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