BOURGUIGNON, JEAN-JACQUES;WERMUTH, CAMILLE GEORGES;WORMS, PAUL
作者:BOURGUIGNON, JEAN-JACQUES、WERMUTH, CAMILLE GEORGES、WORMS, PAUL
DOI:——
日期:——
US4910199A
申请人:——
公开号:US4910199A
公开(公告)日:1990-03-20
Imidazo[1,2-]pyridazines for cortical cholinergic deficiencies
申请人:Sanofi
公开号:US04910199A1
公开(公告)日:1990-03-20
The present invention relates to imidazo[1,2-b]-pyridazines having the formula: ##STR1## in which: R.sub.1 represents hydrogen, a halogen atom, a C.sub.1 -C.sub.4 alkoxy group or a C.sub.1 -C.sub.4 alkyl group occupying one of the free positions of the benzene ring; R.sub.2 represents hydrogen, a C.sub.1 -C.sub.4 alkyl group or a phenyl group; R.sub.3 denotes hydrogen, a C.sub.1 -C.sub.4 alkyl group or a phenyl group; and R.sub.4 R.sub.5 represent hydrogen or a C.sub.1 -C.sub.4 alkyl group, or R.sub.4 and R.sub.5 form, together with the nitrogen atom to which they are bonded, a 5-membered or 6-membered heterocycle optionally containing a second heteroatom. Application: drugs, especially for the treatment of cortical cholinergic deficiencies.