6H-Dipyrido[2,3-e:3',2'-b][1,4]diazepin-6-one, 11-ethyl-5,11-dihydro-8-[2-[(3',5'-difluoro-4'-hydroxy-3-methyl[1,1'-biphenyl]-4-yl)oxy]ethyl]-5-methyl- AIDS-220522 AIDS220522