The present invention is directed to Compounds of Formula (I) and salts thereof, wherein R
1
, R
2
, R
3
and R
4
are defined above herein. The present invention is also directed to uses of the compounds of Formula (I) to add phosphoramidate groups onto organic alcohols.
本发明涉及化合物(I)及其盐,其中R1、R2、R3和R4的定义如上所述。本发明还涉及将化合物(I)用于将
磷酰胺基酸基团添加到有机醇中的用途。