Synthesis 2018; 50(08): 1587-1600
DOI: 10.1055/s-0036-1591965
short review
© Georg Thieme Verlag Stuttgart · New York

Synthesis of C-Nor-D-homo-steroidal Alkaloids and Their Derivatives

Farnoush Mousavizadeh
University of Leipzig, Institute for Organic Chemistry, Johannisallee 29, 04103 Leipzig, Germany   eMail: giannis@uni-leipzig.de
,
Daniel Meyer
University of Leipzig, Institute for Organic Chemistry, Johannisallee 29, 04103 Leipzig, Germany   eMail: giannis@uni-leipzig.de
,
University of Leipzig, Institute for Organic Chemistry, Johannisallee 29, 04103 Leipzig, Germany   eMail: giannis@uni-leipzig.de
› Institutsangaben

Deutsche Forschungsgemeinschaft (Grant number GI 204/8-1).
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Publikationsverlauf

Received: 02. Januar 2018

Accepted after revision: 27. Februar 2018

Publikationsdatum:
21. März 2018 (online)


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§ Both authors contributed equally to this work.

Abstract

The C-nor-D-homo-steroidal alkaloid cyclopamine was discovered in the 1969 and in 2000 it was shown to act as an inhibitor of the hedgehog signaling (Hh) pathway, which is aberrantly activated in some tumors. Subsequently it was revealed that this natural occurring alkaloid has also antidiabetic and antiviral properties. In this review we present syntheses of selected C-nor-D-homo-steroidal alkaloids and their analogues and also discuss a general access to C-nor-D-homo-steroids. Some historical as well as biomedical aspects are also presented.

1 Introduction

2 Total Synthesis of Cyclopamine

2.1 Synthesis of exo-Cyclopamine and Further Cyclopamine Analogues

2.2 Synthesis of a Carbacyclopamine Analogue

3 D-Homocyclopamine: Saridegib (IPI-926)

4 Synthesis of Nakiterpiosin

5 Lewis Acid Mediated Nazarov Cyclization as a Versatile Method for C-Nor-D-homo-steroid Synthesis

6 Conclusion