Constituents of Chinese Crude Drug"Wujiapi". VI. Studies on the Aglycones of Steroidal Glycosides of Bei-Wujiapi (2)
- 1 January 1972
- journal article
- Published by Pharmaceutical Society of Japan in CHEMICAL & PHARMACEUTICAL BULLETIN
- Vol. 20 (9) , 1869-1873
- https://doi.org/10.1248/cpb.20.1869
Abstract
The steroidal aglycone which was obtained by hydrolysis of the glycosidic fraction of Chinese crude drug"Bei-Wujiapi ( ?? ?? ?? ?? )"with dilute acid was identified as 21-O-methyl-⊿5-pregnene-3β, 14β, 17β, 21-tetraol-20-one (Ia). It is very interesting that the steroid having an O-methyl group at C21 was found in the natural products.Keywords
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