(5R,7R,8R,9R,11R,13R,14R)-8-[(3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-2-ethyl-9-methoxy-1,5,7,9,11,13-hexamethyl-15-[4-(4-pyridin-3-ylimidazol-1-yl)butyl]-3,17-dioxa-15-azabicyclo[12.3.0]heptadecane-4,6,12,16-tetrone
Telithromycin is a ketolide, a novel form of macrolide antibiotic that is recommended for treatment of community acquired pneumonia. Telithromycin was approved for use in the United States in 2004 and subsequently linked to several cases of severe drug induced liver injury.