91291-35-9 AIDS-045148 AIDS045148 Cbz-Trp-Val-Sta-Ala-Sta-OMe L-Valinamide, N-[(phenylmethoxy)carbonyl]-L-tryptophyl-N-[2-hydroxy-4-[[2-[[2-hydroxy-4-methoxy-1-(2-methylpropyl)-4-oxobutyl]amino]-1-methyl-2-oxoethyl]amino]-1-(2-methylpropyl)-4-oxobutyl]-, stereoisomer Pepstatin A, 1-[N-[(phenylmethoxy)carbonyl]-L-tryptophan]-, methyl ester