Two triterpenes from Lysimachia foenum-graecum

Abstract

One new oleane-type triterpene saponin, named lysimachiagenoside A (1) and the known 21-O-angeloylbarringtogenol C (2) were isolated from the aerial parts of Lysimachia foenum-graecum Hance. 21-O-angeloylbarringtogenol C was a new natural product. These structures were identified on the basis of 1D- and 2D-NMR techniques, including ¹H–¹H COSY, HMQC, HMBC, TOCSY, and ROESY experiments as well as chemical methods.

Keywords:

• Lysimachia foenum-graecum Hance
• triterpene saponin
• lysimachiagenoside A