3-Chloro-2-cyano-6-(trifluoromethoxy)pyridine-5-sulfonyl chloride
6-Chloro-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-acetic acid
2-Chloro-5-cyano-6-(trifluoromethoxy)pyridine-3-sulfonyl chloride
2-Chloro-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetic acid