Three new erythrina alkaloids from the roots of Erythrina corallodendron

Abstract

Three new erythrina alkaloids, eryalkals A (1), B (2), and C (3), were isolated from the roots of Erythrina corallodendron L. Their structures, including their absolute configurations, were elucidated based on analyses of HR-ESI-MS, 1D/2D NMR and single-crystal X-ray diffraction techniques. The isolated erythrina alkaloids were screened for the antioxidant and cytotoxic activities. All the compounds showed no antioxidant activity and cytotoxic activities.

Graphical Abstract

Keywords:

• Leguminosae
• Erythrina
• erythrina alkaloids
• single-crystal X-ray diffraction
• bioactivity

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was financially supported by the National Natural Science Foundation of China (No. 21732008). The authors are grateful to the Department of Instrumental Analysis at our institute for the spectroscopic measurements.