(6S,14S,1R,2R,4R,7R,8R,10R,13R)-7-[(2S,4S,3R,6R)-4-(Dimethylamino)-3-hydroxy-6-methylperhydropyran-2-yloxy]-17-aza-13-ethyl-2,4,6,8,10,14-hexamethyl-12,15-dioxa-6-[(2-(3-quinolyl)cyclopropyl)methoxy]bicyclo[12.3.0]heptadecane-3,9,11,16-tetraone 6-O-Substituted-11,12 carbamate ketolide A-224281 AIDS-093608 AIDS093608