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New benzofuran-type lignans, vibsanol (1) and 9'-O-methylvibsanol (2), along with dihydrodehydrodiconiferyl alcohol (3), have been isolated from the wood of Viburnum awabuki (Caprifoliaceae). Their structures have been elucidated mainly on the basis of spectroscopic data. The antioxidant property of new compounds has been evaluated.
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Fukuyama et al. (1996) studied this question.
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