15-(Boc-氨基)-4,7,10,13-四氧杂十五烷酸 、
rac-2-piperidin-4-yl-1,2,4,10-tetrahydro-3-oxa-10-azaphenanthren-9-one trifluoroacetate 在
O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
N-甲基吡咯烷酮 为溶剂,
反应 18.0h,
以52%的产率得到rac-(2-{2-[2-(2-{3-oxo-3-[4-(9-oxo-1,4,9,10-tetrahydro-2H-3-oxa-10-azaphenanthren-2-yl)piperidin-1-yl]propoxy}ethoxy)ethoxy]ethoxy}ethyl)carbamic acid tert-butyl ester