A New Homotriterpene from the Roots of Marsdenia tenacissima Wight and Arn.
✍ Scribed by D. Goel; M. Ali
- Publisher
- John Wiley and Sons
- Year
- 2005
- Weight
- 9 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0931-7597
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Four new pregnane glycosides, tenacigenosides A -D (1 -4), along with six known pregnane aglycones and five known pregnane glycosides, were isolated from the stems of Marsdenia tenacissima (ROXB.) WIGHT et ARN. (Asclepiadaceae). The chemical structures of the new compounds were established by 1D-and
## Abstract Two new pregnane glycosides, (3__β__,5__α__,12__β__,14__β__,17__α__)‐3‐(__β__‐cymaropyranosyloxy)‐8,14,17,20‐tetrahydroxypregnan‐12‐yl benzoate (**1**) and (3__β__,5__α__,12__β__,14__β__,17__α__)‐3‐(__β__‐cymaropyranosyloxy)‐8,14,17,20‐tetrahydroxypregnan‐12‐yl cinnamate (**2**) were is
## Abstract Three new glycosides, (3__β__,5__α__,8__α__,11__α__,12__β__,14__β__,17__α__,20__R__)‐3‐[(2,6‐dideoxy‐4‐__O__‐(6‐deoxy‐3‐__O__‐methyl‐__β__‐D‐allopyranosyl)‐3‐__O__‐methyl‐__β__‐D‐__arabino__‐hexopyranosyl)oxy]‐12‐__O__‐tigloyl‐8,20 : 11,20‐diepoxypregnane‐12,14‐diol (**1**), (3__β__,5__
## Abstract One new triterpene and seven new eremophilane‐type sesquiterpenes were isolated from the roots of __Ligularia sagitta__, among them **1a**, an __O__‐acetylated oleanane type triterpene, **2a** and **3a**, two 11‐nor eremophilane‐type sesquiterpenes, **4a, 5**, and **6**, three standard