Processes of making and crystalline forms of a mdm2 inhibitor

Abstract

The present invention provides processes for making 2-((3R,5R,6S)-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-((S)-1-(isopropylsulfonyl)-3-methylbutan-2-yl)-3-methyl-2-oxopiperidin-3-yl)acetic acid as well as intermediates and processes for making the intermediates. Also provided are crystalline forms of the compound and the intermediates.

1 - 12 . (canceled) 
     
     
         13 . A process for making 
       
         
           
           
               
               
           
         
         the process comprising: reacting 
       
       
         
           
           
               
               
           
         
         under dehydrating conditions with 
       
       
         
           
           
               
               
           
         
         to form 
       
       
         
           
           
               
               
           
         
       
     
     
         14 . The process of  claim 14 , wherein the dehydrating conditions are azeotropic distillation with toluene. 
     
     
         15 . A process of making 
       
         
           
           
               
               
           
         
         the process comprising: reacting 
       
       
         
           
           
               
               
           
         
         with 
       
       
         
           
           
               
               
           
         
         to form 
       
       
         
           
           
               
               
           
         
         wherein X is CF 3 SO 3   − or 
       
       
         
           
           
               
               
           
         
       
     
     
         16 . (canceled) 
     
     
         17 . (canceled) 
     
     
         18 . A process of making 
       
         
           
           
               
               
           
         
         the process comprising reacting 
       
       
         
           
           
               
               
           
         
         in presence of a base, to form 
       
       
         
           
           
               
               
           
         
         oxidizing 
       
       
         
           
           
               
               
           
         
         to form 
       
       
         
           
           
               
               
           
         
         which is further converted to 
       
       
         
           
           
               
               
           
         
       
     
     
         19 .- 38 . (canceled) 
     
     
         39 . The process of  claim 18 , wherein the base is sodium tert-butoxide.