申请人:Bigot Antony
公开号:US20110313168A1
公开(公告)日:2011-12-22
The invention relates to a method for preparing an activated ester of the formula (I), where R is a (C
1
-C
6
) alkyl, aryl, heteroaryl, cycloalkyl, or heterocycloalkyl group, and ALK is a (C
1
-C
6
) alkylene group, said method consisting of reacting the dicyclohexylamine P
1
salt and the disuccinimidyl carbonate (DSC) in a solvent in which the dicyclohexylamine salt of the N-hydroxysuccinimide P
2
is precipitated. The invention also relates to products of the formula P
1
.
本发明涉及一种制备式(I)活化酯的方法,其中R是(C1-C6)烷基、芳基、杂芳基、环烷基或杂环烷基,ALK是(C1-C6)烷基,该方法包括在溶剂中反应二环己基胺P1盐和二琥珀酰亚胺碳酸酯(DSC),其中N-羟基琥珀酰亚胺P2的二环己基胺盐被沉淀。本发明还涉及式P1的产物。