Methyl 4-cyano-3-(difluoromethyl)pyridine-5-acetate
5-Amino-2-(bromomethyl)-3-(difluoromethyl)pyridine-4-acetic acid
2-(Chloromethyl)-4-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-3-sulfonyl chloride
Methyl 2-amino-6-(difluoromethyl)-3-iodopyridine-4-carboxylate