A piperazine derivative represented by the formula (1):
wherein n is an integer of 1 to 8; R
1
represents hydrogen or C
1-10
alkyl; A represents CH or nitrogen; Ar
1
represents phenyl or substituted phenyl; and Y represents a group represented by the formula Y
1
-Y
2
-Ar
2
or Y
3
-Y
4
(Ar
5
)-Ar
6
or a pharmaceutically acceptable salt of the derivative. The novel piperazine derivative has MC4 receptor antagonistic activity.
一种由式(1)表示的
哌嗪衍
生物:
其中n为1至8的整数;R1表示
氢或C1-10烷基;A表示CH或
氮;Ar1表示
苯基或取代
苯基;Y表示由式Y1-Y2-Ar2或Y3-Y4(Ar5)-Ar6表示的基团,或该衍
生物的药学上可接受的盐。该新型
哌嗪衍
生物具有
MC4受体拮抗活性。