6-(Difluoromethyl)-2-methoxy-4-nitro-3-(trifluoromethoxy)pyridine
2-(Difluoromethyl)-6-methoxy-3-nitro-4-(trifluoromethoxy)pyridine
6-(Difluoromethyl)-4-methoxy-3-nitro-2-(trifluoromethoxy)pyridine
3-(Aminomethyl)-5-methoxy-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine