Cyclobakuchiol C, a new bakuchiol derivative from Psoraleacoryllfolia

Abstract

A new compound, cyclobakuchiol C (1), together with four known bakuchiol derivatives, 2–5, was isolated from the non-polar fraction of the seeds of Psoralea corylifolia, and compounds 3–5 were identified from this plant for the first time. The structure of 1 was determined by spectroscopic methods, especially 2D NMR experiments.

Keywords:

• Psoralea corylifolia
• Fabaceae
• Cyclobakuchiol C

Acknowledgements

The financial support of the National Natural Science Foundation (30025044) of China and the foundation from the Ministry of Science and Technology (2002CB512807) of China are gratefully acknowledged. We thank Dr. Ying Xiang for identification of the plant material.