6-Amino-2-(difluoromethyl)-3-nitro-4-(trifluoromethoxy)pyridine
Ethyl 3-amino-6-bromo-2-(trifluoromethoxy)pyridine-4-carboxylate
4-Amino-3-(difluoromethyl)-5-iodo-2-(trifluoromethoxy)pyridine
2-Amino-6-(difluoromethyl)-4-nitro-3-(trifluoromethoxy)pyridine