Two New Triterpenoids from Gelsemium Elegans and Aglaia odorata
نویسندگان
چکیده
منابع مشابه
Two new triterpenoids from Gelsemium elegans and Aglaia odorata.
Eleganoside A (1) and odoratanone A (15), a triterpenoid trisaccharide glycoside and a nortriterpenoid, together with twelve known compounds (2-13) and a mixture of cerebrosides (14) were isolated from Gelsemium elegans and Aglaia odorata. Their structures were elucidated by extensive spectroscopic and spectrometric analysis. Eleganoside A (1) features a 3-O-alpha-L-rhamnopyranosyl (1-->4)-beta...
متن کاملTwo new koumine-type indole alkaloids from Gelsemium elegans Benth.
Two new indole alkaloids, 21-oxokoumine (1) and furanokoumine (2), were isolated from the roots of Gelsemium elegans Benth together with three known compounds. The structures of the two novel compounds were elucidated by spectroscopic methods, including NMR, HR-ESI-MS, UV, IR, CD and molecular modeling. Compound 1 is the first instance of a koumine-type alkaloid with a carbonyl at the C-21 posi...
متن کاملNew Insecticidal Rocaglamide Derivatives from Flowers of Aglaia odorata
a Julius-von-Sachs-Institut für Biowissenschaften, Lehrstuhl für Pharmazeutische Biologie, Universität Würzburg, Mittlerer Dallenbergweg 64, D -97082 Würzburg, Fax: 0049 931 8 8 8 6182, Bundesrepublik Deutschland b Gesellschaft für Biotechnologische Forschung mbH, M ascheroder Weg 1, D-38124 Braunschweig.Bundesrepublik Deutschland c Institut für Pharmazeutische Biologie, Technische Universität ...
متن کاملGelsemium alkaloids, immunosuppressive agents from Gelsemium elegans.
Bioassay-guided isolation of the stems of Gelsemium elegans has led to the isolation of two new Gelsemium alkaloids, 21-(2-oxopropyl)-koumine (1) and 11-methoxygelselegine (2), and two known alkaloids, koumine (3) and gelselegine (4). The structures of 1-2 were determined by spectroscopic (for both) and single-crystal X-ray diffraction (for 1) analysis. All compounds isolated were evaluated for...
متن کاملCancer chemopreventive activity of odorine and odorinol from Aglaia odorata.
In the course of our continuing search for novel cancer chemo-preventive agents from natural sources, we have carried out a primary screening in vitro assay of the compounds isolated from Aglaia odorata. Consequently, aminopyrrolidine-diamides, odorine and odorinol, were obtained as active constituents. These compounds exhibited potent anti-carcinogenic effects in a two-stage carcinogenesis tes...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Natural Product Communications
سال: 2013
ISSN: 1934-578X,1555-9475
DOI: 10.1177/1934578x1300801008