TVP1022 mesylate is the S-isomer of rasagiline, which is an anti-Parkinson drug, appears to have the same neuroprotective activity as the R-isomer, but is 1000-fold less active as an MAO-B inhibitor.
HZ-166 (HZ166) is a GABAA receptor subtype-selective benzodiazepine site ligand with preferential activity at α2- and α3-GABA(A) receptors; displays a statistically significant higher affinity for receptors not containing the α1 subunit with a rank order of α5 (Ki=140nM) > α2 (Ki=269 nM) > α1 (Ki=382 nM); The Ki value of HZ166 for the α3β3γ2 combination (185± 47 nM) was statistically significantly lower than the Ki value observed for α1β3γ2 but not different from those of α2β3γ2 and α5β3γ2; HZ-166 is antihyperalgesic in mouse models of inflammatory and neuropathic pain.
TX-1123 is a potent protein tyrosine kinase (PTK) inhibitor for Src, eEF2-K, and PKA, and EGFR-K/PKC. TX-1123 is a cyclo-oxygenase (COX) inhibitor with IC50 values of 1.16 μM and 15.7 μM for COX2 and COX1, respectively. TX-1123 has low mitochondrial toxicity. TX-1123 can be used in research of cancer[1][2].
(±)-Amiflamine (FLA 336) is a potent monoamine oxidase-A (MAO-A) inhibitor with a pIC50 of 5.57[1].
Pizotifen is a potent 5-HT2 receptor antagonist, with a high affinity for 5-HT1C binding site.
Bromperidol hydrochloride (R-11333 hydrochloride) possesses antipsychotic activity, with a high affinity for central dopamine receptors D2. Bromperidol hydrochloride can kill mycobacteria in a synergistic manner with Spectinomycin[1][2].
Coluracetam(MKC-231) is a new choline uptake enhancer.IC50 value:Target:in vitro: MKC-231 (10(-10)-10(-6) moll) significantly increased high affinity choline uptake (HACU) when it was incubated with the hippocampal synaptosomes of ethylcholine mustard aziridinium ion (AF64A) treated rats, but not of normal rats. MKC-231 did not affect the AChE activity, [3H]- quinuclidinyl benzilate binding, and [3H]-pirenzepine binding [1].in vivo: Oral administration of MKC-231 (1-10 mg/kg) significantly improved the learning deficits in the Morris' water maze of AF64A-treated rats, but it did not produce any significant side effects, like tremor, salivation or hypothermia, which were observed in rats treated with high doses of tacrine [1]. In acute behavioral experiments, MKC-231 and THA had no significant effect on AF64A-induced memory deficits at any doses tested (0.3, 1.0 and 3.0 mg/kg), whereas Dup 996, at a dose of 1.0 mg/kg, significantly improved memory deficits. In chronic experiments, MKC-231 improved memory deficit at all doses tested (0.3, 1.0, or 3.0 mg/kg p.o., once daily for 11 days) and Dup 996 did so only at a dose of 3.0 mg/kg, whereas THA did not improve memory deficit at any doses tested [2].
Benzotropine is a centrally-acting, antimuscarinic agent used as an adjunct in the treatment of Parkinson's disease.Target: mAChRBenzotropine is a centrally-acting, antimuscarinic agent used as an adjunct in the treatment of Parkinson's disease. It may also be used to treat extrapyramidal reactions, such as dystonia and Parkinsonism, caused by antipsychotics. Symptoms of Parkinson's disease and extrapyramidal reactions arise from decreases in dopaminergic activity which creates an imbalance between dopaminergic and cholinergic activity. Anticholinergic therapy is thought to aid in restoring this balance leading to relief of symptoms. In addition to its anticholinergic effects, benztropine also inhibits the reuptake of dopamine at nerve terminals via the dopamine transporter. Benzotropine also produces antagonistic effects at the histamine H1 receptor [1, 2].Benztropine (BZT) and its analogues inhibit dopamine uptake and bind with moderate to high affinity to the dopamine transporter (DAT). BZT analogues also exhibit varied binding affinities for muscarinic M(1) and histamine H(1) receptors. The BZT analogues showed a wide range of histamine H(1) receptor (K(i)=16-37,600 nM) and DAT (K(i)=8.5-6370 nM) binding affinities [3].
SCH 23390 hydrochloride is a potent dopamine receptor D1 antagonist with Ki values of 0.2 and 0.3 nM for the D1 and D5.
Indole-2-carboxylic acid is a strong inhibitor of lipid peroxidation. Indole-2-carboxylic acid (I2CA) specifically and competitively inhibits the potentiation by glycine of NMDA-gated current[1][2].
