2-(Fluoromethyl)-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
4-(Difluoromethyl)-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
5-(Difluoromethyl)-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
3-(Difluoromethyl)-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine