2-(Difluoromethyl)-3-methoxy-6-nitro-5-(trifluoromethoxy)pyridine
2-(Difluoromethyl)-3-methoxy-5-nitro-4-(trifluoromethoxy)pyridine
3-Methoxy-5-nitro-4-(trifluoromethoxy)pyridine-2-methanol
3-(Fluoromethyl)-6-methoxy-2-nitro-4-(trifluoromethoxy)pyridine