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You searched for: Journal name Chemistry of natural compounds Remove constraint Journal name: Chemistry of natural compounds Publication year rev 7990-2010 Remove constraint Publication year rev: 7990-2010 Source 2010 v.46 no.5 Remove constraint Source: 2010 v.46 no.5
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1. Biotransformation of some monoterpenoid ketones by Chlorella vulgaris MCCS 012

Author:
Ghasemi, Younes; Mohagheghzadeh, Abdolali; Ostovan, Zahra; Moshavash, Maryam; Rasoul-Amini, Sara; Hossein Morowvat, Mohammad
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 734-737
ISSN:
0009-3130
Subject:
Chlorella vulgaris; biotransformation; carvone; cell lines; genes; menthol; menthone; microalgae; nucleotide sequences; ribosomal RNA; screening; soil sampling; temperature; thin layer chromatography; Iran
Abstract:
... Biotransformation of several monoterpene ketones, including carvone, pulegone, piperitone, menthone, and fenchone, was carried out by the locally isolated unicellular microalgae Chlorella vulgaris. The microalgal strain was isolated during a screening program from soil samples collected from paddy-fields of Fars Province, in the south of Iran. Chlorella vulgaris was cultured in 250 mL conical flas ...
DOI:
10.1007/s10600-010-9728-9

2. Cardiotonic steroids with additional lactone rings

Author:
Makarevich, I. F.; Kovalenko, S. N.; Ulesov, A. V.
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 742-745
ISSN:
0009-3130
Subject:
chemical structure; lactones; stereochemistry; steroids
Abstract:
... Stereochemical structural transformations of cardiosteroids to create in them additional lactone rings were studied. Creation of δ-lactones by reaction of a 3β-OH group and a 19-carboxylic group to give the corresponding A/B-trans cardiosteroids and creation of β-lactones by reaction of a 5β-OH group and a 19-COOH to give the corresponding A/B-cis steroids were studied. The new biologically active ...
DOI:
10.1007/s10600-010-9730-2

3. Chemical constituents from the fruits of Ligustrum lucidum

Author:
Liu, Xin; Wang, Chang-Yun; Shao, Chang-Lun; Fang, Yu-Chun; Wei, Yu-Xi; Zheng, Cai-Juan; Sun, Ling-Ling; Guan, Hua-Shi
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 701-703
ISSN:
0009-3130
Subject:
Ligustrum lucidum; fruits; spectral analysis
Abstract:
... One new δ-valerolactone (1) and one new natural phenolic glycoside 2, together with four known compounds 3-6, were isolated from the fruits of Ligustrum lucidum. Their structures were elucidated on the basis of spectral data. The chemical transformation from 2 to 3 was observed. The immunomodulatory activities of the compounds were also evaluated. ...
DOI:
10.1007/s10600-010-9719-x

4. Constituents of fruit pulp of Maytenus salicifolia and complete 1D/2D NMR data of 3β-hydroxy-D:B-friedo-olean-5-ene

Author:
Valladao, Frederico N.; de Miranda, Roqueline R. S.; de Oliveira, Gabriela S.; Silva, Gracia D. F.; Duarte, Lucienir P.; Filho, Sidney A. V.
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 686-691
ISSN:
0009-3130
Subject:
Maytenus; esters; fruit pulp; fruits; hydrocarbons; nuclear magnetic resonance spectroscopy; spectral analysis; stereochemistry
Abstract:
... A mixture of long-chain hydrocarbons constituted by nonacosane (29C, 7.5%), hentriacontane (31C, 48.3%), and tritriacontane (33C, 30.1%), the ester 1′-acetyloxymethylpentacosa-20′-enyl 10-hydroxydecanoate (2), β-amyrin (3), friedelin (4), and lupeol (5), and 3β-hydroxy-D:B-friedo-olean-5-ene (6) were identified as constituents of fruits of Maytenus salicifolia Reissek (Celastraceae). The structura ...
DOI:
10.1007/s10600-010-9716-0

