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.
本发明涉及具有以下结构式的咪唑并[1,2-b]-吡啶嘧啶化合物:其中:R.sub.1代表氢、卤素原子、C.sub.1-C.sub.4烷氧基或C.sub.1-C.sub.4烷基,占据苯环的一个自由位置;R.sub.2代表氢、C.sub.1-C.sub.4烷基或苯基;R.sub.3代表氢、C.sub.1-C.sub.4烷基或苯基;R.sub.4和R.sub.5代表氢或C.sub.1-C.sub.4烷基,或者R.sub.4和R.sub.5与它们连接的氮原子一起形成一个含有第二杂原子的5元环或6元环。应用:药物,特别用于治疗皮质胆碱缺乏症。