AIDS-097259 AIDS097259 [S-[1R*,2S*(2S*,3R*)]]-N-[3-[[3-[[(1,1-Dimethylethoxy)carbonyl)amino]-2-hydroxy-4-phenylbutyl]amino]-2-hydroxy-1-(phenylmethyl)propyl]-N,N-methyl-N,N[phenylmethoxy) carbonyl]-L-valinamide