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