Hydroxypyridine tartrate, a tartaric ester that was used as a peripheral vasodilator.

Trigonelline is a pyridine derivative known to contribute indirectly to the formation of desirable flavor products, including furans, pyrazine, alkyl-pyridines, and pyrroles, during coffee roasting. The amount of trigonelline in arabica is higher than that in robusta green coffee beans, and thus it can be used as a marker compound to distinguish the coffee bean species. During the roasting process of coffee beans, trigonelline changes into N-methylpyridinium and nicotinic acid as its major products, which makes it a useful index of the degree of roasting. The importance of trigonelline in coffee is connected to nutritional aspects. It has been revealed in recent studies that the administration of trigonelline allows diabetic rats to avoid diabetes-related organ damage and live longer, which can make it a potentially strong candidate for industrial application as a pharmacological agent for the treatment of hyperglycemia, hyperlipidemia, and liver/kidney dysfunctions. In addition, the urinary concentrations of trigonelline and its thermal product N-methylpyridinium of coffee drinkers are higher than those of noncoffee drinkers, which indicates that trigonelline and N-methylpyridinium may have potential as dietary biomarkers that could be used as analytical probes to control compliance in human intervention studies on coffee. Trigonelline has been isolated from many plants: fenugreek seeds (Trigonella foenum-graecum, hence the name), garden peas, hemp seed, oats, potatoes, Stachys species, dahlia, Strophanthus species, and Dichapetalum cymosum. In a randomized cross-over trial, the critical effect of Trigonelline on glucose tolerance has been studied during a 2-hour oral glucose tolerance test (OGTT) in 15 overweight men. Results showed that glucose and insulin concentrations significantly reduced 15minutes after Trigonelline consumption compared with placebo.

Ticabesone is a thioetianic acid derivative patented by Syntex, Inc. as anti-inflammatory agent. The topical antiinflammatory activity of Ticabesone was assessed in humans by vasoconstriction assay.

8-Hydroxy-7-iodo-5-quinolinesulfonic acid (Ferron) showed fungistatic effect for Candida and for M. canis and T. mentagrophytes. Resotren is a chemical combination of chloroquine and iodohydroxyquinoline and, taken by mouth, is poorly absorbed and reaches the lower bowel in considerable concentration. Resotren is effective in both intestinal and extra-intestinal amoebiasis. Al-Ferron timed spectrophotometry assay is a basic method in the study on the formation of polynuclear hydroxyl aluminum species and their transformation laws in aqueous systems.

Antimony sodium thioglycollate is an anthelmintic agent. It is a schistosomicide drug.

Tiapamil (also known as Ro 11-1781) is a dithiane derivative patented by Hoffmann-La Roche, F., und Co., A.-G. as calcium-channel antagonist useful for myocardial infarction treatment. Tiapamil, like verapamil, inhibited in a concentration-dependent manner Ca2+-induced contractions in isolated, K+-depolarized preparations of rat renal artery, dog coronary artery and rabbit main pulmonary artery. The inhibitory effects of Tiapamil can be overcome by raising the Ca2+ concentration of the bath fluid. In the rabbit main pulmonary artery, Tiapamil reduces 45Ca influx into the K+-depolarized vascular smooth muscle cells. Tiapamil inhibits the slow potentials in partially depolarized guinea-pig papillary muscles. Tiapamil decreases contractile force in isolated guinea-pig atria and papillary muscles, as well as in isolated cat hearts. Tiapamil also reduces heart rate and increases coronary flow in these preparations. Tiapamil doubled coronary artery blood flow in the coronary sinus blood without producing major changes in blood pressure and heart rate in anesthetized dogs. Tiapamil did not affect contractions of isolated guinea-pig ileum, rat stomach strips or rat vas deferens in response to various stimulants. Tiapamil have no major effects on renal water and electrolyte excretion, on autonomic nerves and receptors, on pain perception and on the central nervous system. Acute, subacute, and chronic toxicity studies demonstrate low toxicity for Tiapamil with no tendency for accumulation. In clinical trials, Tiapamil effectively lowers systolic and diastolic blood pressure, but have no effects on heart rate

Tetradecylthioacetic acid (TTA) is a hypolipidemic antioxidant with immunomodulating properties involving activation of peroxisome proliferator-activated receptors (PPARs). TTA exerts both hypolipidemic and anti-inflammatory effects in psoriasis patients - TTA can be of therapeutic benefit for a subgroup of psoriatic patients. TTA may improve myocardial function in heart failure, potentially involving its ability to decrease the availability of free fatty acids in plasma and increase the myocardial proportion of n-3 polyunsaturated fatty acids. TTA attenuates dyslipidemia in patients with type 2 diabetes mellitus. These effects may occur through mechanisms involving PPAR-alpha and PPAR-delta activation, resulting in increased mitochondrial fatty acid oxidation.

1-aminocyclopropanecarboxylic acid (ACPC) is a non-proteinogenic alpha-amino acid consisting of cyclopropane having amino and carboxy substituents both at the 1-position. It has a role as a plant metabolite and a member of ethylene releasers. ACPC is produced endogenously in the tomato and other higher plants as a product of the action of 1-aminocyclopropane-1-carboxylic acid synthase in the biosynthesis of ethylene. It is a monocarboxylic acid and a non-proteinogenic alpha-amino acid. It derives from a cyclopropanecarboxylic acid. ACPC is a partial agonist at the strychnine-insensitive glycine recognition site on the N-methyl-D-aspartate (NMDA) receptor complex in the mammalian central nervous system with preclinical activity in animal models of neuroprotection and psychiatric illnesses. Half-maximal activation by ACPC as a glycine-site agonist was 0.7 to 0.9 microM. Half-maximal inhibition by ACPC was dependent on NMDA concentration. Peak responses to a >100 microM ACPC pulse in the presence of 1 microM glutamate were similar to those of glycine but decayed to a steady-state amplitude below that of glycine. The removal of ACPC initially caused an increase in inward current followed by a subsequent decrease to baseline levels. This suggests that relief of low-affinity antagonism occurs before high-affinity agonist dissociation. ACPC is shown to block convulsions and death produced by NMDA exposure, significantly reducing seizure induction and cell death of NMDA-treated hippocampal neurons.