Ethyl 4-(difluoromethyl)-2,6-diiodopyridine-3-acetate
Ethyl 2-(difluoromethyl)-4,6-diiodopyridine-3-acetate
Ethyl 5-(difluoromethyl)-2,4-diiodopyridine-3-acetate
Methyl 3-(difluoromethyl)-4,5-diiodopyridine-2-acetate
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