Ex Parte Zhang et al - Page 16



           Appeal No. 2003-0061                                                                     
           Application No. 09/611,109                                                               

           t is 0, 1 or 2; and                                                                      
           X is O or S;                                                                             
           said process comprising:                                                                 
                 reacting of intermediate of formula (II) with intermediate                         
           of formula(IV) in the presence of a suitable base said reaction                          
           taking place in a suitable solvent at a suitable temperature for                         
           a reaction time of about 1.5 hours:                                                      







           wherein Ra is a C  halocarbon, Ar , Ar , X, L and Q are as2-3                 1    2                                           
           defined hereinabove; to produce a compound of formula (I).                               















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