Structural elucidation of a new alkaloid from Tournefortia sibirica L.

Abstract

A new alkaloid, tournesibirin (1), was isolated from the dichloromethane extracts from Tournefortia sibirica L. The structure of 1 was determined by spectroscopic methods, including UV, IR, HR-ESI-MS and extensive 1D and 2D NMR techniques.

Graphical Abstract

Keywords:

• Tournefortia sibirica L.
• Boraginaceae
• alkaloid
• tournesibirin

Acknowledgements

This work was supported by Major Open Subjects of Basic Research in Inner Mongolia Autonomous Region of China (NMKJZX1702) and the postgraduate research project of Inner Mongolian University for Nationalities (NMDSS1969).

Disclosure statement

No potential conflict of interest was reported by the authors.