A convenient and efficient one-pot conversion of peimisine into cyclopamine.

Shu-Yan Zheng, Hong-Sheng Tan, Jian-Sheng Tao, Zheng-Wu Shen

School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China.

Fitoterapia 2012 Oct

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A convenient and efficient one-pot synthesis of cyclopamine from peimisine is described. The key steps involve one-pot hydrazination and subsequent Bamford-Stevens reaction. The mild reaction conditions, high overall yield as well as an easy purification indicate this process can potentially be used for the scale-up preparation of cyclopamine. Copyright © 2012 Elsevier B.V. All rights reserved.

Citation

Shu-Yan Zheng, Hong-Sheng Tan, Jian-Sheng Tao, Zheng-Wu Shen. A convenient and efficient one-pot conversion of peimisine into cyclopamine. Fitoterapia. 2012 Oct;83(7):1238-41