A process for the preparation of a compound of the Formula I
wherein
the process comprising the step of treating a compound of the Formula II
with a fluorinating agent at a temperature of about 60° to about 120° C. in the presence of an organic solvent to form a compound of the Formula I; wherein:
X, R or R′ can optionally be independently protected with a protecting group which is substantially stable to the fluorinating agent; and where X, R, and R′ are described herein.
一种制备式I化合物的方法,其中该方法包括在有机溶剂存在下,使用
氟化剂处理式II化合物,处理温度为约60℃到约120℃,以形成式I化合物;其中,X、R或R'可以选择性地独立地使用保护基进行保护,该保护基对
氟化剂具有相当的稳定性;并且X、R和R'如本文所述。