Combating bacteria with nitroimidazolyl-triazolo-pyridiazine compounds
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.