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