2-Biphenylcarbonyl-Val-Ile-Asp-(NHCH2CH2Ph)-Asp-Leu-OH AIDS-165007 AIDS165007 L-Leucine, N-([1,1'-biphenyl]-2-ylcarbonyl)-L-valyl-L-isoleucyl-N4-(2-phenylethyl)-L-asparaginyl-L-.alpha.aspartyl-