(S)-2-[2-((S)-3-Benzyloxy-2-{(S)-2-[(S)-3-benzyloxycarbonyl-2-(2-tert-butoxycarbonylamino-acetylamino)-propionylamino]-propionylamino}-propionylamino)-acetylamino]-pentanedioic acid dibenzyl ester
N-Boc-β-benzyl-L-aspartyl-L-alanyl-O-benzyl-L-seryl-glycyl-L-glutamic acid dibenzyl ester
N-Boc-L-alanyl-O-benzyl-L-seryl-glycyl-L-glutamic acid dibenzyl ester
N-Boc-O-benzyl-L-seryl-glycyl-L-glutamic acid dibenzyl ester
Asp(OBzl)-Ala-Ser(OBzl)-Gly-Glu(OBzl)-OBzl