Synthesis 2006(22): 3874-3882  
DOI: 10.1055/s-2006-950297
PAPER
© Georg Thieme Verlag Stuttgart · New York

One-Pot Synthesis of N-Substituted Azapodophyllotoxin Derivatives under Microwave Irradiation

Shujiang Tu*a, Yan Zhanga, Bo Jianga, Runhong Jiaa, Junyong Zhanga, Jinpeng Zhangb, Shunjun Ji*b
a Department of Chemistry, Xuzhou Normal University, Key Laboratory of Biotechnology for Medicinal Plant, Xuzhou, Jiangsu, 221116, P. R. of China
Fax: 86(516)83403164; e-Mail: laotu@xznu.edu.cn;
b College of Chemistry and Chemical Engineering, Key Laboratory of Organic Synthesis of Jiangsu Province, Suzhou University, Suzhou, P. R. of China
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Publication History

Received 14 June 2006
Publication Date:
09 October 2006 (online)

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Abstract

A series of new, N-substituted azapodophyllotoxin derivatives were synthesized via a three-component reaction of an aldehyde, an enaminone and tetronic acid in glacial acetic acid, under microwave irradiation, without a catalyst. This new protocol has the advantages of shorter time, higher yields, lower cost and broader substrate scope, as well as easier operation.