5. DNA-protector and cytotoxic activity of secoisolariciresinol diglucoside derivatives

Author:
Stasevich, O. V.; Shman, T. V.; Mikhalenok, S. G.; Kurchenko, V. P.
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 704-709
ISSN:
0009-3130
Subject:
Linum usitatissimum; acetylation; carbohydrates; chemical structure; cytotoxicity; free radicals; lignans; neoplasms; phenol; seeds
Abstract:
... The relationship between the chemical structure and DNA-protector and cytotoxic activities of phenylpropane lignans was studied. Analogs were synthesized from the lignan secoisolariciresinol diglucoside (SDG) isolated from Linum usitatissimum seeds. It was shown that SDG derivatives secoisolariciresinol and secoisolariciresinol-4′,4″-diacetate, which were not glucosides, exhibited greater cytotoxi ...
DOI:
10.1007/s10600-010-9720-4

6. Indole alkaloids from the roots of Isatis ingigotica and their antiherpes simplex virus type 2 (HSV-2) activity in vitro

Author:
Sun, Dong-Dong; Dong, Wei-wei; Li, Xiang; Zhang, Han-Qing
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 763-766
ISSN:
0009-3130
Subject:
Isatis tinctoria; Oriental traditional medicine; antiviral properties; indole acetic acid; indole alkaloids; medicinal plants; roots
Abstract:
... A new indole alkaloid 1, together with four known indole alkaloids 2-5, was isolated from the 95% EtOH extract of the traditional Chinese medicinal plant Isatis indigotica. Alkaloids 2-5 were found in the plant for the first time. Their structures were elucidated as 3-hydroxy-3-acetonitrile-4-hydroxy-2-indolone (1), 1-methoxy-3-indoleacetonitrile (2), 3-indoleacetic acid (3), 3-indolealdehyde (4), ...
DOI:
10.1007/s10600-010-9735-x

7. Lipid composition of Potamogeton pectinatus as a function of water contamination

Author:
Rozentsvet, O. A.; Bogdanova, E. S.
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 682-685
ISSN:
0009-3130
Subject:
Stuckenia pectinata; acids; basins; glycolipids; habitats; lipid composition; rivers; triacylglycerols; water pollution
Abstract:
... The lipid composition of Potamogeton pectinatus L. collected in different parts of the Sok River in the Lower Volga basin was studied. Differences were found in the quantitative lipid composition of the plant as a function of habitat. Plants inhabiting contaminated waters typically had a lower content of total lipids and glycolipids with an increased content of neutral lipids in addition to a lowe ...
DOI:
10.1007/s10600-010-9715-1

8. Nanostructures of pectin and its metal complexes

Author:
Maksudova, Sh. D.; Milusheva, R. Yu.; Kholmuminov, A. A.; Rashidova, S. Sh.
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 677-681
ISSN:
0009-3130
Subject:
electron microscopy; lemons; metal ions; metals; nanomaterials; pectins; seed cotton
Abstract:
... Complexes with metal ions and nanostructures of pectin from Yalongoch lemon were prepared by precipitation. The structural organization and characteristics of the resulting nanostructures were studied by electron microscopy, rheology, and potentiometric titration. A growth-stimulating effect on cotton seeds was found for pectin nanostructures containing biogenic cations. ...
DOI:
10.1007/s10600-010-9714-2

9. Oxidation of usninic acid

Author:
Sokolov, D. N.; Luzina, O. A.; Polovinka, M. P.; Korchagina, D. V.; Gatilov, Yu. V.; Salakhutdinov, N. F.
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 730-733
ISSN:
0009-3130
Subject:
chemical structure; heterocyclic compounds; oxidants; oxidation; resorcinol
Abstract:
... Reactions of usninic acid with various oxidants were studied. The oxidation occurred at the resorcinol ring. New derivatives of usninic acid were obtained from reactions with per-acids. ...
DOI:
10.1007/s10600-010-9727-x

10. Phenolic substances of Caragana conferta and their superoxide scavenging activity

Author:
Khan, R.; Malik, A.; Qadir, M. I.; Adhikari, A.; Choudhary, M. I.
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 722-725
ISSN:
0009-3130
Subject:
Caragana; acetates; spectroscopy
Abstract:
... New phenolic constituents 1 and 2 have been isolated from the ethyl acetate soluble fraction of Caragana conferta along with 7-hydroxy-4′-methoxyisoflavone (3) and 5,6,7-trihydroxy-4′-methoxyflavone (4), reported for the first time from this species. Their structures were determined by spectroscopic studies. Compounds 1 and 3 showed a significant superoxide scavenging activity, while 2 was found t ...
DOI:
10.1007/s10600-010-9725-z

