Esters of 4-(3-Dialkylamino-2,5-dioxo-2,3,4,5-tetrahydro-1H-pyrrolyl)phenylacetic acids
作者:O. A. Kolyamshin、V. A. Danilov、G. Yu. Dashkova、N. I. Kol'tsov
DOI:10.1007/s11178-006-0014-z
日期:2005.11
Reaction of equivalent amounts of alkyl 4-aminophenylacetates with maleic anhydride gave rise to the corresponding alkyl 4-N-maleimidophenylacetates which with diethylamine, piperidine, and morpholine afforded esters of 4-(3-dialkylamino-2,5-dioxo-2,3,4,5-tetrahydro-1H-pyrrolyl)phenylacetic acids as stereoisomer mixtures.
将等量的 4-氨基苯乙酸烷基酯与马来酸酐反应,可生成相应的 4-N-马来酰亚胺基苯乙酸烷基酯,再与二乙胺、哌啶和吗啉反应,可生成 4-(3-二烷基氨基-2,5-二氧代-2,3,4,5-四氢-1H-吡咯基)苯乙酸酯立体异构体混合物。