申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0403882A2
公开(公告)日:1990-12-27
A compound of the formula :
wherein
R1 is lower alkyl and
R2 and R3 are each hydrogen, lower alkyl or linked together to form a bond; or
R1 and R2 are linked together to form lower alkylene and
R3 is hydrogen, and
R4 is azabicyclo(C5-Cl2)alkyl(lower)alkyl or its N-oxide, each of which may be substituted by lower alkyl, provided that R4 is N-oxide of azabicyclo(C5-C12(lower)alkyl, which may be substituted by lower alkyl when R1 is lower alkyl and R2 and R3 are each hydrogen or lower alkyl,
and pharmaceutically acceptable salt thereof,
processes for their preparation and pharmaceutical compositions comprising them as active ingredient in association with a pharmaceutically acceptable carrier or excipient.
式中的化合物
式中
R1 是低级烷基
R2 和 R3 分别为氢、低级烷基或连接在一起形成键;或
R1 和 R2 连接在一起形成低级亚烷基,且
R3 为氢,以及
R4 是氮杂双环(C5-Cl2)烷基(低级)烷基或其 N-氧化物,其中每个可被低级烷基取代,条件是 R4 是氮杂双环(C5-C12(低级)烷基的 N-氧化物,当 R1 是低级烷基且 R2 和 R3 各为氢或低级烷基时,该氮杂双环(C5-C12(低级)烷基可被低级烷基取代、
及其药学上可接受的盐、
它们的制备工艺以及由它们作为活性成分与药学上可接受的载体或赋形剂组成的药物组合物。