A fused pyrimidine derivative is presented. The derivatie has an insulin secretion stimulating activity represented by Formula (I):
wherein R
1
represents a hydrogen atom, lower alkyl, or the like; n represents an integer of 0 to 3; and X
1
and X
2
may be the same or different and each represents a hydrogen atom, lower alkyl, or the like; and formula (II):
represents formula (III):
[wherein X—Y—Z represents R
2
C═CR
3
—NR
4
(wherein R
2
, R
3
and R
4
may be the same or different and each represents a hydrogen atom, lower alkyl, or the like)]}, or a pharmaceutically acceptable salt thereof.
提供了一种融合的
嘧啶衍
生物。该衍
生物具有由公式(I)表示的刺激
胰岛素分泌的活性:其中,R1表示氢原子,低级烷基或类似物;n表示0至3的整数;X1和X2可以相同也可以不同,每个都表示氢原子,低级烷基或类似物;公式(II):表示公式(III):[其中X—Y—Z表示R2C═CR3—NR4(其中,R2、R3和R4可以相同也可以不同,每个都表示氢原子,低级烷基或类似物)]},或其药学上可接受的盐。