A novel antimicrobial flavonoidic glycoside from the leaves of Alstonia macrophylla Wall ex A.DC(Apo

来源 :Chinese Chemical Letters | 被引量 : 0次 | 上传用户:wys9802110814
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A new flavonoidic glycoside,tricin-4’-O-β-L-arabinoside(1) was isolated from the leaves of Alstonia macrophylla along with two known flavonoids,vitexin and myricetin-3′-rhamnoside-3-O-galactoside.Their structures were established by chemical and spectral evidences.The known compounds were reported for the first time from this plant.Moreover compound 1 was tested for antifungal and antibacterial activities. A new flavonoidic glycoside, tricin-4’-O-β-L-arabinoside (1) was isolated from the leaves of Alstonia macrophylla along with two known flavonoids, vitexin and myricetin-3’-rhamnoside-3-O-galactoside. structures were established by chemical and spectral evidences. The known compounds were reported for the first time from this plant. More than compound 1 was tested for antifungal and antibacterial activities.
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