Ethyl 2,6-dibromo-4-(trifluoromethoxy)pyridine-3-carboxylate
2-(Difluoromethyl)-5-hydroxy-3-iodopyridine-6-carbonyl chloride
5-(Chloromethyl)-4-(difluoromethyl)-3-(trifluoromethyl)pyridine-2-sulfonyl chloride
Ethyl 2,3,5,6-tetrafluoro-4-pyridinecarboxylate