2-Bromo-4-(chloromethyl)-3-(difluoromethyl)-5-methylpyridine
4-Bromo-6-(difluoromethyl)-2-methoxy-3-(trifluoromethyl)pyridine
2-Bromo-3-(chloromethyl)-6-(difluoromethyl)-4-methylpyridine
4-Bromo-6-(difluoromethyl)-3-methoxy-2-(trifluoromethyl)pyridine