申请人:SANWA KAGAKU KENKYUSHO CO., LTD.
公开号:EP1595866A1
公开(公告)日:2005-11-16
The invention aims to provide a dipeptidyl peptidase IV inhibitor which is satisfactory in respect of activity, stability and safety and has an excellent action as a pharmaceutical agent. The invention is directed to a compound represented by the following general formula or a pharmaceutically acceptable salt thereof:
wherein R1 and R2 each represents hydrogen, an optionally substituted C1-6 alkyl group, or -COOR5 whereupon R5 represents hydrogen or an optionally substituted C1-6 alkyl group, or R1 and R2, together with a carbon atom to which they are bound, represent a 3- to 6-membered cycloalkyl group, R3 represents hydrogen or an optionally substituted C6-10 aryl group, R4 represents a hydrogen or a cyano group, D represents -CONR6-, -CO- or -NR6CO-, R6 represents hydrogen or an optionally substituted C1-6 alkyl group, E represents -(CH2)m- whereupon m is an integer of 1 to 3, -CH2OCH2-, or -SCH2-, n is an integer of 0 to 3, and A represents an optionally substituted bicyclic heterocyclic group or bicyclic hydrocarbon group.
本发明旨在提供一种二肽基肽酶 IV 抑制剂,该抑制剂在活性、稳定性和安全性方面都令人满意,并且作为药剂具有出色的作用。本发明涉及由以下通式代表的化合物或其药学上可接受的盐:
其中 R1 和 R2 各自代表氢、任选取代的 C1-6 烷基或 -COOR5 其中 R5 代表氢或任选取代的 C1-6 烷基,或 R1 和 R2 与它们结合的碳原子一起代表 3 至 6 元环烷基,R3 代表氢或任选取代的 C6-10 芳基、R4代表氢或氰基,D代表-CONR6-、-CO-或-NR6CO-,R6代表氢或任选取代的C1-6烷基,E代表-(CH2)m-,其中m为1至3的整数,-CH2OCH2-或-SCH2-,n为0至3的整数,A代表任选取代的双环杂环基团或双环烃基团。