AIDS-164991 AIDS164991 L-Leucine, N-methyl-N-(1-oxo-3-phenylpropyl)-L-valyl-L-isoleucyl-N4,N4-bis(1-methylethyl)asparaginyl-L-.alpha.aspartyl- PhCH2CH2CO-N-Me-Val-Ile-NHCH[CH2CO-N(iPr)2]-CO-Asp-Leu-OH