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Phenolic Compounds from the Flowers of Bombax malabaricum and Their Antioxidant and Antiviral Activities.


ABSTRACT: Three new phenolic compounds 1-3 and twenty known ones 4-23 were isolated from the flowers of Bombax malabaricum. Their chemical structures were elucidated by spectroscopic analyses (IR, ESI-MS, HR-ESI-MS, 1D- and 2D-NMR) and chemical reactions. The antioxidant capacities of the isolated compounds were tested using FRAP and DPPH radical-scavenging assays, and compounds 4, 6, 8, 12, as well as the new compound 2, exhibited stronger antioxidant activities than ascorbic acid. Furthermore, all of compounds were tested for their antiviral activities against RSV by the CPE reduction assay and plaque reduction assay. Compounds 4, 10, 12 possess in vitro antiviral activities, and compound 10 exhibits potent anti-RSV effects, comparable to the positive control ribavirin.

SUBMITTER: Zhang YB 

PROVIDER: S-EPMC6331941 | biostudies-literature | 2015 Nov

REPOSITORIES: biostudies-literature

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Phenolic Compounds from the Flowers of Bombax malabaricum and Their Antioxidant and Antiviral Activities.

Zhang Yu-Bo YB   Wu Peng P   Zhang Xiao-Li XL   Xia Chao C   Li Guo-Qiang GQ   Ye Wen-Cai WC   Wang Guo-Cai GC   Li Yao-Lan YL  

Molecules (Basel, Switzerland) 20151105 11


Three new phenolic compounds 1-3 and twenty known ones 4-23 were isolated from the flowers of Bombax malabaricum. Their chemical structures were elucidated by spectroscopic analyses (IR, ESI-MS, HR-ESI-MS, 1D- and 2D-NMR) and chemical reactions. The antioxidant capacities of the isolated compounds were tested using FRAP and DPPH radical-scavenging assays, and compounds 4, 6, 8, 12, as well as the new compound 2, exhibited stronger antioxidant activities than ascorbic acid. Furthermore, all of co  ...[more]

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