4-(acetyloxy)-6-((3,6-dideoxy-4-O-(2,6-dideoxy-3-C-methyl-4-O-(3-methyl-1-oxobutyl)-alpha-L-ribo-hexopyranosyl)-3-(dimethylamino)-beta-D-glucopyranosyl)oxy)-10-hydroxy-5-methoxy-9,16-dimethyl-2-oxooxacyclohexadeca-11,13-diene-7-acetaldehyde
A macrolide antibiotic from Streptomyces narbonensis. The drug has antimicrobial activity against a wide spectrum of pathogens.