R428 (BGB324) is an inhibitor of Axl with IC50 of 14 nM. R428 was originated in Rigel Pharmaceuticals and was licensed to BerGenBio, which initiated clinical trials for the treatment of non-small cell lung cancer, metastatic melanoma and acute myeloid leukaemia.

MK-8325 is tricyclic silyl compound patented by Schering Corporation as an antiviral agent for treating hepatitis C virus infection. MK-8325 acts as a potent hepatitis C virus nonstructural protein 5A (NS5A) inhibitor with excellent replicon activity across multiple genotypes. The compound is orally absorbed from the GI tracts of rats, dogs, and cynomolgus monkeys with low to moderate bioavailability. MK-8325 showed high protein binding in all species and is highly distributed to the target organ with minimal or no brain distribution In vitro and in vivo assays showed MK-8325 to be orally bioavailable with pharmacokinetics suitable for once-daily dosing in patients and good overall ADME profiles.

GSK-256066 is a PDE4B inhibitor which was developed by GlaxoSmithKline and tested in phase II of clinical trials for the treatment of COPD, Asthma and Seasonal allergic rhinitis. According to the GSK pipeline, development of GSK-256066 was terminated. There are studies that describes the possibility of repurposing of the drug as antitrypanosomal agents, because it inhibits PDEB1 of Trypanosoma brucei.

MK-2206 is an oral selective allosteric inhibitor of Akt that targets all three isoforms of human Akt (Akt-1, Akt-2 and Akt-3). In a phase I study of solid tumors, MK-2206 demonstrated evidence of target modulation and anti-proliferative activity as a single agent and in combination with other agents. Current ongoing trials of MK-2206 include monotherapy and combination therapy in breast cancer, colorectal cancer, haematological malignancies, non-small cell lung cancer and other. Detected treatment-related adverse event are: rash, fatigue, hyperglycemia.

INCB9471 is a non-competitive, potent and selective CCR5 small-molecule antagonist patented by pharmaceutical company Incyte Corporation for treatment of human immunodeficiency virus infection. INCB9471 potently inhibited macrophage inflammatory protein-1beta-induced monocyte migration and infection of peripheral blood mononuclear cells by a panel of R5-HIV-1 strains. INCB9471 was shown to be safe and highly efficacious in reducing HIV viral load in phase I and II human clinical trials

TMC647055 is a potent and selective nonnucleoside inhibitor of NS5B binding site 1 (NNI-1) with activity against most HCV genotypes. Binding of inhibitors to NNI-1 is purported to displace the flexible λ1 loop from its thumb domain binding site, perturbing the interaction between the NS5B polymerase finger and thumb domains and thereby locking the enzyme in an open inactive conformation. Janssen R&D Ireland (formerly Tibotec Pharmaceuticals) is developing TMC 647055 as an oral once-daily treatment for chronic hepatitis C virus infections. Phase II development is underway in Belgium, Germany and the US.