Ethyl 3-(difluoromethyl)-2-methoxy-5-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 4-(difluoromethyl)-3-methoxy-5-(trifluoromethoxy)pyridine-2-acetate
5-Methyl-2-nitro-4-(trifluoromethoxy)pyridine-3-carbonyl chloride
Ethyl 5-(difluoromethyl)-3-methoxy-2-(trifluoromethoxy)pyridine-4-acetate