AIDS-115674 AIDS115674 L-Leucinamide, 3-[(2-ethoxy-2-oxoethyl)thio]-N-[(2-methylpropoxy)carbonyl]-L-valyl-N1-[1-[2-[[2-[[(S)-carboxyphenylmethyl]amino]-2-oxoethyl]amino]-1,2-dioxoethyl]butyl]-