申请人:Miyaji Katsuaki
公开号:US20090118500A1
公开(公告)日:2009-05-07
A compound represented by the formula (I) (wherein R
1
, R
2
, R
3
and R
4
are as defined in the description), a tautomer, prodrug or pharmaceutically acceptable salt of the compound or a solvate thereof.
化合物的化学式为(I)(其中R1,R2,R3和R4的定义见说明),该化合物的互变异构体、前药或药物可接受的盐或其溶剂化物。