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