Chemical constituents from Alpinia tonkinensis

Abstract

Two new compounds, 2α-(p-hydroxycinnamoyl) cineole (2) and (E)-15-nor-16-oxo-8(17),12-labdadiene (4), along with three known compounds, trans-cinnamyl methyl ester (1), 4(15)-cadinene-6,10-diol (3) and isorhamnetin-3-O-β-d-galactosyl-(6→1)-α-l-rhamnoside (5), have been isolated from Alpinia tonkinensis Gangep. Their structures have been elucidated by spectral analysis.

Keywords:

• Alpinia tonkinensis Gangep
• 2α-(p-Hydroxy-cinnamoyl)cineole
• (E)-15-nor-16-Oxo-8(17),12-labdadiene

Acknowledgement

This research work was supported by the Teaching and Research Award Program for Outstanding Young Teachers in Higher Education Institutions of MOE, China.