Methyl 2-[[2-[(4-amino-5-methoxy-5-oxopentanoyl)amino]-6-[[2-[4,7,10-tris[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]-1,4,7,10-tetrazacyclododec-1-yl]acetyl]amino]hexanoyl]amino]-6-[4-(4-iodophenyl)butanoylamino]hexanoate 、
N2-(N,N-dimethylaminomethylene)-10-formylpteroic acid 在
O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 、
三乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 20.5h,
生成 methyl 2-[[2-[[4-[[4-[formyl-[[4-oxo-2-(propan-2-yliminomethylamino)-3H-pteridin-6-yl]methyl]amino]benzoyl]amino]-5-methoxy-5-oxopentanoyl]amino]-6-[[2-[4,7,10-tris[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]-1,4,7,10-tetrazacyclododec-1-yl]acetyl]amino]hexanoyl]amino]-6-[4-(4-iodophenyl)butanoylamino]hexanoate