN:
0009-3130
Subject:
Senna alata; alkaloids; antiviral properties; chemical structure; nuclear magnetic resonance spectroscopy; seed extracts; seeds; spectral analysis; viruses
Abstract:
... Two new alkaloids, 3-(hydroxymethyl)-6,9-dimethyl-7H-benzo[de]quinolin-7-one (1) and 3-(hydroxymethyl)-8-methoxy-6,9-dimethyl-7H-benzo[de]quinolin-7-one (2), together with two known alkaloids (3 and 4) were isolated from the seeds 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-tobac ...
DOI:
10.1007/s10600-017-2215-9

18. Two New Polyketide Metabolites Isolated from Paraconiothyrium brasiliense

Author:
Guo-Bo Xu; Jiao Mi; Tao Yang; Lin-Wei Wu; Xiao-Hong Yuan; Guo-You Li
Source:
Chemistry of natural compounds 2017 v.53 no.5 pp. 870-873
ISSN:
0009-3130
Subject:
chemical structure; fungi; metabolites; nuclear magnetic resonance spectroscopy; polyketides
Abstract:
... Two new polyketide metabolites, named ethyl 8-hydroxy-9-oxo-9H-xanthene-1-carboxylate (1) and 1,8-dihydroxy-2-(1-hydroxyethyl)anthracene-9,10-dione (2), along with six known compounds, were isolated from the fungus Paraconiothyrium brasiliense. The structures of the new compounds were elucidated on the basis of 1D and 2D NMR experiments. ...
DOI:
10.1007/s10600-017-2143-8