(5-carboxy-methyl-2,6-dioxoperhydro-1,5-diazocin-1-yl)acetic acid 、
1-[3-(4-tert-butyloxycarbonylaminomethyl-phenyl)propionyl]piperazine 、 O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 在
N,N-二异丙基乙胺 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 3.17h,
生成 1,5-bis-{2-[4-(3-(4-tert-butoxycarbonylaminomethylphenyl)propionyl)piperazin-1-yl]-2-oxoethyl}perhydro-1,5-diazocin-2,6-dione