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