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