申请人:SMITH KLINE & FRENCH LABORATORIES
LIMITED
公开号:EP0134091A1
公开(公告)日:1985-03-13
The present invention provides compounds of formula (2):
and their pharmaceutically acceptable salts which are useful as histamine H,-antagonists. In formula (2)
Hal is a halogen atom;
R5 is an amino group or an pharmaceutically acceptable derivative thereof convertible in vivo to amino;
R6 is a C1-3 alkylene group; and
R7 is 3-pyridyl, N-oxo-3-pyridyl; 6-methyl-3-pyridyl; N-oxo-6-methyl-3-pyridyl; 6-hydroxymethyl-3-pyridyl; 4,6-dimethyl-3-pyridyl; N-oxo-4,6-dimethyl-3-pyridyl; 6-hydroxymethyl-4-methyl-3-pyridyl; 5,6-dimethyl-3-pyridyl; N-oxo-5,6-dimethyl-3-pyridyl; 6-hydroxy-methyl-5-methyl-3-pyridyl; 4-pyridyl or N-oxo-4-pyridyl.
本发明提供了可用作组胺 H-拮抗剂的式 (2):
及其药学上可接受的盐类,可用作组胺 H拮抗剂。式(2)中
Hal 是卤素原子;
R5 是氨基或可在体内转化为氨基的药学上可接受的衍生物;
R6 是 C1-3 烷基;以及
R7 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、6-羟甲基-3-吡啶基、4,6-二甲基-3-吡啶基、N-氧代-4,6-二甲基-3-吡啶基;6-羟甲基-4-甲基-3-吡啶基;5,6-二甲基-3-吡啶基;N-氧代-5,6-二甲基-3-吡啶基;6-羟甲基-5-甲基-3-吡啶基;4-吡啶基或 N-氧代-4-吡啶基。