Ethyl 4-amino-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 2-amino-5-(chloromethyl)-3-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 2-amino-4-(chloromethyl)-3-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 5-amino-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine-4-carboxylate