申请人:Takeda Pharmaceutical Company Limited
公开号:US08334301B2
公开(公告)日:2012-12-18
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.
提供的是一种具有优异的酸分泌抑制作用,表现出抗溃疡活性等的化合物。该化合物的结构式(I)或其盐:其中,环A是一个饱和或不饱和的5元杂环,除了碳原子外,还包含至少一个氮原子、一个氧原子和一个硫原子等杂原子,环构成原子X1和X2相同或不同,分别为C或N,环构成原子X3和X4相同或不同,分别为C、N、O或S(但不包括X1为N的吡咯环),当环构成原子X3或X4为C或N时,每个环构成原子可选地具有取代基,所选的取代基包括可选取代的烷基、酰基、可选取代的羟基、可选取代的硫醇基、可选取代的氨基、卤素、氰基和硝基;R1和R2各自是一个环状基团,可选地具有取代基;R3和R4各自是氢或烷基,或者R3和R4与相邻的N一起形成含氮杂环;Y是一个间隔基团。