11,12-Dideoxy-3-des(2,6-dideoxy-3-C,3-O-dimethyl-alpha-L-altropyranosyloxy)-6-O-methyl-3-oxo-12,11-(oxycarbonylimino)-N11-[4-[4-(3-pyridyl)imidazol-1-yl]butyl]erythromycin A 173838-31-8 (DELETED) 191114-48-4 AIDS-086689 AIDS086689 Erythromycin, 3-de[(2,6-dideoxy-3-C-methyl-3-O-methyl-.alpha.-L-ribo-hexopyranosyl)oxy]-11,12-dideoxy-6-O-methyl-3-oxo-12,11-[oxycarbonyl[[4-[4-(3-pyridinyl)-1H-imidazol-1-yl]butyl]imino]]- HMR3647 RU66647 Telithromycin