Seprilose is a carbohydrate compound that inhibits prostaglandin E2 synthesis. Seprilose was undergoing phase II trials with Boston Life Sciences in the USA for the treatment of Rheumatic disorders, but this development was discontinued.

Pimonidazole (developed as RO 038799) is a derivative of 2-nitroimidazole, which forms adducts (binds to thiol-containing proteins) only at low oxygen tension. Pimonidazole is a novel nontoxic hypoxia marker for the complementary study of tumor hypoxia and cell proliferation in different types of cancer. The drawback of pimonidazole as a hypoxic marker is that it detects only severe hypoxia.

p-Toluene sulfonamide was used to prepare the precursor required for synthesis of ethyl 6-phenyl-1-tosyl-1,2,5,6-tetrahydropyridine-3-carboxylate. It acts as a derivative of ammonia activated to alkylation by alkyl halides is exemplified by the synthesis of N-tosyl-2,3-dihydroisoindole from o-xylylene dibromide. It is a precursor of N-tosyl imines. Hybrid compounds of tacrine and p-toluenesulfonamide are effective inhibitors of acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) with the preferential inhibition of BChE. p-Toluenesulfonamide has been employed as nucleophile during tetrabutylammonium fluoride (TBAF) catalyzed vinyl aziridine opening reaction and as a reagent during selective aziridination of olefins catalyzed by dirhodium (II) caprolactamate.

Tifenazoxide is a thiadiazine derivative patented by Novo Nordisk A/S as the opener of the KATP-regulated potassium channels useful in the treatment of the endocrine system diseases. Tifenazoxide is a selective opener of the beta-cell type (SUR1 / Kir6.2) KATP channel that characterized as competitive inhibitors of glibenclamide binding to membranes of HEK293 cells expressing human SUR1/Kir6.2and as potent inhibitors of insulin release in isolated rat islets. In clinical trials, Tifenazoxide administration leads to a decrease in insulin concentrations 1 h post-dose. This was accompanied by an increase in glucose and growth hormone concentrations (NS), but not of glucagon. During the OGTT a dose-dependent reduction in the 2 h glucose value was observed.

GW406381 is an investigational, highly selective cyclooxygenase-2 (COX-2) inhibitor for inflammatory pain treatment. It showed effectiveness in animal models of central sensitization such as chronic constriction injury and capsaicin-induced hyperalgesia. It's effect was also evaluated in several clinical trials in patients with peripheral nerve injury (Phase I ), rheumatoid arthritis (Phase III), the signs and symptoms of osteoarthritis of the knee to control of pain and improvement in function (Phase III), and in treating the signs and symptoms of dental pain following third molar tooth extraction (Phase III). Possessing favourable pharmacokinetic profiles and analgesic activity in vivo, GW406381 have also demonstrated relatively high brain penetration in the rat compared with the clinically available compounds, which may ultimately prove beneficial in the treatment of pain.

Furazolium, an antibacterial agent, was studied for the management of skin infections. However, information about the current use of this drug is not available.

Ingliforib, aka CP-368296, is a glycogen phosphorylase inhibitor with antihyperglycemic and cardioprotective properties. It has been implicated for use in the treatment of diabetes and for myocardial ischemic protection. Ingliforib was in phase II clinical trials for diabetes, but these efforts have been discontinued.

Cevipabulin is a synthetic, water-soluble tubulin-binding agent with potential antineoplastic activity. Cevipabulin appears to bind at the vinca-binding site on tubulin but seems to act more similar to taxane-site binding agents in that it enhances tubulin polymerization and does not induce tubulin depolymerization. The disruption in microtubule dynamics may eventually inhibit cell division and reduce cellular growth.