[EN] METHOD FOR PREPARING 17 alpha-ACETOXY-11beta-(4-N,N-DIMETHYLAMINOPHENYL)-19-NORPREGNA-4,9-DIENE-3,20-DIONE, INTERMEDIATES THEREOF, AND METHODS FOR THE PREPARATION OF SUCH INTERMEDIATES [FR] PROCEDE DE PREPARATION DE 17 DOLLAR G(A)-ACETOXY-11 DOLLAR G(B)-(4-N,N-DIMETHYLAMINOPHENYL)-19-NORPREGNA-4,9-DIENE-3,20-DIONE, D'INTERMEDIAIRES DE CEUX-CI ET PROCEDES DE PREPARATION DESDITS INTERMEDIAIRES
Method for preparing 17 alpha-acetoxy-11beta-(4-n,n-dimethylaminophenyl)-19-norpregna-4,9-diene-3,20-dione, intermediates thereof, and methods for the preparation of such intermediates
申请人:Kim K. Hyun
公开号:US20060111577A1
公开(公告)日:2006-05-25
Methods for the preparation of the 19-norprogesterone of formula I and its intermediates, in crystalline and amorphous forms.