Ethyl 6-(3-(trifluoromethoxy)phenyl)-2-(trifluoromethyl)nicotinate
Ethyl 6-(2-(trifluoromethoxy)phenyl)-2-(trifluoromethyl)nicotinate
Ethyl 2-(4-(trifluoromethoxy)phenyl)-6-(trifluoromethyl)nicotinate
Ethyl 2-(4-(trifluoromethoxy)phenyl)-5-(trifluoromethyl)nicotinate