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3-Hydroxyphysodic acid. Chemical corroboration of the structure of this lichen depsidone

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Date

1976

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Abstract

The published structure of the lichen depsidone?physodol? has been shown to be incorrect. This compound is in fact identical with 3-hydroxyphysodic acid (2) (1?-carboxy-2?, 3, 4-trihydroxy-6-(2?-oxoheptyl)-6?-pentyldepsidone). Chemical evidence is presented to confirm the isocoumarin structure (10) for that of the key decarboxy anhydro derivative obtained by degradation of 3-hydroxyphysodic acid, and thus to disprove the alternative 5-hydroxy formulation suggested for this compound.

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https://dspace-test.anu.edu.au/handle/1885/733727779

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DevOps Pure Testing

Source

Australian Journal of Chemistry

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DOI

10.1071/CH9762693

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