Methyl 2-(difluoromethyl)-4-methyl-6-(trifluoromethyl)pyridine-3-carboxylate
6-(Difluoromethyl)-2-methyl-4-(trifluoromethyl)pyridine-3-carboxylic acid
Methyl 2-(difluoromethyl)-4-methyl-3-(trifluoromethyl)pyridine-5-carboxylate
2-(Difluoromethyl)-6-methyl-3-(trifluoromethyl)pyridine-5-carboxylic acid