6-Chloro-2-(difluoromethyl)-3,4-dimethoxypyridine
2-Chloro-6-(difluoromethyl)-3,4-dimethoxypyridine
2-(Difluoromethyl)-3,6-dimethoxy-4-iodopyridine
6-(Difluoromethyl)-2,3-dimethoxy-4-iodopyridine
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