Quinuclidyl- and tropanyl-pyridyl ethers as 5-HT3 receptor antagonists

摘要

Pyridyl ethers of formula <IMAGE> (II) [where R is hydrogen, or 1 to 4 hydroxy, alkyl, alkoxy, amino, alkylamino, dialkylamino, halogen, trifluoromethyl, phenyl, halophenyl, alkyphenyl, alkoxyphenyl, carboxy, carboxamide, nitro, thiol or alkylthio substituents and B is quinuclidyl or tyopanyl] are useful for the treatment of conditions which respond to antagonism of 5 - HT3 receptors e.g. the treatment of migraine, emesis, anxiety, gastro-intestinal disorders and psychotic disorders.