| abstract |
(57) [Summary] [Object] To provide an aryl-substituted heterocyclic compound that antagonizes the pharmacological function of the neurokinin 2 receptor and a pharmaceutical composition containing the same. A compound of formula I below or a pharmaceutically acceptable salt thereof: [Chemical 1] (In the formula, R 2 and R 3 are each hydrogen, or 2 is hydrogen and R 3 is hydroxy; R 4 is aryl or heteroaryl. ) |