4-[17-Acetylimino-9-(4-dimethylamino-3-hydroxy-6-methyl-tetrahydro-pyran-2-yloxy)-3-ethyl-2-hydroxy-2,6,8,10,16,18-hexamethyl-5,7-dioxo-4,11,15-trioxa-bicyclo[8.5.4]nonadec-13-ylideneaminooxymethyl]-benzamide AIDS-185044 AIDS185044