Structure of sawaranin: A decarboxylated ascorbigen in the heartwood of Chamaecyparis pisifera
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Add time:07/17/2019 Source:sciencedirect.com
The structure of sawaranin which had been isolated from the heartwood of Chamaecyparis pisifera was reexamined. The structure as a decarboxylated ascorbigen, (3S,4R,6R,7S)-5,8-epoxy-3-p-hydroxyphenyl-5,6,7-trihydroxyoctan-1,4-olide, was determined by spectral analyses of sawaranin and its derivatives and by chemical degradation of monomethylsawaranin into d-p-anisylsuccinic acid and l-threose. Further, sawaranin was synthesized by decarboxylative hydrolysis of the product of the reaction of l-ascorbic acid with methyl 3-hydroxy-3-p-hydroxyphenylpropionate.
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