Pigments of Gnomonia erythrostoma. Part II. Epierythrostominol and epideoxyerythrostominol

Abstract
Epierythrostominol and epideoxyerythrostominol have been isolated from cultures of Gnomonia erythrostomaand shown to be 3,4-dihydro-4,5,10-trihydroxy-2-(2-hydroxypropyl)-8-methoxy-2H-naphtho[2,3-b]pyran-6,9-quinone (3) and the side-chain 2-epimer (5) of deoxyerythrostominol (2), respectively.

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