Ginsenoside Rg2 is one of the major active components of ginseng. Ginsenoside Rg2 acts as a NF-κB inhibitor. Ginsenoside Rg2 also reduces Aβ1-42 accumulation.
Substance P (alligator), a Substance P (Substance P (HY-P0201)) extracted from alligator, is a neuropeptide. The primary structure of Substance P (alligator) is: Arg-Pro-Arg-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2[1].
SB 206553 is a potent and selective 5-HT2B/5-HT2C receptor antagonist with pA2 of 8.89 for rat 5-HT2B, pKi of 7.92 for human 5-HT2C, displays >80-fold selectivity over other 5-HT receptor subtypes; exhibits anxiolytic-like properties both in vitro and in vivo. Anxiety Discontinued
Trifluoperazine Dihydrochloride is a potent dopamine D2 receptor inhibitor used as an antipsychotic and an antiemetic.Target: Dopamine D2 ReceptorTrifluoperazine Dihydrochloride is a potent dopamine D2 receptor inhibitor used as an antipsychotic and an antiemetic. Trifluoperazine inhibited in a dose-dependent manner the stimulation of glycogenolysis, gluconeogenesis, and ureogenesis due to alpha 1-adrenergic stimulation in rat hepatocytes. Trifluoperazine is much more potent at alpha 1- than at alpha 2-adrenergic receptors [1]. Trifluoperazine was not clearly different in terms of 'no substantial improvement' (n=1016, 27 RCTs, RR 1.06 CI 0.98 to 1.14) or leaving the study early (n=930, 22 RCTs, RR 1.15 CI 0.83 to 1.58). Almost identical numbers of people reported at least one adverse event (60%) in each group (n=585, 14 RCTs, RR 0.99 CI 0.87 to 1.13), although trifluoperazine was more likely to cause extrapyramidal adverse effects overall when compared to low potency antipsychotics such as chlorpromazine (n=130, 3 RCTs, RR 1.66 CI 1.03 to 2.67, NNH 6 CI 3 to 121). One small study (n=38) found no clear differences between trifluoperazine and the atypical drug, sulpiride [2].
Benzethonium chloride inhibit human recombinant α7 and α4β2 neuronal nicotinic acetylcholine receptors in Xenopus oocytes.
LY2811376 is the first orally available non-peptidic β-secretase (BACE1) inhibitor with IC50 of 239 nM-249 nM, that acts to decrease Aβ secretion with EC50 of 300 nM, and demonstrates to have 10-fold selectivity towards BACE1 over BACE2, and more than 50-fold inhibition over other aspartic proteases including cathepsin D, pepsin, or renin.
Alosetron is a Serotonin 5HT3-receptor antagonist that is used in treatment of irritable bowel syndrome.IC50 Value: N/ATarget: 5-HT3 ReceptorAlosetron has an antagonist action on the 5-HT3 receptors of the enteric nervous system of the gastrointestinal tract. While being a 5-HT3 antagonist like ondansetron, it is not classified or approved as an antiemetic. Since stimulation of 5-HT3 receptors is positively correlated with gastrointestinal motility, alosetron's 5-HT3 antagonism slows the movement of fecal matter through the large intestine, increasing the extent to which water is absorbed, and decreasing the moisture and volume of the remaining waste products. From Wikipedia.
Hexamethonium is a non-depolarising ganglionic blocker, a nicotinic nACh (NN) receptor antagonist.Target: nAChRHexamethonium is a non-depolarising ganglionic blocker, a nicotinic nACh receptor antagonist that acts in autonomic ganglia by binding mostly in or on the NN receptor, and not the acetylcholine binding site itself. It does not have any effect on the muscarinic acetylcholine receptors (mAChR) located on target organs of the parasympathetic nervous system but acts as antagonist at the nicotinic acetylcholine receptors located in sympathetic and parasympathetic ganglia (NN). Hexamethonium bromide is a nicotinic acetyl choline receptor antagonist. Induces apoptosis and inhibits the stimulatory effect of nicotine on endothelial cell DNA synthesis and proliferation. Hexamethonium bromide hydrate is an inhibitor of AChR α3 [1-3].
Isatin (Indoline-2,3-dione) is a potent inhibitor of monoamine oxidase (MAO) with an IC50 of 3 μM. Also binds to central benzodiazepine receptors (IC50 against clonazepam, 123 μM)[1]. Also acts as an antagonist of both atrial natriuretic peptide stimulated and nitric oxide-stimulated guanylate cyclase activity[2]. Shows effect on the serotonergic system[3].
Rosmarinic acid (RA) is a widespread phenolic ester compound in the plants. Rosmarinic acid inhibits MAO-A, MAO-B and COMT enzymes with IC50s of 50.1, 184.6 and 26.7 μM, respectively.
