1,3,5-tris-(N-chloroacetyl-N-methyl-4-amino-2-methyl-phenyl)-[1,3,5]triazinane-2,4,6-trione 、
1,4,7,10-四氮杂环十二烷-1,4,7-三乙酸三叔丁酯 在
N,N-二异丙基乙胺 作用下,
以
乙腈 为溶剂,
生成 tert-butyl 2-(4-{[(4-{3,5-bis[2-methyl-4-(N-methyl-2-{4,7,10-tris[2-(tert-butoxy)-2-oxoethyl]-1,4,7,10-tetraazacyclododecan-1-yl}acetamido)phenyl]-2,4,6-trioxo-1,3,5-triazinan-1-yl}-3-methylphenyl)(methyl)carbamoyl]methyl}-7,10-bis[2-(tert-butoxy)-2-oxoethyl]-1,4,7,10-tetraazacyclododecan-1-yl)acetate