AIDS-147308 AIDS147308 Diisopropyl 1-((((4,4-bis(trifluoromethyl)-6-(2,2,2-trifluoro-1-(trifluoromethyl)ethyl)-4H-1,3,5-oxadiazin-2-yl)amino)(imino)methyl)(methyl)amino)-2-methylpropylphosphonate NSC676761