[Study on Chemical Constituents of Stems from Altingia chinensis].

OBJECTIVE

To study the chemical constituents of the stems from Altingia chinensis.

METHODS

The stems from Altingia chinensis were extracted with 95% ethanol for reflux,and the extract were evaporated. The chemical constituents were isolated by silica gel chromatography and Sephadex LH-20 column chromatography from petrol ether part and ethyl acetate part of extract. Their structures were identified on the basis of physico-chemical characters and spectroscopic analysis.

RESULTS

Eleven compounds were obtained from the stems from Altingia chinensis,which identified as myrsinene( 1),oleanonic aldehyde( 2),3β,23,28-trihydroxyolean-12-ene( 3),ursolic acid-3β-octadecanoate( 4),arjunglucoside Ⅱ( 5),β-sitosterol( 6),daucosterol( 7),trans-resveratrol-3-O-β-D-glucopyranoside( 8),ellagic acid 3,3’-dimethylether( 9),lyoniside( 10) and 3,3’-O-dimethylellagic acid-4’-O-α-L-rhamnoside( 11).

CONCLUSION

All the compounds are isolated from Altingia chinensis for the first time.