The discoveries that synthetic peptides corresponding to the N- and C-termi
nal heptad repeat (HR) regions of gp41 have potent anti-HIV activity opened
a new avenue to identification of small molecule HIV entry inhibitors targ
eted to the HIV gp41 coiled-coil regions. Based on the structural informati
on of the HIV gp41 core, three distinct approaches to develop small molecul
e anti-HIV agents have been reported. Each of these approaches has specific
advantages, which will have complementary effects on the design of new str
ategies for identification of more potent HIV entry inhibitors. It is expec
ted that novel antiviral drugs targeted to the HIV gp41 coiled-coil regions
will be developed in the near future for the chemotherapy and/or prophylax
is of HIV infection and AIDS. (C) 2000 Academic Press.