Syntheses of heterocyclic fused thiazolecarboxylic acids I
作者:Stanley C. Bell、Carl Gochman、Peter H. L. Wei
DOI:10.1002/jhet.5570120622
日期:1975.12
A number of thiazolo 5-carboxylicacid derivatives were prepared which were fused to other heterocycles such as 1,2,4-benzothiadiazine, quinazoline, and pyrimidine rings at the 2,3-position of the thiazole ring. In several instances unexpected products were obtained, depending on the reaction conditions. The chemistry of these reactions and the identification of the products are discussed.