Ex Parte Zhang et al - Page 15



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

                optionally partially or fully halogenated and optionally                            
                substituted with one to three C  alkyl groups;1-3                                             
           d) C  cycloalkenyl, selected from the group consisting of5-7                                                                                
                cyclopentenyl, cyclohexenyl, cyclohexadienyl, cycloheptenyl,                        
                cycloheptadienyl, bicyclohexenyl and bicycloheptenyl, wherein                       
                such cycloalkenyl group is optionally substituted with one to                       
                three C  alkyl groups;1-3                                                                         
           e) acetyl, aroyl, alkoxycarbonylalkyl and phenylsulfonyl; and                            
           f) C  branched or unbranched alkyl optionally partially or1-6                                                                                
                fully halogenated;                                                                  
           R  and R  taken together optionally form a fused phenyl or1       2                                                                               
           pyridinyl ring;                                                                          
                   each R  and R  is independently selected from the group8      13                                                                 
           consisting of:                                                                           
           hydrogen and C  branched or unbranched alkyl optionally1-4                                                                     
           partially or fully halogenated;                                                          
                   each R , R , R , R , R , R , R  and R  is independently4  5  6  7  9  10  11             12                                      
           selected from the group consisting of morpholine, piperidine,                            











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