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