申请人:Nakahira Hiroyuki
公开号:US20070105890A1
公开(公告)日:2007-05-10
Disclosed is a compound represented by the formula (1) below which has a high DPP-IV inhibitory activity and is improved in safety, toxicity and the like. Also disclosed is a prodrug of such a compound and pharmaceutically acceptable salts of them.
(In the formula, R
1
represents a hydrogen atom, an optionally substituted alkyl group or the like; R
2
and R
3
independently represent a hydrogen atom, an optionally substituted alkyl group or the like; R
4
and R
5
independently represent a hydrogen atom, an optionally substituted alkyl group or the like: R
6
represents a hydrogen atom, an optionally substituted aryl group or the like; and —Y—NH
2
, represents a group represented by the following formula (A):
(wherein m is 0, 1 or 2; and R
7
may not exist or one or two R
7
may exist and independently represent an optionally substituted alkyl group or the like) or the like.]
公开了一种化合物,其表示为以下式(1),具有较高的DPP-IV抑制活性并且在安全性、毒性等方面得到改善。还公开了这种化合物的前药和它们的药学上可接受的盐。(在该式中,R1表示氢原子,可选择性取代的烷基或类似物; R2和R3独立地表示氢原子,可选择性取代的烷基或类似物; R4和R5独立地表示氢原子,可选择性取代的烷基或类似物:R6表示氢原子,可选择性取代的芳基或类似物; 而—Y—NH2表示由以下式(A)表示的基团:(其中m为0、1或2;而R7可能不存在或一个或两个R7可能存在且独立地表示可选择性取代的烷基或类似物)或类似物。)