(2S)-2-tert-butoxycarbonylamino-3-hydroxy-2-methylpropionic acid 2-(4-octyl-phenyl)-2-oxo-ethyl ester 在
ammonium acetate 作用下,
以
5,5-dimethyl-1,3-cyclohexadiene 为溶剂,
以2.436 g的产率得到(2R)-{2-hydroxy-1-methyl-1-[5-(4-octyl-phenyl)-1H-imidazol-2-yl]-ethyl}-carbamic acid tert-butyl ester