D-Homo oxasteroids and processes for their preparation, which can be used as anti-inflammatory agents, the steroids having the formula
or the 1,2-dehydro derivative thereof; wherein R, is hydrogen,
halogen or hydroxy; R2 is hydrogen or alkyl; R, is alkyl; R. is carbonyl, β-hydroxymethylene, β-chloromethylene or β-bromomethylene; R5 is hydrogen, fluorine, chlorine or bromine; R6 is hydrogen, fluorine or methyl; and R7 is hydrogen, chlorine or bromine; with the proviso that when R is hydroxy, R2 is alkyl; and with the further proviso that when R2 is alkyl, it is the same alkyl group as R3; wherein aryl is phenyl or phenyl substituted with one or two alkyl, alkoxy or halogen groups; and alkyl and alkoxy are groups having 1 to 10 carbon atoms.
可用作消炎药的 D-类
固醇及其制备方法,这些类
固醇具有以下式子
或其 1,2-脱氢衍
生物;其中 R 为氢、
为氢、卤素或羟基;R2 为氢或烷基;R, 为烷基;R.是羰基、β-羟甲基、β-
氯亚甲基或β-
溴亚甲基;R5 是氢、
氟、
氯或
溴;R6 是氢、
氟或甲基;R7 是氢、
氯或
溴;但当 R 是羟基时,R2 是烷基;其中芳基是苯基或被一个或两个烷基、烷氧基或卤素取代的苯基;烷基和烷氧基是具有 1 至 10 个碳原子的基团。