9H-Imidazo[1,2-d]dipyrido[2,3-b:3',2'-f][1,4]diazepine, 12-[2-[(2,3-dihydro-3,3-dimethyl-1,1-dioxido-1,2-benzisothiazol-5-yl)oxy]ethyl]-9-ethyl-5-methyl- AIDS-210663 AIDS210663