Ligand Type Guided Keto-Arylation Enables Modular Total Synthesis of Polycyclic CBS Xanthones
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The first total synthesis of the potent polycyclic xanthone antibiotics CBS72, CBS87 and CBS100 was accomplished by a modular strategy featuring a very demanding intermolecular aromatic keto-arylation. Central to the solution was a recently-developed ligand ty... ...
