申请人:Kasahara Chiyoshi
公开号:US20100063098A1
公开(公告)日:2010-03-11
A compound represented by the formula (I): wherein R
1
is lower alkyl, cycloalkyl or aromatic hydrocarbon ring, each of which is optionally substituted with one or more substituents; R
2
is hydrogen atom, halogen atom, lower alkyl, halo(lower)alkyl or lower alkoxy; and R
3
is (1) a group represented by the formula: wherein R
4
is lower alkyl, etc.; (2) a group represented by the formula: wherein R
5
is lower alkyl, etc.; (3) a group represented by the formula: wherein R
6
is lower alkyl, etc.; or (4) a group selected from halogen atom, carboxy, hydroxy and lower alkoxy, or a salt thereof.
化合物的化学式为(I):其中R1是较低的烷基,环烷基或芳香族碳氢环,每个都可以选择性地取代一个或多个取代基;R2是氢原子,卤原子,较低的烷基,卤代(较低)烷基或较低的烷氧基;R3是(1)由式子表示的基团:其中R4是较低的烷基等;(2)由式子表示的基团:其中R5是较低的烷基等;(3)由式子表示的基团:其中R6是较低的烷基等;或(4)从卤原子,羧基,羟基和较低的烷氧基中选择的基团或其盐。