3-Keto-11,12-carbazate derivatives of 6-O-methylerythromycin A synthesis and in vitro activity.

作者: GEORGE GRIESGRABER , YAT SUN OR , DANIEL T. W. CHU , ANGELA M. NILIUS , PAULINE M. JOHNSON

DOI: 10.7164/ANTIBIOTICS.49.465

关键词: AcylationCombinatorial chemistryStereochemistryStructure–activity relationshipAntibacterial activityIn vitroAlkylationBacteriaErythromycinBiologyAntibacterial agent

摘要: The 11,12-cyclic carbazate of 3-keto-6-O-methylerythromycin A (4) was prepared. This compound shows in vitro antibacterial activity comparable to erythromycin (1) against erythromycin-susceptible organisms and increased some erythromycin-resistant organisms. Using 4 as a lead, series analogues prepared by acylation or alkylation the nitrogen. Several N-alkylated derivatives showed dramatically improved both susceptible resistant compared A.

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