tert-butyl (2S)-6-[4-[2-methoxy-5-[(1S)-2-(methylamino)-1-[[(2R)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoyl]amino]-2-oxoethyl]phenyl]triazol-1-yl]-2-(phenylmethoxycarbonylamino)hexanoate 在
(benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 、
N,N-二异丙基乙胺 、
三氟乙酸 作用下,
以
二氯甲烷 、
N,N-二甲基甲酰胺 为溶剂,
反应 27.0h,
生成 benzyl N-[(10S,13R,16S,30S,33R,36S)-20,40-dimethoxy-13,33-dimethyl-16,36-bis(methylcarbamoyl)-11,14,31,34-tetraoxo-30-(phenylmethoxycarbonylamino)-3,4,5,12,15,23,24,25,32,35-decazapentacyclo[35.3.1.12,5.117,21.122,25]tetratetraconta-1(40),2(44),3,17(43),18,20,22(42),23,37(41),38-decaen-10-yl]carbamate