Synlett 2015; 26(18): 2583-2587
DOI: 10.1055/s-0035-1560479
letter
© Georg Thieme Verlag Stuttgart · New York

A Concise Formal Total Synthesis of (±)-Centrolobine via DDQ-Mediated Diastereoselective Allylation and Ring-Closing Metathesis

Hyoungsu Kim
College of Pharmacy, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, 443-749, Korea   Email: dongjoo@ajou.ac.kr
,
Dongjoo Lee*
College of Pharmacy, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, 443-749, Korea   Email: dongjoo@ajou.ac.kr
› Author Affiliations
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Publication History

Received: 17 July 2015

Accepted after revision: 18 September 2015

Publication Date:
18 September 2015 (online)


Abstract

An expedient approach to the construction of arylated 2,6-cis-disubstituted dihydropyran framework was developed involving subsequent DDQ-mediated diastereoselective allylation at an oxygen-substituted benzylic position and ring-closing metathesis (RCM) as key transformations. The synthetic utility of the methodology was illustrated by a formal total synthesis of (±)-centrolobine in five steps from the known homoallylic alcohol or in eight steps from the readily available THP-protected glycidol. This route allows for direct access towards other diarylheptanoid natural products and their synthetic analogues with a variety of side chains.

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