Ring contraction of oleandrose on the macrolide antibiotic oleandomycin with [(Methoxycarbonyl)sulfamoyl]triethylammonium hydroxide inner salt
- PMID: 7108908
- DOI: 10.1021/jm00349a025
Ring contraction of oleandrose on the macrolide antibiotic oleandomycin with [(Methoxycarbonyl)sulfamoyl]triethylammonium hydroxide inner salt
Abstract
Ring contraction of the neutral oleandrose sugar in the 14-membered-ring macrolide antibiotic oleandomycin (2) has been accomplished using [(methoxycarbonyl)sulfamoyl]triethylammonium hydroxide inner salt (1). The product of this interesting rearrangement, after methanolic hydrolysis of the 2'-acetate, is the 11-acetyl-3-O-(3"-methoxy-4"-vinylfuranosyl)oleandomycin (12). The in vitro activity of furanoside 12 is only moderately less than that of 11-acetyloleandomycin (13).