Ex Parte Kleen et al - Page 9



          Appeal No. 2006-0438                                                        
          Application No. 10/319,905                                                  

                    C is selected from the group consisting of -OR,                   
                    -NR R ,-OP(O)(OR ) , a C  monohydroxyalkyl group, a C1 2         3                                                  
                                     2    1-4                            2-4          
                    oligohydroxyalkyl group and a C  alkyl group wherein1-4                                
                    R  and R are defined above and R  is hydrogen or a C1     2                        3                                 
                                                                        1-5           
                    alkyl group;                                                      
                    D is selected from the group consisting of -OR, a                 
                    carboxy group, a C1-22alkoxycarbonyl group, a formyl               
                    group, a group -CH OR and a group -CH -NR  wherein2                     2                         
                                                         2                            
                    R and R  are defined above,2                                                          
                    or one of the corresponding physiologically compatible            
                    salts thereof.                                                    



















                                         A2                                           




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