申请人:Boehringer Mannheim GmbH
公开号:US04425360A1
公开(公告)日:1984-01-10
The present invention provides pyruvic acid oximes of the general formula: ##STR1## wherein R is a hydrogen atom, a C.sub.3 -C.sub.8 cycloalkyl, C.sub.1 -C.sub.6 alkoxy, cinnamyloxy, phenylamino, phenyl-N-alkylamino or phenylthio radical or an aryl or aryloxy radical, the aryl moiety of which can be substituted one or more times by C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, halogen, hydroxyl, trifluoromethyl, amino, acetylamino, nitrile, nitro or methylenedioxy, A is a straight-chained or branched, saturated or unsaturated aliphatic hydrocarbon chain containing up to 10 carbon atoms, which can be substituted one or more times by halogen or hydroxyl, and R.sub.1 is a C.sub.1 -C.sub.8 alkyl radical, which can be substituted one or more times by halogen, hydroxyl, nitrile, phenyl or carboxyl, or is a nitrile or formyl group, with the proviso that when R--A-- is a methyl or ethyl radical, R.sub.1 is not a methyl radical or a nitrile group and when R--A-- is a benzyl radical, R.sub.1 is not a methyl or benzyl radical; and the physiologically acceptable salts, carboxylic acid esters and amides thereof. The invention also provides processes for the preparation of these compounds pharmaceutical compositions containing them, and their use in combating hypoglycaemia.
本发明提供了一般式为:##STR1##的丙酮酸肟,其中R是氢原子,C.sub.3-C.sub.8 环烷基,C.sub.1-C.sub.6 烷氧基,肉桂氧基,苯氨基,苯基-N-烷基氨基或苯硫基基或芳基或芳氧基基,其芳基部分可以被C.sub.1-C.sub.6 烷基,C.sub.1-C.sub.6 烷氧基,卤素,羟基,三氟甲基,氨基,乙酰氨基,腈基,硝基或亚甲二氧基取代一次或多次,A是一条直链或支链,饱和或不饱和的脂肪族碳氢链,含有最多10个碳原子,可以被卤素或羟基取代一次或多次,R.sub.1是一个C.sub.1-C.sub.8 烷基基,可以被卤素,羟基,腈基,苯基或羧基取代一次或多次,或者是一个腈基或甲酰基基团,但当R-A-是甲基或乙基基团时,R.sub.1不是甲基基团或腈基,当R-A-是苄基基团时,R.sub.1不是甲基或苄基基团;以及其在生理上可接受的盐,羧酸酯和酰胺。本发明还提供了制备这些化合物的方法,含有它们的制药组合物,并在对抗低血糖方面的应用。