A series of analogues of prazosin, in which 1-methyl or 1-phenylpyrazo
le moieties were substituted for the furan ring, were synthesized and
studied for their alpha(1)-adrenoceptor antagonist activity. The role
of the five member heterocyclic substructures in determining the affin
ity for the alpha(1)-receptor is briefly discussed. (C) 1998 Elsevier
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