申请人:Ciba-Geigy Corporation
公开号:US05169867A1
公开(公告)日:1992-12-08
Compounds of formula ##STR1## wherein R.sub.1 is amino or is a radical ##STR2## wherein R.sub.3 is lower alkyl, hydroxy-lower alkyl, lower alkoxy-lower alkyl, carboxy, lower alkoxycarbonyl, phenyl, phenyl substituted by lower alkyl, halo-lower alkyl, hydroxy-lower alkyl, halogen, hydroxy, lower alkoxy, lower alkanoyloxy and/or by nitro, pyridyl, pyridyl substituted by lower alkyl, hydroxy-lower alkyl, lower alkoxy-lower alkyl, phosphonooxy-lower alkyl, lower alkanoyl, carboxy, lower alkoxycarbonyl, hydroxy, lower alkoxy, lower alkanoyloxy, nitro and/or by oxido, or quinolyl, R.sub.4 is hydrogen, lower alkyl, hydroxy-lower alkyl or halo-lower alkyl, or R.sub.3 and R.sub.4 together are C.sub.4 -C.sub.6 alkylene or benzo-C.sub.4 -C.sub.6 alkylene, and R.sub.2 is straight-chain C.sub.1 -C.sub.4 alkyl, and salts thereof, have a strong specific inhibitory action on the enzyme ornithine decarboxylase. The compounds of Formula I are prepared according to processes known per se.
式为##STR1##的化合物中,其中R.sub.1是氨基或是基团##STR2##其中R.sub.3是低碳基,羟基-低碳基,低氧基-低碳基,羧基,低氧基羰基,苯基,被低碳基,卤代-低碳基,羟基-低碳基,卤素,羟基,低氧基,低脂肪酰氧基和/或硝基,吡啶基,被低碳基,羟基-低碳基,低氧基-低碳基,膦酸氧-低碳基,低脂肪酰基,羧基,低氧基羰基,羟基,低氧基,低脂肪酰氧基,硝基和/或氧化物,或喹啉基,R.sub.4是氢,低碳基,羟基-低碳基或卤代-低碳基,或R.sub.3和R.sub.4一起是C.sub.4-C.sub.6烷基或苯并C.sub.4-C.sub.6烷基,R.sub.2是直链C.sub.1-C.sub.4烷基,及其盐,在鸟氨酸脱羧酶酶上具有强烈的特异性抑制作用。式I的化合物可按已知的方法制备。