Maridomycin, a new macrolide antibiotic. I. Taxonomy and fermentation.
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In this article, 4.9-Propionyl-maridomycin (PMDM) and maridomycin (MDM) were transformed into 4.4-deacyl-9-propionylmaridomycin (4.4)-propionic acid (PAA) and 4.5-probionyl maridomyscin (POMDM), respectively, by incubation with rat liver homogenates in pH 7.2 buffer solution.Abstract:
9-Propionylmaridomycin (PMDM) and maridomycin (MDM) were transformed into 4"-deacyl-9-propionylmaridomycin (PMDM-M) and 4"-deacylmaridomycin (MDM-M), respectively, by incubation with rat liver homogenates in pH 7.2 buffer solution. The structures of these products were elucidated from their physicochemical properties and the result of chemical conversions into the known derivatives of MDM. Furthermore, PMDM-M was isolated as a main metabolite from the urine of rats treated with PMDM by oral route. On the other hand, from human urine after oral administration of PMDM, three metabolites were recovered and identified as PMDM-M, MDM and MDM-M by direct comparison.read more
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Makrolide. Neuere Fortschritte ihrer Chemie und Biochemie
TL;DR: In den letten Jahren haben sich Chemie und Biochemie der Makrolide eindrucksvoll weiterentwickelt. In as discussed by the authors, die wesentlichen Arbeiten auf den Gebieten der Strukturermittlung, der chemischen Synthese, der biochemie, der antimikrobiellen Aktivitat vor allem the Polyoxomakrolid-Antibiotica zusammenzufassen.
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Astonishing diversity of natural surfactants: 2. Polyether glycosidic ionophores and macrocyclic glycosides.
TL;DR: More than 300 interesting and unusual natural surfactants are described in this review article, including their chemical structures and biological activities.
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Microbial transformation of antibiotics
TL;DR: Streptomyces sp.
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Chemical Modification of Maridomycin, a New Macrolide Antibiotic
Setsuo Harada,Masayuki Muroi,Masahiro Kondo,Kanji Tsuchiya,Tai Matsuzawa,Takeshi Fugono,Toyokazu Kishi,Jisaburo Ueyanagi +7 more
TL;DR: 9-Propionylmaridomycin showed the most favorable biological properties and demonstrated improved therapeutic effects together with higher blood levels and low toxicity.
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Maridomycin, a new macrolide antibiotic. 3. In vitro and in vivo antibacterial activity.
TL;DR: This antibiotic was as effective as leucomycin on Gram-positive bacterial infection in mice by subcutaneous, intraperitoneal or intravenous administration and was effective against clinically isolated macrolide-resistant group B and C staphylococci.
References
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The Utilization of Carbon Compounds by Some Actinomycetales as an Aid for Species Determination.
T. G. Pridham,David Gottlieb +1 more
TL;DR: Taylor and Decker (1947) showed that various plant pathogenic actinomycetes could be separated from nonpathogenic isolates on the basis of their reactions on carbon compounds, as well as other criteria.
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Erythromycin. I. Properties and Degradation Studies1
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Zur Systematik der Actinomyceten
TL;DR: An investigation and classification of the streptomycetes producing macrolides, is added; the single species are critically revised.
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