Synlett 2017; 28(10): 1127-1133
DOI: 10.1055/s-0036-1588745
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© Georg Thieme Verlag Stuttgart · New York

Synthesis of Secosterols as an Arena for C–H Functionalization and C–C Manipulation Tactics

Robert C. Heinze
Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany   eMail: robert.heinze@fu-berlin.de   eMail: philipp.heretsch@fu-berlin.de
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Philipp Heretsch*
Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, 14195 Berlin, Germany   eMail: robert.heinze@fu-berlin.de   eMail: philipp.heretsch@fu-berlin.de
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Publikationsverlauf

Received: 20. Dezember 2016

Accepted: 17. Februar 2017

Publikationsdatum:
08. März 2017 (online)


Abstract

The chemical synthesis of secosterols is an arena for the application of C–H functionalization methods as well as C–C manipulations. Studies on the innate reactivity of synthetic intermediates to undergo C–C scissions and rearrangements can shed light on biosynthetic pathways, or, provide proof for biosynthetic proposals. Examples of the authors work (synthesis of the 14,15-secosterol strophasterol A), as well as examples from current literature (Tian’s synthetic work on 13,14:14,15-disecosterols glaucogenins C and D, and Baran’s synthesis of 9,10-secosterol cortistatin A) are discussed.

1 Introduction

2 The Synthesis of Strophasterol A Employing the Concept of Innate Reactivity

3 Synthetic Work in the Glaucogenin Family of Natural Products

4 The Synthesis of Cortistatin A Using a Radical Ring Expansion

5 Conclusion