AIDS-097271 AIDS097271 [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-(2-naphthalenylcarbonyl)-L-valinamide