Pigments of Gnomonia erythrostoma. Part I. The structures of erythrostominone, deoxyerythrostominone, and deoxyerythrostominol
- 1 January 1972
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- Vol. 3, 380-390
- https://doi.org/10.1039/p19720000380
Abstract
Three antibacterial pigments have been isolated from deep cultures of Gnomonia erythrostoma. By a combination of spectroscopic investigation and chemical degradation erythrostominone has been shown to be 2-acetonyl-3,4-dihydro-4,5,10-trihydroxy-8-methoxy-2H-naphtho[2,3-b]pyran-6,9-quinone (1); deoxyerythrostominone is its 4-deoxy-derivative (2), and deoxyerythrostominol is 3,4-dihydro-5,10-dihydroxy-2-(2-hydroxypropyl)-8-methoxy-2H-naphtho[2,3-b]pyran-6,9-quinone (21 ).Keywords
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