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