Facile synthesis of 2-substituted ethyl 2-(2-amino-5-ethoxycarbonylthiazol-4-yl)ethanoates
作者:Diana Bric̆kutė、Frank A. Sløk、Christian Rømming、Algirdas S̆ac̆kus
DOI:10.1039/b110022j
日期:2002.2.22
An easy and convenient synthesis of highly functionalized 2-aminothiazole derivatives is described. Ethyl 2-bromo-2-(2-amino-5-ethoxycarbonylthiazol-4-yl)ethanoate 4 was obtained by reaction of 2,4-dibromo-3-oxoglutarate with thiourea. It can be transformed to 2-iminoethanoate 10 by nucleophilic displacement of the bromide with an azide ion followed by rearrangement with elimination of the molecule