Page 20 - FPGEE Medicinal and Organic Chemistry Q&A Book
P. 20

Krisman




               270.    Below  is  the  structure  of  Cidofovir  a.     Acyclovir
               (Vistide). It is a nucleotide analogue of cytosine  b.   Griseofulvin
               where cytosine is classified as:                  c.     Idoxuridine
                                                                 d.     Penciclovir
                              NH
                                 2
                                                                 273.   The name of heterocyclic aromatic com-
                          N
                                                                 pound present in Ribavirin is:
                      O       N                                                               O
                                                                                      N
                              CH 2           O                                                C    NH 2
                                                                      H O
                               CH  O   CH 2  P   OH
                                                                               O    N   N
                                             OH
                               CH  OH
                                 2
                            Cidofovir
                                                                        H O         OH
               a.      Pyrimidine base
                                                                            Ribavirin
               b.      Purine base
               c.      Indole base                               a.     Phenol
               d.      Pyrrole base                              b.     Triazole
                                                                 c.     Pyrazole
               271.    The compound shown below may cause:       d.     Benzoic acid


                                 O                               274.   Below is the structure of the very well
                               -        -     +                  known  anti-HIV  drug  Zidovudine.  Please
                          COO     P   O   Na
                                             3                   identify heterocyclic, aliphatic and organic func-
                                   -                             tional groups in it.
                                 O
                                                                                        O
               a.      Severe hypotension                                                       CH 3
               b.      Seizure                                                    H N
               c.      Electrolyte disturbances
                                                                                O       N
               d.      Severe nausea and vomiting
                                                                                    O
                                                                       H O  CH 2
               272.    Below is the structure of antiviral drug
               Famciclovir. It is a prodrug of:
                                                                               N 3
                                                                               Zidovudine
                                            N
                                N
                                                                 I.     Tetrahydrofuran
                                            N
                            NH      N                            II.    Thymidine
                               2
                     CH 3  COO  CH 2                             III.   Azido
                                   CH   CH  CH
                                          2    2
                                                                 a.     I only
                     CH  COO     CH
                       3           2
                                                                 b.     I and II only
                                 Famciclovir                     c.     II and III only
                                                                 d.     All





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