Journal
ARCHIVES OF PHARMACAL RESEARCH
Volume 28, Issue 9, Pages 1023-1026Publisher
PHARMACEUTICAL SOC KOREA
DOI: 10.1007/BF02977395
Keywords
Petasites japonicus; petaslignolide A; furofuran lignan; DPPH radical scavenging; antiseizure
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A new furofuran lignan (1) was isolated from the n-butanol fraction of the methanolic extract of the leaves of Petasites japonicus (Sieb. et Zucc.) Maxim. (Compositae). The structure of compound 1 was determined to be 2 alpha-(4'-hydroxy-3'-methoxyphenyl)-6 alpha-(4-hydroxy-3-methoxyphenyl)-8 alpha-hydroxy-3,7-dioxabicyclo[3.3.0]octane 4'-O-(beta-D-glucopyranoside) by spectroscopic methods including 2D-NMR. In further studies, it was found that the compound I expressed an antioxidant activity in DPPH radical scavenging assay, and moreover, ameliorated the seizure in kainic acid-treated mice.
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