Three new secoiridoid glycoside dimers from Swertia mileensis

Abstract

Three new secoiridoid glycoside dimers named swerilactosides A–C (1–3) were isolated from Swertia mileensis. Their structures were elucidated based on extensive spectral analyses (1D and 2D NMR, MS, and IR spectroscopic means).

Keywords:

• secoiridoid glycoside dimers
• swerilactosides A–C
• Swertia mileensis
• Gentianaceae

Acknowledgements

This work was financially supported by the National Natural Science Foundation of China and Yunnan Province (Grant No. U0832603), the Major Project of Innovative Engineering (KSCX2-YW-R-181), Xibu Zhiguang Joint-Scholarship of Chinese Academy of Sciences and the State Key Laboratory of Phytochemistry and Plant Resources in West China. We are grateful to the staff of the analytical group of the State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences.