二碳酸二叔丁酯 、
(S)-3-(4-Aminomethyl-5-hydroxy-6-methyl-pyridin-3-yl)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-propionic acid 在
sodium carbonate 作用下,
以
1,4-二氧六环 为溶剂,
反应 16.0h,
以93%的产率得到(S)-3-[4-(tert-Butoxycarbonylamino-methyl)-5-tert-butoxycarbonyloxy-6-methyl-pyridin-3-yl]-2-(9H-fluoren-9-ylmethoxycarbonylamino)-propionic acid