Ethyl 4-(difluoromethyl)-6-methyl-2-(trifluoromethyl)pyridine-3-carboxylate
4-(Difluoromethyl)-2-methyl-5-(trifluoromethyl)pyridine-3-acetic acid
Ethyl 4-(difluoromethyl)-6-methyl-3-(trifluoromethyl)pyridine-2-carboxylate
3-(Difluoromethyl)-5-methyl-6-(trifluoromethyl)pyridine-2-acetic acid