145031-45-4 AIDS-045146 AIDS045146 Cbz-Tyr-Val-Sta-Ala-Sta-NH2 L-Valinamide, N-[(phenylmethoxy)carbonyl]-L-tyrosyl-N-[4-[[2-[[4-amino-2-hydroxy-1-(2-methylpropyl)-4-oxobutyl]amino]-1-methyl-2-oxoethyl]amino]-2-hydroxy-1-(2-methylpropyl)-4-oxobutyl]-, stereoisomer Pepstatin A, 1-[N-[(phenylmethoxy)carbonyl]-L-tyrosine]-5-[(3S,4S)-3-hydroxy-6-methyl-4-aminoheptanamide]-