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