111974-22-2

L-Leucine,N-[N-[N-[N-[N-[N-[(1,1-dimethylethoxy)carbonyl]-O-(phenylmethyl)-L-seryl]-L-valyl]-O-(phenylmethyl)-L-seryl]-O-(phenylmethyl)-L-threonyl]-L-valyl]-,phenylmethyl ester