AIDS-220583 AIDS220583 Butanoic acid, 2-ethyl-2-[[[4-[2-(11-ethyl-6,11-dihydro-5-methyl-6-oxo-5H-dipyrido[2,3-e:3',2'-b][1,4]diazepin-8-yl)ethoxy]-3-methylbenzoyl]amino]methyl]-