申请人:A. H. Robins Company, Inc.
公开号:US04144245A1
公开(公告)日:1979-03-13
1-Hydrocarbon-3,3-diphenyl-4-hydroxymethyl-2-pyrrolidinones and methods for making them from 4,5-dihydro-3,3-diphenyl-4-hydrocarbylaminomethylfuran-2(3H)ones are disclosed. Methods for making the 4,5-dihydro-3,3-diphenyl-4-hydrocarbylaminomethylfuran-2(3H)ones are also disclosed. The novel compounds are useful intermediates for the preparation of pharmacologically active 4-(4,4-disubstitutedpiperidinylmethyl)-3,3-diphenyl-2-pyrrolidinones.
本发明公开了从4,5-二氢-3,3-二苯基-4-羟基甲基-2-吡咯烷酮制备1-烃基-3,3-二苯基-4-羟甲基-2-吡咯烷酮的方法,同时也公开了制备4,5-二氢-3,3-二苯基-4-烃基氨甲基呋喃-2(3H)酮的方法。这些新化合物是制备药理活性的4-(4,4-二取代哌啶基甲基)-3,3-二苯基-2-吡咯烷酮的有用中间体。