Ethyl 2,4-dibromo-3-(trifluoromethoxy)pyridine-6-carboxylate
2-(Aminomethyl)-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-carbonyl chloride
Methyl 4-amino-2-(aminomethyl)-3-(difluoromethyl)pyridine-5-carboxylate
Methyl 4-(difluoromethyl)-2-hydroxy-3-methylpyridine-6-carboxylate