11. Phytochemical investigations of Vernonia galamensis seeds

Author:
Fiseha, Ashebir; Tadesse, Mekuria; Bekele, Tesfaye; Bedemo, Belete
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 692-695
ISSN:
0009-3130
Subject:
Vernonia; industrial oils; nuclear magnetic resonance spectroscopy; oilseed crops; seeds; semiarid zones; vernolate
Abstract:
... Vernonia galamensis is a new potential industrial oil seed crop for semiarid areas with very high content of naturally epoxidized vernolic acid (80% of the oil). Chemical investigation of the seeds of Vernonia galamensis afforded two compounds, which are vernolic acid derivatives. Their structures were established by various spectroscopic techniques: IR, UV, NMR, and 2D NMR spectra (COSY, HSQC, an ...
DOI:
10.1007/s10600-010-9717-z

12. Reduction products of the alkaloid norfluorocurarine

Author:
Yuldashev, P. Kh.; Tashkhodzhaev, B.; Turgunov, K. K.; Mirzaeva, M. M.
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 774-778
ISSN:
0009-3130
Subject:
alkaloids; chemical reduction; chemical structure; infrared spectroscopy; synthesis; ultraviolet-visible spectroscopy
Abstract:
... The alkaloid norfluorocurarine was reduced under various conditions to produce the novel bisindoline derivative 2,16-dihydro-19-oxo-C-dihydrotoxiferine and the previously known natural derivatives deoxydihydro-, deoxytetrahydro-, and tetrahydronorfluorocurarine. The structures of the synthesized compounds were identified using IR and UV spectroscopy; of newly produced 2,16-dihydro-19-oxoC-dihydrot ...
DOI:
10.1007/s10600-010-9738-7

13. Synthesis and calming activity of 2-amino-4-(4-β-d-allopyranoside-phenyl)-6-3(4)-substituted phenylpyrimidines

Author:
Yin, XiuJuan; Zheng, Lei; Li, Ying; Yin, ShuFan
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 779-782
ISSN:
0009-3130
Subject:
chalcones; locomotion; nuclear magnetic resonance spectroscopy
Abstract:
... Using helicid as starting material, E-4-β-D-allopyranoside-cinnamic-4-substituted phenylketones (1a-1h) containing the structure of chalcones were synthesized; then these chalcones were reacted with guanidine hydrochloride through a 1,4-Michael reaction, giving 2-amino-4-(4-β-D-allopyranoside-phenyl)-6-3(4)substituted phenylpyrimidines (2a-2h), which were characterized by IR, ¹H NMR, and HR-MS. Th ...
DOI:
10.1007/s10600-010-9739-6

14. Synthesis and structure characterization of novel luteolin derivatives

Author:
Li, Jing Fen; Wang, Li Sheng; Bai, Hai Qiang; Yang, Bin; Chen, Zhi Gang
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 716-718
ISSN:
0009-3130
Subject:
chemical structure; luteolin; medicinal properties
Abstract:
... A series of novel luteolin derivatives was synthesized employing the Vilsmeier-Haak-Arnold reaction from the intermediate compound 3′,4′,7-trichloro-5-hydroxyflavone, which was obtained from luteolin. These derivatives may be used to improve the pharmacological activities of luteolin. ...
DOI:
10.1007/s10600-010-9723-1

15. Synthesis of 3-deoxy-3β-(3-aminopropoxyamino) derivatives of oleanolic and ursolic acids

Author:
Giniyatullina, G. V.; Kazakova, O. B.; Tolstikov, G. A.
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 760-762
ISSN:
0009-3130
Subject:
antiviral properties; oleanolic acid; papilloma; viruses
Abstract:
... 3-Deoxy-3β-(3-aminopropoxyamino) derivatives of oleanolic and ursolic acids were synthesized. 3-Deoxy3-(2-cyanoethoxyimino)urs-12-en-28-oic acid was active in vitro with selectivity index SI 30 against papilloma virus (strain HPV-11). ...
DOI:
10.1007/s10600-010-9734-y

