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