2-Bromo-3-(chloromethyl)-5-(difluoromethyl)-4-methoxypyridine
3-Bromo-6-(bromomethyl)-2-(difluoromethyl)-4-methoxypyridine
4-Bromo-6-(bromomethyl)-2-(difluoromethyl)-3-methoxypyridine
6-Bromo-2-(bromomethyl)-3-(difluoromethyl)-4-methoxypyridine
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