Methyl 3-chloro-2-(difluoromethyl)-5-(trifluoromethyl)pyridine-6-carboxylate
Methyl 3-chloro-2-(difluoromethyl)-4-(trifluoromethyl)pyridine-5-carboxylate
5-Chloro-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-4-carboxylic acid
2-Chloro-5-(difluoromethyl)-3-(trifluoromethyl)pyridine-4-acetic acid