Synthesis of [4-(2-hydroxyphenyl)thiazol-2-yl]methanones as potential bioisosteres of salicylidene acylhydrazides

A focused library of [4-(2-hydroxyphenyl)thiazol-2-yl]methanones was prepared in a four-step synthesis with the aim to obtain potent inhibitors of type III secretion in Gram-negative bacteria. The compounds are potential bioisosteres of salicylidene acylhydrazides that are a known class of type III secretion inhibitors.