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. 2010 Aug 20;12(16):3638-41.
doi: 10.1021/ol101427m.

Kingianin A: a new natural pentacyclic compound from Endiandra kingiana

Aurélie Leverrier  1 , Huu Dau Marie Elise Tran, Pascal Retailleau, Khalijah Awang, Françoise Guéritte, Marc Litaudon
Affiliations

Kingianin A: a new natural pentacyclic compound from Endiandra kingiana

Aurélie Leverrier et al. Org Lett. .

Abstract

A new natural pentacyclic compound, named kingianin A, was isolated as a racemic mixture from the barks of Endiandra kingiana (Lauraceae). Its structure was elucidated by comprehensive analysis of NMR spectroscopic data, X-ray crystallography, and ECD calculations. The pentacyclic skeleton may be formed by a Diels-Alder reaction between two monomers having a bicyclo[4.2.0]octadiene backbone formed by a stereospecific electrocyclization of a linear compound of polyketide origin.

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