AIDS-145917 AIDS145917 Benzoic acid, 3,3'-[4-[[4-[[2-[[[2,3-bis[(1-oxooctadecyl)oxy]propoxy]hydroxyphosphinyl]oxy]ethyl]amino]-1,4-dioxobutyl]amino]-1-butenylidene]bis[5-chloro-6-methoxy-, dimethyl ester NSC671620