2,3,5,6,8,9,11,12-Octahydro-1,4,7,10,13-benzopentaoxacyclopentadecin-15-yl(2-(2-(2-(2,3,5,6,8,9,11,12-octahydro-1,4,7,10,13-benzopentaoxacyclopentadecin-15-yl(phenyl)phosphoryl)ethoxy)phenoxy)ethyl)ph\tenylphosphine oxide AIDS-140754 AIDS140754 NSC653867