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