STRUCTURE ACTIVITY RELATIONSHIP IN SIXTEEN MEMBERED MACROLIDE ANTIBIOTICS
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چکیده
منابع مشابه
Structure activity relationship in sixteen membered macrolide antibiotics.
Leucomycin (Kitasamycin) is a macrolide antibiotic having activity against gram-positive bacteria and certain Mycoplasma strains. Comparison of antimicrobial activities of the variuos leucomycin congeners (I-X) indicates a clear structure-activity relationship among them. The acylation of the 3-hydroxy group somewhat reduces the in vitro activity while the acylation of the 4"-hydroxy group of m...
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Five novel 3-hydroxyl derivatives of sixteen-membered macrolide possessing 4-O-acyl-alpha-L-cladinose as a neutral sugar moiety were synthesized by using a combination of structurally stable silyl acetal protection and selective hydrogenolysis of a 3"-methylthiomethyl ether to a 3"-OMe group. Several derivatives having n-butyryl, i-butyryl and n-valeryl substituent at the 4"-OH group exhibited ...
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A complex of 18-membered macrolide antibiotics has been discovered in the fermentation broth of strain AB718C-41. The producing culture, isolated from a soil sample collected in Hamden, Connecticut, was identified as a strain of Dactylosporangium aurantiacum and was designated D. aurantiacum subsp. hamdenesis subsp. nov. The antibiotic complex was produced in a New Brunswick 150-liter fermentor...
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The effect of four macrolide antibiotics (roxithromycin, clarithromycin, erythromycin, and azithromycin) on the generation of some mediators and cytokines involved in the inflammatory process has been studied both in vivo and in vitro. Rat carrageenin pleurisy was used as a model of acute inflammation, and the macrolides were administered (10, 20, and 40 mg/kg p.o.) 1 h before the carrageenin c...
متن کاملSetamycin, a 16-membered macrolide antibiotic. Identification and nematocidal activity.
Setamycin which has been isolated by Omura et al.,1*^ is a macrolide antibiotic possessing activities against trichomonads, some fungi and Gram-positive bacteria. The morphological and physiological properties of its producing organism led to a new genus designated as Kitasatosporia setae of the order ActinomycetalesP Recently, many unusual 16-memBered macrolides4) such as hygrolidins,5»6) L681...
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ژورنال
عنوان ژورنال: The Journal of Antibiotics
سال: 1974
ISSN: 0021-8820,1881-1469
DOI: 10.7164/antibiotics.27.221