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A new phytosterone from Cyanotis arachnoidea
Cheng-Yu Tan1, Jin-Hui Wang, Hui Zhang
1Research Department of Natural Medicine, Shenyang Pharmaceutical University, China.
Journal of Asian Natural Products Research
|May 7, 2002
Abstract:
From Cyanotis arachnoidea C.B. Clarke, a new phytosterone named cyanosterone A (1), along with three known compounds--beta-ecdysone (2), ajugasterone C (3) and beta-sitosterol (4) were isolated. The structure of the new compound was determined as 3beta,14alpha,20R,22R-tetrahydroxy-5alpha-cholest-7-en-6-one on the basis of physicochemical properties and spectral analysis.