Androstane and pregnane 2 beta,19-hemiketal steroids from Trichilia claussenii
Androstane and pregnane 2 beta,19-hemiketal steroids from Trichilia claussenii
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DOI:
10.1016/s0031-9422(97)00167-2
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发表时间:
1997-08-01
期刊:
影响因子:
3.8
通讯作者:
Fo, EF
中科院分区:
文献类型:
--
作者:
Pupo, MT;Vieira, PC;Fo, EF
The methanol extract of stems of Trichilia claussenii yielded three new steroids: 2 alpha,3 alpha-dihydroxyandrostan-16-one 2 beta,19-hemiketal, 2 alpha,3 beta-dihydroxypregnan-16-one 2 beta,19-hemiketal, 2 beta,3 beta-dihydroxypregnan-16-one. Two known steroids 2 beta,3 beta,4 beta-trihydroxypregnan-16-one, 2 alpha,3 alpha,4 beta-trihydroxypregnan-16-one and a mixture of sitosterol and stigmasterol beta-O-D-glucopyranosides were also isolated. The structures of the isolated compounds were determined on the basis of spectroscopic analysis. (C) Elsevier Science Ltd. All rights reserved.