1,4,8-三(叔丁氧碳酰)-1,4,8,11-四氮杂环十四烷 、
[13-(4-nitrobenzyl)-4,8-bis(chloromethyl)benzoyl]-1,4,8,11-tetraazacyclotetradecane-12,14-dione 在
caesium carbonate 、 potassium iodide 作用下,
以
乙腈 为溶剂,
反应 24.0h,
以47%的产率得到Tritert-butyl 11-[[4-[6-[(4-nitrophenyl)methyl]-5,7-dioxo-11-[4-[[4,8,11-tris[(2-methylpropan-2-yl)oxycarbonyl]-1,4,8,11-tetrazacyclotetradec-1-yl]methyl]benzoyl]-1,4,8,11-tetrazacyclotetradecane-1-carbonyl]phenyl]methyl]-1,4,8,11-tetrazacyclotetradecane-1,4,8-tricarboxylate