2-Bromo-3-chloro-5-(trifluoromethoxy)pyridine-6-sulfonyl chloride
2-(3,5-Dichlorophenyl)-4-iodo-3-(trifluoromethyl)pyridine
3-Chloro-5-methoxy-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
4-Amino-5-(chloromethyl)-3-(difluoromethyl)pyridine-2-methanol