申请人:Boehringer Mannheim G.m.b.H.
公开号:US03989832A1
公开(公告)日:1976-11-02
Nitroimidazolyl-s-triazolo[4,3-b]pyridazines of the formula: ##SPC1## Wherein R is hydrogen or lower alkyl optionally substituted in the 2-position by hydroxyl or by lower acyloxy or lower alkoxy; A is hydrogen, halogen, azido, cyano; lower alkyl, alkoxy, alkylthio, alkylsulfonyl, carboxyl; lower alkoxycarbonyl, lower alkoxycarbonimidoyl; or hydrazino, carbamoyl, amidino or a carboximidohydrazide group optionally substituted by one or two lower acyl, alkyl or cycloalkyl radicals; or A is a radical of the formula: ##EQU1## wherein R.sub.1 and R.sub.2 are, individually, hydrogen or a number of organic radicals or, taken together, can be an alkylene bridge; and R.sub.3 is hydrogen or lower alkyl; or, together with R.sub.2, R.sub.3 can form an alkylene bridge; n is 0 or 1; And the pharmaceutically compatible thereof, possess high in vivo effectiveness as antimicrobials.
化学式为:##SPC1## 其中R为氢原子或取代于2位的低碳基,所述取代基可以是羟基、低酰氧基或低烷氧基;A为氢原子、卤素、叠氮基、氰基、低碳基、烷氧基、烷硫基、烷基磺酰基、羧基、低烷氧羰基、低烷氧基亚氨基甲酰基、或者是氮杂环庚烷基、氨基甲酰基、氨基甲酸酰基或者是一个羧基亚氨基甲酰基,所述基团可以取代一个或两个低酰基、烷基或环烷基基团;或者A为式中的基团:##EQU1## 其中R.sub.1和R.sub.2为独立的氢原子或有机基团,或者同时作为烷基桥;R.sub.3为氢原子或低碳基;或者R.sub.2和R.sub.3一起形成一个烷基桥;n为0或1;以及其药物相容物,具有高效的抗微生物作用。