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