3-(Difluoromethyl)-4,6-dihydroxy-2-iodopyridine
5-(Difluoromethyl)-2,4-dihydroxy-3-iodopyridine
3-(Difluoromethyl)-2,4-dihydroxy-6-iodopyridine
3-(Difluoromethyl)-2,4-dihydroxy-5-iodopyridine
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