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Neogrifolin derivatives possessing anti-oxidative activity from the mushroom Albatrellus ovinus
Makiko Nukata ,
Toshihiro Hashimoto ,
Isao Yamamoto ,
Nobuki Iwasaki ,
Masami Tanaka ,
Yoshinori Asakawa
April 2002
April 2002
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Abstract
Three neogrifolin derivatives, 3-hydroxyneogrifolin, 1-formylneogrifolin and 1-formyl-3-hydroxyneogrifolin
along with grifolin and neogrifolin were isolated from the Japanese mushroom Albatrellus
ovinus belonging to Scutigeraceae. Their structures were established by a combination
of two-dimensional NMR spectroscopic analyses and by chemical synthesis. 3-Hydroxyneogrifolin
and 1-formyl-3-hydroxy-neogrifolin showed more potent antioxidative activity properties
than either alpha-tocopherol or BHA.