[Chemical constituents of roots of Celastrus orbiculatus].

OBJECTIVE

To study the chemical constitutes of roots of Celastrus orbiculatus.

METHODS

The compounds were isolated by column chromatography and identified by spectroscopic methods including IR, MS and NMR.

RESULTS

Nine compounds were isolated and identified as sugiol (1), friedelane-3-one (2), salapermic acid (3), 28-hydroxyfriedelane-3-one (4), pristimerin (5), celastrol (6), beta-sitosterol (7), beta-daucosterol (8) and benzoic acid (9), respectively.

CONCLUSION

Compounds 2 and 4 are isolated from this plant for the first time.