Methyl 4-amino-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxylate
5-Bromo-2-cyano-4-(trifluoromethoxy)pyridine-3-methanol
Methyl 4-amino-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxylate
4-Amino-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine-6-carboxylic acid