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