AIDS-148036 AIDS148036 Ac-Ala-Lys(PO3Et2)-Val-OEt Ethyl 10-((2-(acetylamino)propanoyl)amino)-4-ethoxy-13-isopropyl-11-oxo-3-oxa-5,12-diaza-4-phosphatetradecan-14-oate 4-oxide NSC679187