5-Oxo-L-Pro-L-Gln-L-αβAsp-(OBzl)-L-Tyr-L-Thr-Gly-(Cbz-amino)-NH2

N-[N-[N-[O4-benzyl-N-[N2-(5-oxo-L-prolyl)-L-glutaminyl]-L-alpha-aspartyl]-L-tyrosyl]-L-threonyl]-2'-[(benzyloxy)carbonyl]glycinohydrazide