Immunosuppressive pregnane glycosides from Periploca sepium and Periploca forrestii
Immunosuppressive pregnane glycosides from Periploca sepium and Periploca forrestii
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杠柳和杠柳中的免疫抑制孕烷苷
DOI:
10.1016/j.phytochem.2008.08.015
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发表时间:
2008-11-01
期刊:
影响因子:
3.8
通讯作者:
Zhao, Weimin
中科院分区:
文献类型:
--
作者:
Feng, Jiaquan;Zhang, Rujun;Zhao, Weimin
Nine pregnane glycosides containing peroxy functions in their sugar moieties (1-5 and 11-14), five oligosaccharides (6-10), six pregnane glycosides (15-20), and five cardiac glycosides (21-25) were isolated from the root barks of Periploca sepium Bge. (Asclepiadaceae) and the roots of Periploca forrestii Schltr. (Asclepiadaceae), two traditional Chinese medicines used for the treatment of rheumatoid arthritis. Among them, 1-8 are hitherto unknown. Their structures were characterized on the basis of spectroscopic analyses. In pharmacological testing, compounds 1-5 and 11-14 were found to exhibit inhibitory activity against the proliferation of T lymphocyte in vitro with IC50 values ranging from 0.29 mu M to 1.97 mu M, while the other components showed no significant inhibitory activity. (C) 2008 Elsevier Ltd. All rights reserved.