129816-93-9 AIDS-029487 AIDS029487 L-Tyrosine, N-[N-[N-[N-[N-[N-(4-bromophenyl)-N2-[N-[N-[[1-(2-hydroxy-1-oxopropyl)-2-piperidinyl]carbonyl]-N-methyl-L-valyl]-L-valyl]-N2-methyl-L-asparaginyl]-N-methyl-L-isoleucyl]-N-methyl-L-isoleucyl]glycyl]-N-methyl-L-valyl]-O-methyl-, .delta.1-lactone, [R-(R*,S*)]-