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