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