英文名称
                        (S)-2-{2-[(R)-2-(2-{(S)-2-[(R)-2-Amino-3-(4-methoxy-benzylsulfanyl)-propionylamino]-3-hydroxy-propionylamino}-acetylamino)-3-(4-methoxy-benzylsulfanyl)-propionylamino]-acetylamino}-6-benzyloxycarbonylamino-hexanoic acid benzyl ester; compound with trifluoro-acetic acid