A NEW METHOD OF CONSTRUCTION OF THE 20-ISOSTEROID SIDE-CHAIN

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KHRIPACH, VA
LITVINOVSKAYA, RP
BARANOVSKY, AV
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BIOORGANICHESKAYA KHIMIYA | 1992年 / 18卷 / 07期
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摘要：
A stereoselective method for the 20-isosteroid side chain construction has been developer. (20R)-20-isoxazolylsteroids were obtained unexpectedly from (20R)-20-hydroxy-20-isoxazotinylsteroids upon treatment with trifluoroacetic acid and lithium perchlorate in nitromethane. The hydrogenation of the isoxazolylsteroids gave 20-isosteroids with the open side chain.
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页码：964 / 968
页数：5
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