Paeonol is an active extraction from the root of Paeonia suffruticosa, Paeonol inhibits MAO-A and MAO-B with IC50 of 54.6 μM and 42.5 μM, respectively.
Tacrine is a potent acetylcholinesterse (AChE) inhibitor (IC50=109 nM), also acting as a CYP1A2 substrate drug. Tacrine exhibits certain hepatotoxicity in some individuals. Tacrine can be used for researching Alzheimer's disease (AD)[1][2][3].
TG6-10-1 is an EP2 antagonist, shows low-nanomolar antagonist activity against only EP2, >300-fold selectivity over human EP3, EP4, and IP receptors, 100-fold selectivity over EP1 receptors. IC50 value: 7.5 μMTarget: serotonin 5-HT2B receptorin vitro: TG6-10-1, an analog of TG4-155 (a prostaglandin receptor EP2 antagonist, with a relatively short plasma half-life (0.6 h) and low brain:plasma ratio (0.3) after systemic administration in mice), which has a superior pharmacokinetic profile making it suitable for more extensive testing. TG6-10-1 had negligible effect on a panel of 40 enzymes, ion channels, receptors, and neurotransmitter transporters (IC50s > 10 μM), except that TG6-10-1 weakly inhibited the serotonin 5-hydroxytryptamine 2B (5-HT2B) receptor with IC50 = 7.5 μM. At a high concentration (10 μM), TG6-10-1 had little or no effect on the enzymatic activity of COX-1 (7% inhibition) and COX-2 (14% inhibition), and inhibited the leukotriene B4 (LTB4) receptor BLT1 by 1% .EP2 receptor activation by PGE2 stimulates adenylate cyclase to elevate cytoplasmic cAMP level. TG6-10-1 has a competitive mechanism of antagonism of the EP2 receptor with an equilibrium dissociation constant for the antagonist-receptor complex (KB) of 17.8 nM.in vivo: TG6-10-1 displayed a plasma half-life of 1.6 h and a brain:plasma ratio of 1.6 after systemic administration (5 mg/kg, i.p.) in mice. A significant increase in survival was observed in post-SE mice that received TG6-10-1 compared with those in the vehicle group. Administration of TG6-10-1 improved 1-wk survival from 60 to 90% after SE.
VU 0255035 is a highly selective, competitive and brain penetrant muscarinic M1 receptor antagonist with an IC50 of 130 nM. VU 0255035 reduces pilocarpine-induced seizures in mice. VU0255035 is used to examine the role of the M1 receptor in diverse situations[1].
Milnacipran (1S-cis) hydrochloride is a serotonin-norepinephrine reuptake inhibitor (SNRI), used in the clinical treatment of fibromyalgia.
ADL5859 is a δ-opioid receptor agonist with Ki of 0.8 nM, selectivity against opioid receptor κ, μ, and weak inhibitory activity at the hERG channel. IC50 value: 0.8 nM(Ki)Target: δ-opioid receptorADL-5859 (ADL5859) is an δ-opioid receptor agonist (Ki=0.84 nM, EC50=20 nM). ADL-5859 (ADL5859) is an agonist agent that selectively stimulates the δ-opioid receptor with potential application in a wide range of inflammatory, neuropathic and acute pain conditions. In addition, Delta agonists are thought to modulate other biological processes that may manifest themselves in disease states or conditions such as overactive bladder and depression.ADL-5859 (ADL5859) is useful for inflammatory, neuropathic and acute pain conditions.
Diphemanil methylsulfate is a quaternary ammonium anticholinergic. It binds muscarinic acetycholine receptors and thereby decreases secretory excretion of stomach acids as well as saliva and sweat.IC50 value: Target: mAChRDiphemanil Methylsulfate exerts its action by primarily binding the muscarinic M3 receptor. M3 receptors are located in the smooth muscles of the blood vessels, as well as in the lungs. This means they cause vasodilation and bronchoconstriction. They are also in the smooth muscles of the gastrointestinal tract (GIT), which help in increasing intestinal motility and dilating sphincters. The M3 receptors are also located in many glands which help to stimulate secretion in salivary glands and other glands of the body.
Nialamide is a non-selective, irreversible monoamine oxidase inhibitor (MAOI) of the hydrazine class that was used as an antidepressant.
Mecamylamine hydrochloride is an orally active, nonselective, noncompetitive nAChR antagonist that can treat various neuropsychiatric disorders. Mecamylamine hydrochloride is originally used as a ganglionic blocker in treating hypertension. Mecamylamine hydrochloride can easily crosses the blood-brain barrier[1][2].
Thioridazine is an antipsychotic drug, used in the treatment of schizophrenia and psychosis, shows D4 selectivity or serotonin antagonism.