A compound of formula (I) or a pharmaceutically acceptable salt thereof:
in which one of X and Y represents hydrogen and the other represents Z, where Z is a group
in which Q represents a 3-membered divalent residue completing a 5-membered aromatic ring and comprises two or three nitrogen atoms, any amino nitrogen being substituted by a C1-2 alkyl, cyclopropyl or propargyl group, r represents an integer of 2 or 3, s represents an integer of 1 or 2 and t represents 0 or 1, with the proviso that when Y is hydrogen s is 1.
式 (I) 的化合物或其药学上可接受的盐:
其中 X 和 Y 的一个代表氢,另一个代表 Z,其中 Z 是一个基团
其中 Q 代表完成五元芳香环的三元二价残基,包含两个或三个氮原子,任何
氨基氮均被 C1-2 烷基、环丙基或
丙炔基取代,r 代表 2 或 3 的整数,s 代表 1 或 2 的整数,t 代表 0 或 1,但当 Y 为氢时,s 为 1。