Ex Parte Zhang et al - Page 12



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

           optionally partially or fully halogenated, halogen,                                      
           methoxycarbonyl and phenylsulfonyl;                                                      

                   R  is selected from the group consisting of3                                                                               

           a) a phenyl, naphthyl or heterocyclic group selected from the                            
                group consisting of pyridinyl, pyrimidinyl, pyrazinyl,                              
                pyridazinyl, pyrrolyl, imidazolyl, pyrazolyl, thienyl, furyl,                       
                tetrahydrofuryl, isoxazolyl, isothiazolyl, quinolinyl,                              
                isoquinolinyl, indolyl, benzimidazolyl, benzofuranyl,                               
                benzoxazolyl, benzisoxazolyl, benzpyrazolyl, benzothiofuranyl,                      
                cinnolinyl, pterindinyl, phthalazinyl, naphthypyridinyl,                            
                quinoxalinyl, quinazolinyl, purinyl and indazolyl wherein such                      
                phenyl, naphthyl or heterocyclic group is optionally                                
                substituted with one to five groups selected from the group                         
                consisting of a C  branched or unbranched alkyl, phenyl,1-6                                                             
                naphthyl, heterocycle selected from the group hereinabove                           
                described, C  branched or unbranched alkyl which is1-6                                                                   










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