| abstract |
(57) [Summary] [Object] To provide a novel tricyclic compound having a cholecystokinin antagonistic activity. [Structure] A compound represented by the following general formula. [Chemical 1] X is -O-, etc., A is -CH 2 - and the like, phenyl R 1 is substituted with a halogen or the like, R 2 is hydrogen, R 3 is phenyl or the like which is substituted with an alkylthio. |