Ethyl 2-amino-3-(difluoromethyl)-6-iodopyridine-4-acetate
6-(Chloromethyl)-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-sulfonyl chloride
4-Amino-3-(difluoromethyl)pyridine-5-carboxaldehyde
3-(Difluoromethyl)-4-fluoro-2-(trifluoromethyl)pyridine-5-acetic acid