Page 141 - Medicinal Chemistry Self Assessment
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130    Medicinal Chemistry Self Assessment



                Answer

                                                                                           Function
                                                                                           Amino Acids That
                                                                          Function         Can Interact with
                                              Character
                                Character     Acidic, Basic, or   Function  Interaction(s)  the Functional
                                                                                           Group via Ion–
                                              Neutral                     Possible with    Dipole Interactions
                  Name of       Hydrophilic                  ↑ Solubility  Biological Target
                  Functional    and/or        Provide pK     and/or       at Physiological   at pH=7.4
                                                       a
                  Group         Hydrophobic   When Relevant  ↑ Absorption  pH=7.4          None Is Acceptable
             A    Ether         Hydrophilic (O)  Neutral    Solubility (O)  H-bonding (A)  Asp, Glu, Lys, Arg
                                Hydrophobic (R)             Absorption (R)  Dipole–dipole
                                                                          Ion–dipole (as the
                                                                          dipole)
             B    Aromatic hydro-  Hydrophobic  Neutral     Absorption    Hydrophobic     None
                  carbon                                                  van der Waals

                                                                          π-π stacking
             C    Aliphatic alkane  Hydrophobic  Neutral    Absorption    Hydrophobic     None
                                                                          van der Waals
                                                    Medicinal Chemistry Self-Assessment Book: Batch Two
             D    Primary amine  Hydrophilic (NH )  Basic   Solubility (NH )  Ion–dipole (as the ion) Ser, Thr, Cys, Tyr, Asn,
                                                                     2 Chapters 1.8 and 2.8
                                          2
                                Hydrophobic (R)  pK  ~9–11  Absorption (R)  Ionic         Glu, His, Trp
                                               a
                                Chapter 1.8/2.8 (remove bold from drug name x2)
             E    Secondary alcohol  Hydrophilic (OH)  Neutral  Solubility (OH)  H-bonding (A + D)  Asp, Glu, Lys, Arg


                                Hydrophobic (R)             Absorption (R)  Dipole–dipole
                                                           E              Ion–dipole (as the
                                                      D                   dipole)     F
             F    Amide         Hydrophilic   A  Neutral    Solubility    H-bonding (A)   Asp, Glu, Lys, Arg
                                (CONH )        B            (CONH )       Dipole–dipole
                                    2
                                                                 2
                                Hydrophobic (R)             Absorption (R)  Ion–dipole (as the
                                                                          dipole)

                                                                    Aliskiren
            2.  Aliskiren is marketed as the pure 2S, 4S, 5S, 7S enantiomer. Circle all of the chiral carbon atoms and
                                                       C

                determine if diastereomeric or geometric isomers are possible.












                                                                  Aliskiren
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