In vitro: |
Planta Med.,1986, 52(02):135-8. | Studies on coumarins of a Chinese drug [Pubmed: 3725933] | METHODS AND RESULTS: Three kinds of new coumarin-glycosides, Decuroside I ( 1), Decuroside II ( 2), Decuroside III ( 3), which were isolated from the N-butanol extracts of the crude drug Zi-Hua Qian-Hu, the root of PEUCEDANUM DECURSIVUM Maxim. (Umbelliferae), were elucidated to be nodakenetin-4′- O-β-gentiobiose, nodakenetin-4′- Oβ-isomaltose and nodakenetin-4′- O-β-maltose, respectively, by the methods of chemical and spectral analysis. These three new compounds as well as Decuroside IV ( 4), decuroside V ( 5) and nodakenin ( 6) which were also isolated from Zi-Hua Qian-Hu were tested on human platelet aggregation induced by 2 μM ADP. CONCLUSIONS: Among these coumarin-glycosides, 3 and 4, showed the strongest inhibiting activity against the primary and secondary wave aggregation of human platelet. 1 and 2 had a less inhibiting effect or none at all, and 5 was rather promotive against the primary wave aggregation. |
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