AIDS-132514 AIDS132514 Ethyl (3-(2-(4-((((((5-(((ethoxycarbonyl)amino)carbonyl)-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl)acetyl)amino)acetyl)amino)acetyl)-1-piperazinyl)ethyl)-2,6-dioxo-1,6-dihydro-5(2H)-pyrimidinyl)carbonyl\tcarbamate NSC626639