1-(2-ethylamine)-4,7,10-tris(tert-butoxycarbonylmethyl)-1,4,7,10-tetraazacyclotetradecane 、
磷酸吡哆醛 以
甲醇 为溶剂,
反应 4.0h,
以85%的产率得到1,4,7-tris(tert-butoxycarbonylmethyl)-10-{2-[(3-hydroxy-2-methyl-5-phosphonooxy-methyl-pyridin-4-ylmethylene)-amino]-ethyl}-1,4,7,10-tetraazacyclododecane