Antioxidant phenylpropanoid glycosides from Buddleja davidii.

Abstract:

:Phytochemical investigations on the n-BuOH-soluble fraction of the whole plant of Buddleja davidii led to the isolation of the phenylpropanoid glycosides 1-10. Their structures were determined by 1D and 2D NMR spectroscopic techniques. All the compounds showed potent antioxidative activity in three different tests, with IC(50) values in the range 4.15-9.47 microM in the hydroxyl radical ( OH) inhibitory activity test, 40.32-81.15 microM in the total ROS (reactive oxygen species) inhibitory activity test, and 2.26-7.79 microM in the peroxynitrite (ONOO(-)) scavenging activity test. Calceolarioside A (1) displayed the strongest scavenging potential with IC(50) values of (4.15 +/- 0.07, 40.32 +/- 0.09, 2.26 +/- 0.03 microM) for OH, total ROS and scavenging of ONOO(-), respectively.

authors

Ahmad I,Ahmad N,Wang F

doi

10.1080/14756360802565072

subject

Has Abstract

pub_date

2009-08-01 00:00:00

pages

993-7

issue

4

eissn

1475-6366

issn

1475-6374

journal_volume

24

pub_type

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