3-Chloro-5-hydroxy-2-nitro-6-(trifluoromethoxy)pyridine
5-Chloro-3-(difluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine
Ethyl 4-cyano-5-methoxy-2-(trifluoromethoxy)pyridine-3-acetate
3-Chloro-5-(difluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine