[(2S,3R)-2-((R)-2-Benzyloxycarbonylamino-3-benzyloxycarbonylsulfanyl-propionylamino)-3-tert-butoxy-butyrylamino]-acetic acid 、 4-[(S)-2-((S)-2-Amino-6-{benzyloxycarbonyl-[(R)-4-benzyloxycarbonylamino-2-(tetrahydro-pyran-2-yloxy)-butyl]-amino}-hexanoylamino)-2-(tert-butoxycarbonylmethyl-carbamoyl)-ethyl]-imidazole-1-carboxylic acid tert-butyl ester 在
(benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
生成 CBZ-Cys(CBZ)-Thr(O-t-Bu)-Gly-Hpu(N7,N12-di-CBZ,O9-THP)-His(BOC)-Gly-O-tBu