4'-Ethynyl-2'-deoxyadenosine (4'-E-dA) is a nucleoside reverse transcriptase (RT) inhibitor. It is potent against drug-resistant HIV variants (EC50: 98 nM in MT-4 cells for anti-HIV-1 activity).
Grazoprevir, a second generation hepatitis C virus protease inhibitor acting at the NS3/4a protease targets, has good activity against a range of hepatitis C virus genotype variants, including some that are resistant to most currently used antiviral medic
AG-7404 is a potent protease inhibitor with anti-poliovirus activity. AG-7404 was active against all virus with EC50 values ranging from 0.080 to 0.674 μM. AG-7404 was fully active against V-073-resistant variants with EC50 values ranging from 0.218 to 0.