(4'R)-N-benzyl-N,N-dimethyl-N-([2-(2',2'-dimethyl-4'-phenyl-1',3'-oxazolidin-3'-yl)-2-oxo]ethyl)ammonium bromide 在
potassium tert-butylate 作用下,
以
四氢呋喃 为溶剂,
反应 4.0h,
以84%的产率得到(2S,4'R)-N,N-dimethyl-2-(2',2'-dimethyl-4'-phenyl-1',3'-oxazolidin-3'-yl)-1-(2-methylphenyl)-2-oxo-ethanamine