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公开(公告)号:US4395423A
公开(公告)日:1983-07-26
申请号:US100983
申请日:1979-12-06
申请人: Helmut C. Neumann
发明人: Helmut C. Neumann
IPC分类号: C07D261/20 , C07C121/48 , A61K31/275
CPC分类号: C07D261/20 , Y10S514/926 , Y10S514/927
摘要: (18.beta. and 18.alpha.)-2.alpha.-Cyano-3,11-dioxo-olean-12-en-29-oic acids and lower-alkyl esters thereof, useful as ulcer preventing and ulcer healing agents, are prepared from 18.beta.- or 18.alpha.-glycyrrhetinic acid, the final step being alkaline cleavage of 18.beta.- or 18.alpha.-11-oxo-olean-2,12-dieno[2,3-d]isoxazol-29-oic acid or an ester thereof.
摘要翻译: (18β和18α)-2α-链烷酰基-3,11-二氧代 - 烯烃-12-烯-29-酸及其低级烷基酯,其可用作预防溃疡和溃疡愈合剂,由18β - 或18α-甘草次酸,最后一步是18β-或18α-11-氧代 - 油an -2,12-二烯[2,3-d]异恶唑-29-酸或其酯的碱切割 。