16. Synthesis of flavonoid derivatives of cytisine. 1. aminomethylation of 7-hydroxy-3-arylcoumarins

Author:
Bondarenko, S. P.; Frasinyuk, M. S.; Vinogradova, V. I.; Khilya, V. P.
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 771-773
ISSN:
0009-3130
Subject:
alkaloids; coumarins; flavonoids; synthesis
Abstract:
... Aminomethylation involving the natural alkaloid (-)-cytisine of analogs of natural 3-arylbenzopyran-2ones was studied. Substituted 8-(cytisin-12-yl)methyl-3-aryl-7-hydroxycoumarins were synthesized. ...
DOI:
10.1007/s10600-010-9737-8

17. Three phytoecdysteroids from Sagina japonica and potential biotransforming pathways of japonicone

Author:
Jia, Aiqun; Li, Yan; Zhou, Jun; Gao, Jinming
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 738-741
ISSN:
0009-3130
Subject:
Sagina; ecdysterone; nuclear magnetic resonance spectroscopy; phytoecdysteroids
Abstract:
... In continuation of the series of studies on the chemical components of the whole plant of Sagina japonica Ohwi, another two phytoecdysteroids named 22,25-epoxy-24-methylene-2,3,14,20-tetrahydrocholest-7-en-6-one, or japonicone (1) and shidasterone (2), along with the previously reported compound 20-hydroxyecdysone (3), have been isolated on the basis of polyspectroscopic methods (¹H NMR, ¹³C NMR, ...
DOI:
10.1007/s10600-010-9729-8

18. bis-Cardenolides

Author:
Gubin, Yu. I.; Makarevich, I. F.
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 756-759
ISSN:
0009-3130
Subject:
ammonium salts; cardenolides; hydrolysis; physicochemical properties
Abstract:
... Twelve new bis-cardenolides were synthesized by reaction of natural cardenolides with diamines to form imines and ammonium salts. Anomalous physicochemical properties consisting of resistance to hydrolysis and increased polarity were observed for the bis-ketoimines. ...
DOI:
10.1007/s10600-010-9733-z

19. A new 9,10-dihydrophenanthrenedione from Cannabis sativa

Author:
Cheng, Liang; Kong, Deyun; Hu, Guang; Li, Huiting
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 710-712
ISSN:
0009-3130
Subject:
Cannabis sativa; branches; chemical structure; leaves; nuclear magnetic resonance spectroscopy; phenolic compounds; plant extracts
Abstract:
... The structure of a new 9,10-dihydrophenanthrenedione, which was isolated from the leaves and branches of Cannabis sativa L., was elucidated as 9,10-dihydro-2,3,5,6-tetramethoxyphenanthrene-1,4-dione (1) on the basis of MS, ¹H NMR, and ¹³C NMR methods, especially 2D NMR techniques (HMBC and NOESY). ...
DOI:
10.1007/s10600-010-9721-3

20. A new biscoumarin and other constituents from Guazuma tomentosa ROOTS

Author:
Agarwal, O. P.; Saxena, U.; Jain, S. C.; Jain, R.
Source:
Chemistry of natural compounds 2010 v.46 no.5 pp. 713-715
ISSN:
0009-3130
Subject:
Guazuma; chemical constituents of plants; chemical structure; coumarin; dicoumarol; medicinal plants; nuclear magnetic resonance spectroscopy; oleanolic acid; roots; stearic acid
Abstract:
... A new dicoumarol, 3,3′-methylenebis(4,6-dihydroxycoumarin) (1), along with the known metabolites, β-sitosteryl stearate (2), n-tetracosanoic acid (3), friedelin (4), friedel-1-en-3-one (5), β-sitosterol (6), 29-norcycloartanol (7), oleanolic acid (8), 3-O-acetyloleanolic acid (9), 6-methoxy-7,8-methylenedioxy coumarin (10), and methyl-3-acetyloleanolate (11), were isolated from the roots of Guazum ...
DOI:
10.1007/s10600-010-9722-2