A new triterpenoid saponin from the aerial parts of Cephalaria ambrosioides

Abstract

A new allose-containing triterpenoid saponin (1), along with a known saponin (2), were isolated from the aerial parts of Cephalaria ambrosioides. Their structures were determined by spectroscopic (2D-NMR and ESI-MS) methods. The preferred conformation of 1 was determined by the NOESY spectrum.

Keywords:

• Cephalaria ambrosioides
• saponin
• 2D-NMR
• ESI-MS

Acknowledgements

This article was supported by the Ministry for Science, Technology and Development of the Republic of Serbia (Project No. 142053). The authors are grateful to Prof. Vlade Matevski, The University of Skopje, for the identification of the plant. Many thanks to the staff of Galičica National Park, Ohrid, Macedonia, for immense help in collecting the plant material.