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4β-Isocyanopodophyllotoxins: valuable precursors for the synthesis of new podophyllotoxin analogues

Ying-Qian Liu, Lin-Hai Li, Wen-Qun Li, Gang Feng, and Liu Yang

School of Pharmacy, Lanzhou University, Lanzhou, 730000 China

 

E-mail: yqliu@lzu.edu.cn

Abstract: A new and efficient method for the synthesis of novel 4β-isocyanopodophyllotoxins as a valuable building block for the synthesis of versatile bioactive podophyllotoxin analogues under both classical and ultrasonic conditions was developed. In general, significant improvements in rates of reaction and yields of sonochemical reactions relative to the classical ones were observed.

Keywords: 4β-isocyanopodophyllotoxins – anticancer drugs – multicomponent reactions – ultrasound

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-011-0062-x

 

Chemical Papers 65 (5) 739–742 (2011)

Sunday, December 15, 2019

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