Ethyl 3-(difluoromethyl)-2-methoxy-4-(trifluoromethoxy)pyridine-5-acetate
2-Methoxy-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-4-acetic acid
Ethyl 6-(difluoromethyl)-2-methoxy-4-(trifluoromethoxy)pyridine-3-acetate
6-Methoxy-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-acetic acid