Methyl 4-(difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine-6-carboxylate
5-(Aminomethyl)-2-(difluoromethyl)-3-methyl-4-(trifluoromethoxy)pyridine
Methyl 3-(difluoromethyl)-4-nitro-6-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 3-(difluoromethyl)-2-nitro-5-(trifluoromethoxy)pyridine-6-acetate