Process for preparing17alpha-acetoxy-11beta-[4-n,n(dimethylamino)phenyl]-21-methoxy-19-norpregna-4,9-diene -3,20-dione, intermediates useful in the process , and processes for preparing such intermediates
PROCESS FOR PREPARING 17ALPHA-ACETOXY-11BETA- 4-N,N-(DIMETHYLAMINO)PHENYL]-21-METHOXY-19-NORPREGNA-4,9-DIENE-3,20-DIONE, INTERMEDIATES USEFUL IN THE PROCESS, AND PROCESSES FOR PREPARING SUCH INTERMEDIATES
申请人:THE GOVERNMENT OF THE UNITED STATES OF AMERICA, as represented by THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES