1-(2-DEOXY-2-FLUORO-β-D-ARABINOFURANOSYL)URACIL (FAU) is a thymidine analog. In several cancer cell lines, FAU was phosphorylated intracellularly to its monophosphate, 1-(2-deoxy-2-fluoro--Darabinofuranosyl) uracil monophosphate (FAUMP), by thymidine kinase and methylated in the 5-position by thymidylate synthase to form the product, 1-(2-deoxy-2-fluoro- -D-arabinofuranosyl) 5-methyluracil monophosphate (FMAUMP). FAU strongly inhibits the growth of tumor cells with high thymidylate synthase activity. FAU had been in phase I clinical trial for the treatment of advanced solid tumors.

Arno Therapeutics is developing AR-12, an orally available, targeted therapy for cancer and infectious diseases. AR-12 is a potentially first-in-class, orally available, targeted anti-cancer agent that has been shown in preclinical studies to inhibit phosphoinositide-dependent protein kinase-1, or PDK-1, a protein in the PI3K/Akt pathway that is involved in the growth and proliferation of cells, including cancer cells. Although FDA-approved drugs that target the Akt pathway have shown efficacy in treating cancer, some tumors either do not respond to these drugs or eventually become resistant to therapy. Scientists hypothesize that a combination of drugs that inhibit different targets in this pathway could provide synergistic or additive benefits to increase efficacy and potentially overcome drug resistance. For this reason, there has been particular interest within the biopharmaceutical industry in developing inhibitors of PI3K, PDK-1, and Akt. AR-12 was licensed to Arno in January 2008 by The Ohio State University Research Foundation for commercial development by Arno as a potential treatment for solid tumors and hematological malignancies. In preclinical studies, AR-12 has shown efficacy in a wide range of tumor types, including breast, lung, prostate, pancreatic, brain and hematological cancers, as both a single-agent as well as in combination with leading oncology therapeutics. Also AR-12 represents a promising class of small molecules with broad-spectrum antifungal activity. AR-12 inhibits fungal acetyl coenzyme A (acetyl-CoA) synthetase in vitro and is fungicidal at concentrations similar to those achieved in human plasma. AR-12 has a broad spectrum of activity, including activity against yeasts (e.g., Candida albicans, non-albicans Candida spp., Cryptococcus neoformans), molds (e.g., Fusarium, Mucor), and dimorphic fungi (Blastomyces, Histoplasma, and Coccidioides) with MICs of 2 to 4 ug/ml. AR-12 is also active against azole- and echinocandin-resistant Candida isolates, and subinhibitory AR-12 concentrations increase the susceptibility of fluconazole- and echinocandin-resistant Candida isolates. Also AR-12 acts as a broad-specificity anti-viral drug in vitro and in vivo. AR-12 (OSU-03012) interacts with multiple chaperone proteins of the HSP90 family and the HSP70 family resulting in a broad spectrum of chaperone inactivation. This overall loss of chaperone functionality results in cells being more readily capable of undergoing autophagic processes and in cells that have a reduced competency for virus replication.

Tilivapram is a heterocyclylbenzamide derivative patented by Rhone-Poulenc Rorer Ltd as phosphodiesterase IV inhibitor.

Pracinostat is a pan-histone deacetylase inhibitor being tested in phase II of clinical trials for the treatment of sarcoma, prostate cancer, acute myeloid leukemia, myelofibrosis, myelodysplastic syndrome. The drug was shown to be active in vitro on HCT116 and HL-60 cells.

MK-3207 represents the third CGRP receptor antagonist to display clinical efficacy in migraine trials. It is a potent CGRP receptor antagonist with IC50 and Ki of 0.12 nM and 0.022 nM, highly selective versus human AM1, AM2, CTR, and AMY3. MK-3207 had been in phase II clinical trials by Merck Sharp & Dohme for the treatment of migraine. But the company had discontinued the research due to asymptomatic liver test abnormalities in 2010.

AGE-RELATED MACULAR DEGENERATION (AMD), PROLIFERATIVE DIABETIC RETINOPATHY (PDR) AND DIABETIC MACULAR EDEMA (DME) are collectively characterized by VEGF mediated retinal leakage, angiogenesis, and an underlying inflammatory process. TargeGen's TG100801 is designed to inhibit a select group of kinases involved in those three processes. Currently approved drug based therapy for macular degeneration requires repeated injection into the eye. TG100801 is the first topically applied, VEGFR)/Src kinase inhibitor to advance into the clinic for the treatment of Age-related macular degeneration, diabetic retinopathy. The formation of new blood vessels (angiogenesis), blood vessel leakage, and inflammation contribute to the progression of the eye disease, which is the leading cause of irreversible, severe loss of vision in people 55 years of age and older in the developed world. In cell based assays, following topical instillation, TG100572, the active drug produced by conversion of TG100801 as it penetrates the eye, was shown to induce apoptosis in proliferating endothelial cells responsible for neovasculariztion and to inhibit inflammatory-mediated processes as measured by endotoxin-induced nitric oxide release in vitro.

Bevirimat (3-O-(3',3'-dimethylsuccinyl) betulinic acid or MPC-4326 or PA-457) potently inhibits replication of both WT and drug-resistant HIV-1 isolates and demonstrate that the compound acts by disrupting a late step in Gag processing involving conversion of the capsid precursor (p25) to mature capsid protein (p24). Bevirimat inhibits replication of both wild-type and drug-resistant HIV-1 isolates in vitro, achieving similar 50% inhibitory concentration values with both categories. Serial drug passage studies have identified six single amino acid substitutions that independently confer bevirimat resistance. These resistance mutations occur at or near the CA-SP1 cleavage site, which is not a known target for resistance to other antiretroviral drugs. Bevirimat has been in phase 2 trial for the treatment of HIV infections. Bevirimat has demonstrated a consistent pharmacokinetic profile in healthy volunteers and HIV-infected patients. The demonstration of an antiviral effect following a single oral dose of bevirimat validates maturation inhibition as a potential target for antiretroviral therapeutics in humans.

Sulisatin (also known as DAN-603) is an indolinone derivative patented by Andreu, Dr., S. A. as a laxative. In preclinical models, Sulisatin increases selectively the colon motility without modifying the speed of gastric, intestinal (small intestine) and caecal emptying in rats. Sulisatin is unable to inhibit water absorption in rat colon while small amounts of Sulisatin may inhibit it significantly.

Strinoline is a quinoline derivative patented by Morton-Norwich Products, Inc. as antimycotic agent