Abstract
New syntheses of the lichen
depsidone 8-hydroxy-3-methoxy-1,4,6- trimethyl-11-oxo-11H-dibenzo-[b,e][1,4]dioxepin-7-carboxylic acid (notatic acid) (1) are
described. The synthesis of 3,8-dihydroxy- 1,4,6-trimethyl-11-oxo-11H-dibenzo[b,e][1,4]dioxepin-7carboxylc acid (2) is described. It was
identical with the depsidone nornotatic acid isolated from the lichen Parmelia
weberi Hale.
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6 articles.
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