Abstract
The first enantioselective total synthesis of GKK1032A2 has been achieved. The key step is a direct construction of the highly strained 13-membered macrocycle of GKK1032A2 by an intramolecular nucleophilic aromatic substitution (SN Ar) reaction. This is the first successful example of construction of a macrocycle with an aryl ether linkage utilizing an intramolecular SN Ar reaction of an (η6 -arene)chromium complex.
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