Complete Assignments of 1H and 13C-NMR Spectra of the 3,4-seco-Triterpene Canaric Acid isolated from Rudgea jasminoides

Abstract

The canaric acid 1 was isolated from the leaves of Rudgea jasminoides. Compound 1 is a seco-lupane derivative and its structure was established on the basis of spectral data, mainly by 1D and 2D NMR experiments. Sitosterol, stigmasterol and ursolic and oleanolic acids were also isolated.

Keywords

• Rudgea jasminoides
• Rubiaceae
• seco-A-ring lupane triterpene