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