Synlett 2017; 28(10): 1134-1150
DOI: 10.1055/s-0036-1588738
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© Georg Thieme Verlag Stuttgart · New York

Total Synthesis of Camptothecins: An Update

Lei Chen
a   Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai, 200433, P. R. of China
,
Fen-Er Chen*
a   Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai, 200433, P. R. of China
b   Institutes of Biomedical Sciences, Fudan University, Shanghai, 200031, P. R. of China   Email: rfchen@fudan.edu.cn
› Author Affiliations
Further Information

Publication History

Received: 30 December 2016

Accepted after revision: 07 February 2017

Publication Date:
15 March 2017 (online)


Abstract

Over the last few decades, considerable research efforts have been directed toward the development of effective chemical syntheses of camptothecin and its analogs. The last comprehensive review of this area was published in 2003 and many effective new methods have since been reported for the stereoselective synthesis of the camptothecin alkaloids. In this account, we have summarized most of the novel synthetic approaches developed for the synthesis of camptothecins during the last decade. We have focused on strategies for the construction of the pentacyclic ring system and the different methods used to install the chiral quaternary center on the E ring of camptothecin.

1 Introduction

2 Synthesis of Racemic Camptothecins

3 Enantioselective Synthesis of Camptothecins

3.1 Sharpless Asymmetric Dihydroxylation

3.2 Catalytic Asymmetric Cyanosilylation

3.3 Auxiliary-Induced Asymmetric Carbonyl Addition

3.4 Catalytic Asymmetric Ethylation

3.5 Asymmetric Hydroxylation

4 Conclusion

 
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