申请人:SANKYO COMPANY LIMITED
公开号:EP0742218A1
公开(公告)日:1996-11-13
Pyrrolopyridazine derivatives having the general formula.
[In the above formula, R1 represents a C2-C6 alkenyl group, a halogeno-C2-C6-alkenyl group, a C6-C10 aryl-C2-C6-alkenyl group, a C2-C6 alkynyl group, a C3-C7 cycloalkyl group, a C3-C7 cycloalkyl-C1-C6-alkyl group, a C5-C7 cycloalkenyl-C1-C6-alkyl group or a halogeno-C1-C6-alkyl group; R2 and R3 are the same or different and each represents a hydrogen atom, a C1-C6 alkyl group or a C6-C10 aryl group; R4 represents a hydrogen atom or a C1-C6 alkyl group; R5 represents a C6-C10 aryl group or a 5-10 membered heteroaryl group comtaining heteroatom(s) selected from nitrogen, oxygen and sulfur;
A represents a C1-C3 alkylene group; X represents an imino group, an oxygen atom, a sulfur atom or a methylene group; m represents 0 or 1; and n represents 0 or 1]
or pharmaceutically acceptable salts thereof.
[Effect]
The pyrrolopyridazine derivatives of the present invention have an excellent gastric secretion inhibiting activity, gastric mucosa protective activity and antibacterial activity against Helicobacter pylori, and are useful as a preventive or therapeutic agent for ulcerous diseases.
具有通式的吡咯哒嗪衍生物。
[在上式中,R1 代表 C2-C6 烯基、卤代-C2-C6-烯基、C6-C10 芳基-C2-C6-烯基、C2-C6 炔基、C3-C7 环烷基、C3-C7 环烷基-C1-C6-烷基、C5-C7 环烯基-C1-C6-烷基或卤代-C1-C6-烷基;R2 和 R3 相同或不同,各自代表氢原子、C1-C6 烷基或 C6-C10 芳基;R4 代表氢原子或 C1-C6 烷基;R5 代表 C6-C10 芳基或含有选自氮、氧和硫的杂原子的 5-10 位杂芳基;
A代表C1-C3亚烷基;X代表亚氨基、氧原子、硫原子或亚甲基;m代表0或1;n代表0或1]。
或其药学上可接受的盐类。
效果
本发明的吡咯哒嗪衍生物具有良好的胃分泌抑制活性、胃黏膜保护活性和幽门螺旋杆菌抗菌活性,可作为溃疡病的预防或治疗剂。