3-(Chloromethyl)-4-methyl-2-(trifluoromethoxy)pyridine-5-carboxylic acid
5-(Difluoromethyl)-2-methyl-3-(trifluoromethoxy)pyridine-6-carboxylic acid
6-(Chloromethyl)-3-methyl-4-(trifluoromethoxy)pyridine-2-carboxylic acid
4-(Difluoromethyl)-2-methyl-3-(trifluoromethoxy)pyridine-6-carboxylic acid