2-(4-(4-Nitrophenoxy)butyl)thiophene 、
N-BOC-2-甲基-L-丝氨酸 、
O-(7-azabenzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate 以
N,N-二异丙基乙胺 为溶剂,
以to yield 280 mg product (62% yield)的产率得到(S)-2-(4-(4-(thiophen-2-yl)butoxy)phenylcarbamoyl)-1-hydroxypropan-2-ylcarbamic acid tertiary butyl ester