CSDB: Search results

NCBI PubMed ID: 17236084
Publication DOI: 10.1055/s-2006-959577
Journal NLM ID: 0066751
Publisher: George Thieme
Institutions: Lehrstuhl für Organische Chemie 1/2, NW II, Universität Bayreuth, D-95440 Bayreuth, Federal Republic of Germany

The β-glucosides of 3-oxo-α-ionol and 5,6-epoxy-5,6-dihydro-3-hydroxy-β-ionol were isolated from fresh leaves of Nicotiana rustica. Two or more of the glucosides of 3-oxo-α-ionol, 5,6-epoxy-5,6-dihydro-3-hydroxy-β-ionol, 3-hydroxy-β-damascone, blumenol A, 4-(3-hydroxybutylidene)-3,5,5-trimethyl-2-cyclohexenl-one and blumenol C were shown to be present and the amounts measured in N. alata, N. repanda, N. rustica, N. undulata, N. accuminata, N. sylvestris and N. tabacum. No glucosides were detected in N. paniculata

glucosides, Nicotiana alata, Solanaceae, Nicotiana repanda, Nicotiana. undulata, Nicotiana accuminata, Nicotiana sylvestris, Nicotiana paniculata, Nicotiana tabacum, ionone-related compounds

Publication DOI: 10.1016/S0031-9422(00)80386-6
Journal NLM ID: 0151434
Publisher: Elsevier
Institutions: Central Research Institute, The Japan Tobacco and Salt Public Corporation, Yokohama, Japan
Methods: 1H NMR, EI-MS, GC, HPLC, enzymatic digestion, extraction, CC, evaporation

A novel glycoside (4S*,5R*)-4-[(9Z)-2,13-di-(O-2b-D-glucopyranosyl)- 5,9,10-trimethyl-8-oxo-9-tetradecene-5-yl]-3,3,5-trimethylcyclohexanone, namely stenopaluside, and a new cerebroside, 1-O-β-D-glucopyranosyl- (2S*,3R*,4E,8Z)-2-N-[(2R)-hydroxytetracosanoyl]octadecasphinga-4,8-dienine, were isolated from the leaves of Stenochlaena palustris, along with four known natural products, 3-oxo-4,5-dihydro-α-ionyl β-D-glucopyranoside, 3- formylindole, lutein, and β-sitosterol-3-O-β-D-glucopyranoside. The structures of the isolates were elucidated by spectroscopic and chemical methods.

glycoside, cerebroside, leaves, Pteridaceae, Stenochlaena palustris, stenopaluside, 3-oxo-4, 5-dihydro-a-ionyl b-D-glucopyranoside, 3-formylindole

Publication DOI: 10.1016/S0031-9422(98)00352-5
Journal NLM ID: 0151434
Publisher: Elsevier
Institutions: Department of Pharmacy, Swiss Federal Institute of Technology, Zürich, Switzerland, PNG Biodiversity Research PTY Ltd., Port Moresby, Papua New Guinea
Methods: 13C NMR, 1H NMR, EI-MS, methylation, IR, FAB-MS, TLC, UV, extraction, optical rotation measurement, ROESY, TOCSY, CC, DQF-COSY, HMBC, HMQC, DEPT

Repeated fractionation of an aqueous ethanol extract of the whole herb of Wahlenbergia marginata afforded six ionone-related and five phenylpropanoid-derived glycosides. The structures of the five new compounds were established by spectroscopic and chemical methods as 3,5,5-trimethyl-4- (2'-β-D-glucopyranosyloxy)ethyl-cyclohexa-2-en-1-one, demethyl syringin, wahlenosides A, B and C, respectively. All constituents were not active against the human pathogenic fungi Candida albican, Trichoderma viride and Aspergillus flavus.

glycosides, B and C, Campanulaceae, demethyl syringin, ionone analogs, normegastigmane glucose, phenylpropanoid derivatives, Wahlenbergia marginata, wahlenoside A

Publication DOI: 10.1016/S0031-9422(97)00928-X
Journal NLM ID: 0151434
Publisher: Elsevier
Institutions: Institute of Biotechnology, Department of Biological Science and Technology, Nanjing, China
Methods: 13C NMR, 1H NMR, gel filtration, IR, FAB-MS, HPLC, extraction, optical rotation measurement, CC, DEPT