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Comparative Study
. 1987 Jan;40(1):1-6.
doi: 10.7164/antibiotics.40.1.

Identification of novel erythromycin derivatives in mother liquor concentrates of Streptomyces erythraeus

Free article
Comparative Study

Identification of novel erythromycin derivatives in mother liquor concentrates of Streptomyces erythraeus

I O Kibwage et al. J Antibiot (Tokyo). 1987 Jan.
Free article

Abstract

The identification of five novel compounds, pseudo-erythromycin A-6,9-hemiketal, 8,9-anhydro-pseudo-erythromycin A-6,9-hemiketal, 8,9-anhydro-pseudo-N-demethylerythromycin A-6,9-hemiketal, 5-O-beta-D-desosaminylerythronolide A and 15-nor-erythromycin C, in mother liquor concentrates of Streptomyces erythraeus is described. The pseudo-erythromycin derivatives are characterized by a 12-membered macrocyclic ring as a result of C13----C11 trans-lactonization. The five compounds have very little antimicrobial activity.

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