2-[2-[[2-[2-[[2-[2-[[2-[[2-(2,4-Dioxopyrimidin-1-yl)acetyl]-[2-[6-[(2-methylpropan-2-yl)oxycarbonylamino]hexanoylamino]ethyl]amino]acetyl]amino]ethyl-prop-2-enoxycarbonylamino]acetyl]amino]ethyl-prop-2-enoxycarbonylamino]acetyl]amino]ethyl-prop-2-enoxycarbonylamino]acetic acid 、 在
(benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
生成 Tert-butyl 6-[[2-[[2-(2-amino-6-phenylmethoxypurin-9-yl)acetyl]-[2-[[2-[2-[[2-[2-[[2-[2-[[2-[2-[[2-[[2-(2,4-dioxopyrimidin-1-yl)acetyl]-[2-[6-[(2-methylpropan-2-yl)oxycarbonylamino]hexanoylamino]ethyl]amino]acetyl]amino]ethyl-prop-2-enoxycarbonylamino]acetyl]amino]ethyl-prop-2-enoxycarbonylamino]acetyl]amino]ethyl-prop-2-enoxycarbonylamino]acetyl]amino]ethyl-[2-[6-(phenylmethoxycarbonylamino)purin-9-yl]acetyl]amino]acetyl]amino]ethyl]amino]acetyl]amino]hexanoate