申请人:Takeda Pharmaceutical Company Limited
公开号:EP2196459A1
公开(公告)日:2010-06-16
Provided is a compound having a superior acid secretion suppressive action, which shows an antiulcer activity and the like.
A compound represented by the formula (I) or a salt thereof:
wherein ring A is a saturated or unsaturated 5-membered heterocycle containing, as a ring-constituting atom besides carbon atoms, at least one heteroatom selected from a nitrogen atom, an oxygen atom and a sulfur atom, the ring-constituting atoms X1 and X2 are the same or different and each is C or N, the ring-constituting atoms X3 and X4 are the same or different and each is C, N, O or S (provided that a pyrrole ring wherein X1 is N is excluded from ring A), and when the ring-constituting atom X3 or X4 is C or N, each ring-constituting atom optionally has substituent(s) selected from an optionally substituted alkyl, an acyl, an optionally substituted hydroxy, an optionally substituted mercapto, an optionally substituted amino, a halogen, a cyano and a nitro;
R1 and R2 are each a cyclic group optionally having substituent(s); R3 and R4 are each H or alkyl, or R3 and R4 form, together with the adjacent N, an nitrogen-containing heterocycle; and Y is a spacer.
本发明提供了一种化合物,它具有优异的抑制胃酸分泌的作用,并显示出抗溃疡活性等。
由式(I)代表的化合物或其盐:
其中,环 A 是饱和或不饱和的五元杂环,除碳原子外,还含有至少一个杂原子,该杂原子选自氮原子、氧原子和硫原子;成环原子 X1 和 X2 相同或不同,且各自为 C 或 N;成环原子 X3 和 X4 相同或不同,且各自为 C、N、当构环原子 X3 或 X4 为 C 或 N 时,每个构环原子可选择具有选自任选取代的烷基、酰基、任选取代的羟基、任选取代的巯基、任选取代的氨基、卤素、氰基和硝基的取代基;
R1 和 R2 分别是任选具有取代基的环状基团;R3 和 R4 分别是 H 或烷基,或 R3 和 R4 与相邻的 N 形成含氮杂环;以及 Y 是间隔物。