Optimization of CRF1R binding affinity of 2-(2,4,6-trichlorophenyl)-4-trifluoromethyl-5-aminomethylthiazoles through rapid and selective parallel synthesis.

An efficient approach was developed to synthesize 2-(2,4,6-trichlorophenylamino)-4-trifluoromethyl-5-aminomethylthiazoles, corticotropin-releasing factor type 1 receptor (CRF1R) antagonists, by monoalkylation of amines with chloromethyl intermediate 5. The effect of variations in aminomethyl side chain of 6 on binding affinity is discussed.