Methyl 6-amino-4-(bromomethyl)-2-(difluoromethyl)pyridine-3-acetate
Methyl 3-bromo-4-(chloromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylate
2-(Bromomethyl)-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-5-sulfonyl chloride
4-(Difluoromethyl)-3-fluoropyridine-2-sulfonyl chloride