申请人:——
公开号:US20030096853A1
公开(公告)日:2003-05-22
Provided are processes for the preparation of the compound of the formula
1
wherein R
1
, R
3
and R
4
are independently selected from the group consisting of hydrogen, halogen, hydroxyl, nitro, lower alkyl, lower alkoxy, carboxy, C
1
-C
6
trihaloalkyl, and cyano, and R is amino or lower alkyl
Also provided are synthetic intermediates that are useful as intermediates in the preparation of the compound of the formula 1.
提供了制备式1化合物的过程,其中R1、R3和R4分别独立地选自氢、卤素、羟基、硝基、低烷基、低烷氧基、羧基、C1-C6三卤代烷基和氰基等基团,R为氨基或低烷基。还提供了用作制备式1化合物的合成中间体。