Methyl 3-methoxy-4-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-2-acetate
2-Methoxy-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-4-acetic acid
Methyl 3-methoxy-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-5-acetate
3-(Difluoromethyl)-5-methoxy-2-(trifluoromethoxy)pyridine-4-carboxylic acid