5-(Chloromethyl)-2-cyano-3-(difluoromethyl)pyridine-6-carboxylic acid
4-(Chloromethyl)-2-cyano-6-(trifluoromethoxy)pyridine-3-carboxylic acid
4-Amino-2-(fluoromethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine
2-(Fluoromethyl)-5-methoxy-6-(trifluoromethoxy)pyridine-3-carboxylic acid