反应详情

In an analogous manner to that described in Example 1 b), the (RS)-1-(4-hydroxyphenyl)-5-oxo-pyrrolidine-3-carboxylic acid ethyl ester was obtained by reaction of the crude (RS)-1-(4-hydroxyphenyl)-5-oxo-pyrrolidine-3-carboxylic acid with ethanol as a white solid; MS: m/e=248 (M−H)+.