6-(Difluoromethyl)-2,3-diiodo-4-methoxypyridine
3-Cyano-5-(difluoromethyl)-2,4-diiodopyridine
4-(Difluoromethyl)-2,3-diiodo-6-methoxypyridine
5-Cyano-6-(difluoromethyl)-2,3-diiodopyridine
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