2-胍基苯并咪唑 、 tri-tert-butyl 11-(4-(bromomethyl) benzyl)-1,4,8,11-tetraazacyclotetradecane-1,4,8-tricarboxylate 在
silica gel 、
methanol-dichloromethane 作用下,
以
乙腈 为溶剂,
反应 0.5h,
以to give the title compound as a yellow gum, (115 mg, 34%)的产率得到1-[4-(2-guanidinobenzimidazol-1-ylmethyl)phenylmethyl]-4,8,11-tri-(t-butoxycarbonyl)-1,4,8,11-tetraazacyclotetradecane