Cyclohexyl-ethanol derivatives from the roots of Incarvillea mairei

Abstract

Two new cyclohexyl-ethanol derivatives, incarvmareins A (1) and B (2), together with two known derivatives, 3 and 4, were isolated from the ethanolic extract of the roots of Incarvillea mairei. The structures of the new compounds were elucidated primarily on the basis of analysis of spectroscopic data.

Keywords:

• Incarvillea mairei
• Bignoniaceae
• cyclohexyl-ethanol derivative
• incarvmareins

Acknowledgements

The work was partially supported by the National Natural Science Foundation of China (30725045), National 863 Program (2006AA02Z338), ‘973’ Program of China (2007CB507400), Shanghai Leading Academic Discipline Project (B906), and in part by the Scientific Foundation of Shanghai China (07DZ19728, 06DZ19717, and 06DZ19005). We acknowledge the Pharmaceutical Analysis Center of Second Military Medical University for measuring the IR and NMR spectra. We also thank Professor Bao-Zhong Duan of College of Da Li for collection and identification of the plant.