申请人:Roemmele Renee Caroline
公开号:US20120270840A1
公开(公告)日:2012-10-25
The invention provides boronic esters of Formula I
wherein R
1
, R
2
, R
3
, and R
4
are as described herein, and methods for the preparation and purification thereof.
本发明提供了式I的硼酸酯,其中R1、R2、R3和R4的描述如下,以及其制备和纯化方法。