Methyl 3-(chloromethyl)-6-(difluoromethyl)-2-methoxypyridine-4-carboxylate
Methyl 2-nitro-6-(trifluoromethoxy)pyridine-3-carboxylate
2-(Chloromethyl)-3-(difluoromethyl)-4-methyl-6-(trifluoromethoxy)pyridine
Methyl 2-nitro-4-(trifluoromethoxy)pyridine-3-carboxylate