2-(Chloromethyl)-4-methoxy-5-methyl-3-(trifluoromethoxy)pyridine
3-(Difluoromethyl)-4-methoxy-5-methyl-2-(trifluoromethoxy)pyridine
3-(Difluoromethyl)-2-methoxy-6-methyl-5-(trifluoromethoxy)pyridine
6-(Difluoromethyl)-2-methoxy-3-methyl-4-(trifluoromethoxy)pyridine