109517-89-7

L-Proline,1-[N-[N-[N-[N-[N-[N-[N-[N-[N-[(1,1-dimethylethoxy)carbonyl]-L-tryptophyl]-L-isoleucyl]-L-alanyl]-2-methylalanyl]-L-isoleucyl]-L-valyl]-2-methylalanyl]-L-leucyl]-2-methylalanyl]-, methyl ester