A Unified Strategy to Construct the Tetracyclic Ring of Calyciphylline A Alkaloids: Total Synthesis of Himalensine A

Jiaxin Zhong, Kuanwei Chen, Yuanyou Qiu, Haibing He, Shuanhu Gao*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

67 Scopus citations

Abstract

The synthetic approach to the core framework of the calyciphylline A-type Daphniphyllum alkaloids and total synthesis of himalensine A were described herein. Nitrone-induced 1,3-dipolar [3 + 2] cycloaddition was applied for the construction of A/C rings along with the all-carbon quaternary center. Pd-catalyzed enolate alkenylation and ring closing metathesis (RCM) were adopted to install the B/D rings to accomplish the [6,6,5,7] core framework. Nazarov reaction was utilized to install the F ring to complete the total synthesis of himalensine A.

Original languageEnglish
Pages (from-to)3741-3745
Number of pages5
JournalOrganic Letters
Volume21
Issue number10
DOIs
StatePublished - 17 May 2019

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