申请人:SMITH KLINE & FRENCH LABORATORIES
LIMITED
公开号:EP0068834A2
公开(公告)日:1983-01-05
The present invention provides compounds of formula (II):
and their pharmaceutically acceptable salts which are useful as histamine H1-antagonists. In formula (II) R1 is C1-4 alkyl, and R2 is C3-4 alkoxy, halogen. oramino: R3 is a C1-3 alkylene group: and R4 is a 3-pyridyi. N-oxo-3-pyridyl, 6-methyl-3-pyridyl, N-oxo-6-methyl-3-pyridyl or 6-hydroxymethyl-3-pyridyl group.
本发明提供了式(II)化合物:及其药学上可接受的盐,可用作组胺H1-拮抗剂。 在式(II)中,R1是C1-4烷基,R2是C3-4烷氧基、卤素或氨基:R3是C1-3亚烷基:R4是3-吡啶基、N-氧代-3-吡啶基、6-甲基-3-吡啶基、N-氧代-6-甲基-3-吡啶基或6-羟甲基-3-吡啶基。