Ethyl 3-bromo-5-(difluoromethyl)-2-methylpyridine-4-acetate
4-(Bromomethyl)-5-methoxy-2-(trifluoromethoxy)pyridine-3-acetic acid
6-(Chloromethyl)-2-(difluoromethyl)-3-iodopyridine-4-carboxaldehyde
6-Amino-4-cyano-3-(difluoromethyl)pyridine-2-sulfonyl chloride