The Journal of Antibiotics
Online ISSN : 1881-1469
Print ISSN : 0021-8820
PRODUCTION OF A NOVEL RED PIGMENT, RUBROLONE, BY STREPTOMYCES ECHINORUBER SP. NOV.
II. CHEMISTRY AND STRUCTURE ELUCIDATION
W. SCHÜEPJ. F. BLOUNTT. H. WILLIAMSA. STEMPEL
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1978 Volume 31 Issue 12 Pages 1226-1232

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Abstract

Streptomyces echinoruber sp. nov. produces several red pigments. The major component, rubrolone, has been identified as 8(R), 9(R), 10(S), 10a(R)-tetrahydro-9, 10, 1Oa, 11-tetrahydroxy-3, 8-dimethyl-l-propyl-6aH(S)-pyrano[2'', 3'': 5', 4]furo[2', 3': 5, 6]azuleno[2, 3-c]pyridine-5, 13-di one (1) by single crystal X-ray analysis of a suitable derivative. A second pigment, B, is probably structurally closely related.

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