Described herein are small-molecule mimics of CD4, which both enter the Phe43 cavity and target Asp368 of gp120, the HIV-1 envelope protein. Also described herein are methods of using these compounds to inhibit the transmission or progression of HIV infection. These compounds exhibit antiviral potency greater than that of a known antiviral, NBD-556, with 100% breadth against clade B and C viruses. Importantly, the compounds do not activate HIV infection of CD4-negative, CCR5-positive cells, in contrast to NBD-556.