tri-tert-butyl 11-(4-(bromomethyl) benzyl)-1,4,8,11-tetraazacyclotetradecane-1,4,8-tricarboxylate 、
1-乙酰哌嗪 、
potassium carbonate 在
silica gel 、
methanol-dichloromethane 作用下,
以
乙腈 为溶剂,
反应 1.0h,
以to give the title compound as an oil (300 mg, 86%)的产率得到1-[4-(4-acetyl-1-piperazinomethyl)phenylmethyl]-4,8,11-tri-(t-butoxycarbonyl)-1,4,8,11-tetraazacyclotetradecane