4-(Bromomethyl)-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-sulfonyl chloride
2-Amino-3-(difluoromethyl)-5-(trifluoromethyl)pyridine
5-Amino-2-(difluoromethyl)-4-(fluoromethyl)pyridine
4-(Chloromethyl)-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-carboxaldehyde