A combinatorially convenient version of synthesis of 5-substituted oxazole-4-carboxylic acid ethyl esters
作者:V. M. Tormyshev、T. V. Mikhalina、O. Yu. Rogozhnikova、T. I. Troitskaya、D. V. Trukhin
DOI:10.1134/s1070428006070177
日期:2006.7
Reaction of ethyl isocyanoacetic acid with sodium hydride in anhydrous benzene, followed by treatment with carboxylic acid chlorides or N-(acyloxy)pyrrolidine-2,5-diones, gives 5-substituted oxazole-4-carboxylic acid esters. The procedure is applicable to derivatives of various carboxylic acids, including saturated aliphatic, alpha,beta-unsaturated, alicyclic, aromatic, heterocyclic, and N-Boc-protected amino acids.