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Pregnanes and pregnane glycosides from Hoya carnosa
1Faculty of Pharmaceutical Sciences, Fukuoka University, Japan.
Chemical & Pharmaceutical Bulletin
|September 9, 1999
Abstract:
Eleven pregnanes were isolated from the hydrolysate of the CHCl3 extract fractionated from the caules of Hoya carnosa. Among these, six pregnanes, including 19-acetoxydigipurpurogenin II, were new, and their structures were elucidated. The structures of twenty new pregnane tetraosides and pentaosides, named hoyacarnosides A-T, besides three known ones from the CHCl3 extract, were determined.