6-二甲氧基甲基烟酸钠盐 、 (+/-)-2,7,12-Tris(aminoethylcarbamoylmethoxy)-3,8,13-trimethoxy-10,15-dihydro-5H-tribenzo
cyclononene 在
O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 、 N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
以45%的产率得到N-[2-[[2-[[12,19-bis[2-[2-[[6-(dimethoxymethyl)pyridine-3-carbonyl]amino]ethylamino]-2-oxoethoxy]-6,13,20-trimethoxy-5-tetracyclo[15.4.0.03,8.010,15]henicosa-1(21),3,5,7,10,12,14,17,19-nonaenyl]oxy]acetyl]amino]ethyl]-6-(dimethoxymethyl)pyridine-3-carboxamide