发明授权
US5200415A Pyrazolo[1,5-a]pyridine-3-carboxylic acid derivatives and their pharmaceutical use 失效
吡咯并(1,5-A)吡啶-3-羧酸衍生物及其药物用途

Pyrazolo[1,5-a]pyridine-3-carboxylic acid derivatives and their
pharmaceutical use
摘要:
Described herein are pyrazolo[1,5-a]pyridine-3-carboxylic acid derivatives represented by the following formula (I): ##STR1## wherein R.sub.1 and R.sub.2 individually mean a hydrogen atom or a lower alkyl group, R.sub.3 denotes an azabicyclo group containing a tertiary nitrogen atom, and Y stands for --O-- or --NH--, or salts thereof. Their preparation process and serotonin receptor antagonists containing them as active ingredients are also described.
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