申请人:——
公开号:US20040082811A1
公开(公告)日:2004-04-29
The invention relates to a process for the preparation of a compound of formula (I), wherein R represents a 2,3-dihydroxy-1-propyl or a 1,3-dihydroxy-2-propyl radical, via direct amidation of a dialkyl ester of 5-amino-1,3-benzenedicarboxylic acid of formula (V), wherein R
1
represents a straight or branched (C
1
-C
4
)-alkyl group, with at least the stoichiometric amount of an amine of formula H
2
NR.
本发明涉及一种制备式(I)化合物的方法,其中R表示2,3-二羟基-1-丙基或1,3-二羟基-2-丙基基团,通过直接酰胺化式(V)的5-氨基-1,3-苯二甲酸二烷基酯,其中R1表示直链或支链(C1-C4)烷基组,使用至少化学计量量的式H2NR的胺。