2,3-Difluoro-5-(trifluoromethoxy)pyridine-6-carboxylic acid
Methyl 4-(chloromethyl)-3-methyl-5-(trifluoromethoxy)pyridine-2-carboxylate
6-(Chloromethyl)-2-methoxy-3-(trifluoromethoxy)pyridine
2,3-Difluoro-4-(trifluoromethoxy)pyridine-5-carboxylic acid