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