4-{2-[6-(3-amino-propylamino)-pyrido[3,2-d] pyrimidin-4-ylamino]-phenoxy}-butyric acid 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,
生成 7H,21H-4,6-ethanediylidenepyrimido [4,5-b] [15,1,4,6, 10] benzoxa-tetraazacycloheptadecin-12 (13H)-one, 8,9,10,11,14,15-hexahydro-