5-Chloro-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetic acid
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