申请人:Eisai R&D Management Co., Ltd.
公开号:EP1870409A1
公开(公告)日:2007-12-26
An object of the present invention is to provide a novel chemical compound useful as a therapeutic or prophylactic agent for acid-related diseases, having an excellent inhibitory effect against gastric acid secretion, an excellent effect of maintaining the inhibitory effect against gastric acid secretion, thereby maintaining intragastric pH high for a long time, and having more safety and appropriate physicochemical stability.
Provided is a compound represented by
where R1 and R3 may be the same or different and each represent a hydrogen atom or a C1-C6 alkyl group; R2 represents (5,5-dimethyl-1,3-dioxan-2-yl)methoxy group, 5,7-dioxaspiro[2.5]oct-6-ylmethoxy group, 1,5,9-trioxaspiro[5.5]undec-3-ylmethoxy group, or (2,2-dimethyl-1,3-dioxan-5-yl)methoxy group;
R4, R5, R6 and R7 represent a hydrogen atom, halogen atom, C1-C6 alkyl group, C1-C6 haloalkyl group, C1-C6 alkoxy group or C1-C6 haloalkoxy group; and W1 represents a single bond, methylene or ethylene group,
a salt thereof or a solvate of these.
本发明的目的是提供一种可作为酸相关疾病的治疗剂或预防剂的新型化合物,该化合物对胃酸分泌具有极佳的抑制作用,对胃酸分泌的抑制作用具有极佳的维持效果,从而可长期维持胃内较高的 pH 值,并且具有更高的安全性和适当的理化稳定性。
本发明提供了一种由以下物质代表的化合物
其中 R1 和 R3 可以相同或不同,各自代表氢原子或 C1-C6 烷基;R2 代表(5,5-二甲基-1,3-二氧杂环戊烷-2-基)甲氧基、5,7-二氧杂螺[2.5]辛-6-基甲氧基、1,5,9-三氧杂螺[5.5]十一-3-基甲氧基或(2,2-二甲基-1,3-二氧杂环戊烷-5-基)甲氧基;
R4、R5、R6 和 R7 代表氢原子、卤素原子、C1-C6 烷基、C1-C6 卤代烷基、C1-C6 烷氧基或 C1-C6 卤代烷氧基;以及 W1 代表单键、亚甲基或亚乙基、
它们的盐或它们的溶液。