| Literature DB >> 8729461 |
S X Qiu1, S Q Luo, L Z Lin, G A Cordell.
Abstract
Two new polyoxypregnanes, designated marstenacigenins A and B, along with a known compound, dresgenin, were isolated from the mild acid hydrolysate of the ethanol extract of the stems of Marsdenia tenacissima. Their structures were deduced by a combination of 1D and 2D NMR spectroscopic techniques as 12 beta-cinnamoyl-dihydrosarcostin and 12 beta,20-dibenzoyldihydrosarcostin, respectively.Entities:
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Year: 1996 PMID： 8729461 DOI： 10.1016/0031-9422(95)00770-9
Source DB: PubMed Journal: Phytochemistry ISSN： 0031-9422 Impact factor: 4.072