Page 168 - Medicinal Chemistry Self Assessment
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4.  The mechanism of action of this class of to interact with the ATP-sensitive potassium groups.
                          Answer

                                                                    B
                                                        A
                                                                          C      D
                                                                 Tolbutamide

                       5.  Tolbutamide has a half-life of 4.5 to 6.5 hourssignificantly longer half-life than tolbutamide.
                                                                    2.12  Chlorpropamide and Other Sulfonylureas        157
                          Answer


                     Metabolism of Tolbutamide


                                                       Z oxidation






                                                     Z-1 oxidation
                         Benzylic
                         oxidation





                                                        1. Alcohol
                                                            dehydrogenase

                                                        2. Aldehyde
                                                            dehydrogenase


                  Metabolism of Chlorpropamide


                                                    Z oxidation






                                                  Z-1 oxidation


                       Electron withdrawing
                       halogen prevents
                       aromatic oxidation
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