申请人:——
公开号:US20040180933A1
公开(公告)日:2004-09-16
The invention provides a multi-step process for preparing 1,2-diamino compounds of formula
1
wherein R
1
, R
1
′, R
2
, R
2
′, R
3
and R
4
have the meaning given in the specification and pharmaceutically acceptable addition salts thereof, from 1,2-epoxides of formula
2
wherein R
1
, R
1′, R
2
and R
2
′ have the meaning given in the specification.
这项发明提供了一种多步骤过程,用于制备式1的1,2-二氨基化合物,其中R1、R1′、R2、R2′、R3和R4具有规范中给定的含义,以及其药学上可接受的加合盐,从式2的1,2-环氧化物,其中R1、R1′、R2和R2′具有规范中给定的含义。