ethyl 2-(1-(4-(difluoromethoxy)benzyl)-5-oxo-1H-1,2,4-triazol-4(5H)-yl)-4-methylthiazole-5-carboxylate → 2-(1-(4-(difluoromethoxy)benzyl)-5-oxo-1,2,4-triazol-4(5H)-yl)-4-methylthiazole-5-carboxylic acid

Participants

Reaction Steps

Following the procedure as described in Example 20, making variation as required to replace ethyl 4-methyl-2-(5-oxo-1-(4-(trifluoromethyl)benzyl)-1H-1,2,4-triazol-4(5H)-yl)thiazole-5-carboxylate with ethyl 2-(1-(4-(difluoromethoxy)benzyl)-5-oxo-1H-1,2,4-triazol-4(5H)-yl)-4-methylthiazole-5-carboxylate, the title compound was obtained as a white solid in 91% yield: MS (ES−) m/z 381.1 (M−1).

Provenance & Evidence