curtisian C A ring assembly that consists of 1,4-diphenylbenzene substituted by acetyloxy group at position 3', hydroxy groups at positions 4 and 4'' a (3-hydroxybutanoyl)oxy group at position 6' and [3-(acetyloxy)butanoyl]oxy groups at positions 2' and 5' respectively. It is isolated from the fruit body of the mushroom Paxillus curtisii and exhibits radical scavenging activity.  | 
 
 
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