申请人:F. HOFFMANN-LA ROCHE AG
公开号:EP0974590A1
公开(公告)日:2000-01-26
The present invention relates to a process for the preparation of compounds of formula I
wherein R1 and R2 are as defined in the specification as well as to the novel intermediates obtained by said process.
本发明涉及一种制备式 I 化合物的工艺,其中 R1 和 R2 如说明书中所定义。
其中 R1 和 R2 如说明书中所定义,以及通过上述工艺获得的新型中间体。