A compound represented by the following general formula (1) :
wherein R1 represents a halogen atom, R2 represents hydrogen atom or a lower alkyl group, and R3 represents hydrogen atom, a lower alkyl group, a lower alkoxyl group, a hydroxy lower alkyl group, a halogen atom, or a substituted or unsubstituted amino group, wherein a substituent on the amino group is selected from the group consisting of a lower alkyl group, a lower alkenyl group, a lower alkylcarbonyl group, and an amino protective group, or a salt thereof. The compound of the present invention or a salt thereof is useful as an active ingredient of medicaments for preventive and/or therapeutic treatment of conditions of irritable bowel syndrome and digestive tract functional disorder, or condition of diarrhea.
由以下通式(1)代表的化合物:
其中 R1 代表卤素原子,R2 代表氢原子或低级烷基,R3 代表氢原子、低级烷基、低级烷氧基、羟基低级烷基、卤素原子或取代或未取代的
氨基,其中
氨基上的取代基选自由低级烷基、低级烯基、低级烷羰基和
氨基保护基组成的组,或其盐。本发明的化合物或其盐可作为预防和/或治疗肠易激综合征和消化道功能紊乱或腹泻的药物活性成分。