Nk. Terrett et al., SILDENAFIL (VIAGRA(TM)), A POTENT AND SELECTIVE INHIBITOR OF TYPE-5 CGMP PHOSPHODIESTERASE WITH UTILITY FOR THE TREATMENT OF MALE ERECTILE DYSFUNCTION, Bioorganic & medicinal chemistry letters, 6(15), 1996, pp. 1819-1824
-(2'-Alkoxyphenyl)pyrazolo[4,3-d]pyrimidin-7-ones, and in particular o
ur preferred compound, sildenafil (VIAGRA(TM)), discovered through a r
ational drug design programme, are potent and selective inhibitors of
the type 5 cGMP phosphodiesterase from both rabbit platelets and human
corpus cavernosum. Sildenafil is currently in the clinic for the oral
treatment of male erectile dysfunction. Copyright (C) 1996 Elsevier S
cience Ltd