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JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
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AMER CHEMICAL SOC
DOI: 10.1021/jacs.2c13584
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In this study, we successfully reported the total synthesis of the indole diterpenoid natural product shearilicine for the first time through an 11-step sequence using a generalizable precursor. The target molecule was obtained in an enantiospecific manner using a native chiral auxiliary strategy. The formation of the key carbazole substructure was achieved through a mild intramolecular Heck cyclization, which was promoted by noncovalent substrate-ligand and ligand-ligand interactions revealed by computational study.
Herein we report the first total synthesis of the indole diterpenoid natural product shearilicine by an 11-step sequence via a generalizable precursor to the highly oxidized subclass of indole diterpenoids. A native chiral auxiliary strategy was employed to access the target molecule in an enantiospecific fashion. The formation of the key carbazole substructure was achieved through a mild intramolecular Heck cyclization, wherein a computational study revealed noncovalent substrate-ligand and ligand-ligand interactions that promoted migratory insertion.
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