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[Studies on non-anthraquinones in Rheum officinale Baill]
1Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing 100850, China.
Objective:
To investigate the non-anthraquinones from the root and rootstock of Rheum officinale.
Method:
The chemical constituents were obtained from the 85% alcohol extract of the radix and rhizoma of R. officinale by column chromatography and identified by spectroscopic analysis.
Result:
Ten non-anthraquinones were obtained, of which eight were identified by spectroscopic analysis as rheosmine, daucosterol, d-catechin, 6-cinnamoylisolindleyin, (-)-epicatechin-3-O-gallate, resveratrol-4'-O-beta-D-(6"-O-galloyl)-glucopyranoside, gallic acid, D-sorbitol.
Conclusion:
Compounds rheosmine and D-sorbitol were obtained from the genus Rheum for the first time.
