(5-carboxy-methyl-2,6-dioxoperhydro-1,5-diazocin-1-yl)acetic acid 、
N-Boc-哌嗪 在
O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 0.25h,
生成 1,5-bis-[2-oxo-2-(4-tert-butyloxycarbonylpiperazin-1-yl)ethyl]perhydro-1,5-diazocin-2,6-dione