申请人:BANYU PHARMACEUTICAL CO., LTD.
公开号:EP2116543A1
公开(公告)日:2009-11-11
The present invention relates to a compound represented by Formula [I]:
or a pharmaceutically acceptable salt or ester thereof, wherein R1 and R2, which may be the same or different, are each a hydrogen atom, a lower alkyl group, a cycloalkyl group, or the like; R3 and R4, which may be the same or different, are each a hydrogen atom, a lower alkyl group, NRaRb, a phenyl group, a lower alkyl group substituted with a phenyl group, a 4- to 7-membered aliphatic heterocyclic group, a lower alkyl group substituted with a 4- to 7-membered aliphatic heterocyclic group, a 5- or 6-membered aromatic heterocyclic group, a lower alkyl group substituted with a 5- or 6-membered aromatic heterocyclic group, or the like; and R5 is a hydrogen atom, a cyano group, a halogen atom, or a lower alkyl group.
本发明涉及一种由式 [I] 表示的化合物:
或其药学上可接受的盐或酯,其中R1和R2可以相同或不同,各自为氢原子、低级烷基、环烷基或类似物;R3 和 R4(可以相同或不同)各自是氢原子、低级烷基、NRaRb、苯基、被苯基取代的低级烷基、4-7 元脂肪杂环基、被 4-7 元脂肪杂环基取代的低级烷基、5-或 6 元芳香杂环基、被 5-6 元芳香杂环基取代的低级烷基或类似基团;R5 是氢原子、氰基、卤素原子或低级烷基。