Ethyl 4-methyl-2-(2-oxo-3-(4,4,4-trifluorobutyl)imidazolidin-1-yl)thiazole-5-carboxylate → 4-Methyl-2-(2-oxo-3-(4,4,4-trifluorobutyl)imidazolidin-1-yl)thiazole-5-carboxylic acid

Participants

Reaction Steps

Following the procedure as described in Preparation 14, making variations as required to replace ethyl 2-(3-((2,2-difluorocyclopropyl)methyl)-2-oxoimidazolidin-1-yl)-4-methylthiazole-5-carboxylate with ethyl 4-methyl-2-(2-oxo-3-(4,4,4-trifluorobutyl)imidazolidin-1-yl)thiazole-5-carboxylate, the title compound was obtained as a colourless solid in 87% yield: 1H NMR (300 MHz, DMSO-d6) δ 12.8 (s, 1H), 4.02-3.97 (m, 2H), 3.59-3.54 (m, 2H), 3.33-3.29 (m, 2H), 2.50 (s, 3H), 2.35-2.26 (m, 2H), 1.79-1.69 (m 2H); MS (ES+) m/z 338.1 (M+1).

Provenance & Evidence