(5R)-4-(4-[3-(2-methoxybenzyloxy)propoxy]phenyl)-3-oxo-5-trifluoromethanesulfonyloxypiperazine-1-carboxylic acid tert-butyl ester 在
sodium azide 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 18.0h,
以35%的产率得到(3R)-3-azidomethyl-4-(4-[3-(2-methoxybenzyloxy)propoxy]phenyl)-5-oxopiperazine-1-carboxylic acid tert-butyl ester