U93631 is a GABAA receptor ligand of novel chemical structure with IC50 of 100 nM,and has been shown to induce a rapid, time-dependent decay of GABA-induced whole-cell Cl-currents in recombinant GABAA receptors. target: GABAA receptorIC 50: GABAA receptor[1]In vitro: In the presence of U93631 at 5 UM, the peak amplitude decreased as a function of GABA concentration, with the half-maximal inhibitory concentration being approximately 100 nM, which is close to the Kd for the high affinity GABA site(85 nM). It appears that the drug interacts with GABA-bound receptors (at least monoliganded) and accelerates receptor desensitization,rather than acting as an open channel blocker. [1]
7-Desmethyl-3-hydroxyagomelatine (3-Hydroxy-7-desmethyl agomelatine), a metabolite of Agomelatine, has less activity than Agomelatine[1]. Agomelatine is a melatonergic (MT1 and MT2) agonist and serotonergic (5HT2C) antagonist[1][2].
Desformylflustrabromine hydrochloride is a selective agonist of α4β2 neuronal nicotinic acetylcholine receptor (nAChR) with a pEC50 of 6.48.
Peimisine (Ebeiensine) hydrochloride non-competitively antagonizes tracheal smooth muscle muscarinic M receptor and inhibits smooth muscle contraction caused by Ach. Peimisine hydrochloride excits β-receptor, restrains the release of internal calcium, and promotes to releaseing NO in order to relax tracheal smooth muscle and relieve asthma[1].
Cisapride(R 51619) is a nonselective 5-HT4 receptor agonist, it is also a potent hERG potassium channel inhibitor.IC50 Value: 0.14 μM(EC50 for 5-HT4 receptor) [1]; 9.8 μM (Kv4.3) [2]Target: 5-HT4 Receptorin vitro: Cisapride showed higher inhibitory effects on a hERG current, as indicated by its IC50 of 9.4 × 10-9 M [1]. cisapride on cloned Kv4.3 channels stably expressed in Chinese hamster ovary cells were investigated using the whole-cell patch-clamp technique. Cisapride inhibited Kv4.3 in a concentration-dependent manner with IC50 values of 9.8 uM [2].in vivo: Cisapride (1 mg/kg i.v.), when administered 10 min after the start of GR113808 infusion, did not stimulate either antral or colonic motor activity under treatment with GR113808. The enhanced antral or colonic motor activity induced by these drugs was antagonized by treatment with GR113808 in dogs [3]. cisapride could not bring about more colitis damages through 5HT(4) receptors. Based on the present study further researches are required for investigating the exact roles of 5HT(4) receptors in the pathogenesis of ulcerative colitis[4].Toxicity: cardiac arrythmies
Volinanserin is a potent and selective antagonist of 5-HT2 receptor, with a Ki of 0.36 nM, and shows 300-fold selectivity for 5-HT2 receptor over 5-HT1c, alpha-1 and DA D2 receptors. Volinanserin has antipsychotic activity.
GABAA receptor agent 2 TFA is a potent and high-affinity GABAA receptor antagonist with an IC50 of 24 nM (human α1β2γ2 GABAA-expressing tsA201 cells) and a Ki of 28 nM (rat GABAA receptors). GABAA receptor agent 2 TFA is inactive against four human GABA transporters (hGAT-1, hBGT-1, hGAT-2, and hGAT-3)[1].
ACV1 (Vc1.1), an α-Conotoxin, is a selective α9α10 nAChR antagonist with an IC50 of 19 nM. ACV1 is ~100-fold less potent on human α9α10 vs. rat nAChRs[1].
Clovoxamine (DU23811) (Compound 35) has binding affinity for serotonin transporter (SERT) (Ki: 61 nM). Clovoxamine is a 5-HT and norepinephrine reuptake (NE) re-uptake inhibitor. Clovoxamine is an antidepressant[1][2][3].
CX 717 is a positive allosteric modulator of AMPA receptor. Antidepressant-like effect. CX 717 can be used for the research of adult attention deficit hyperactivity disorder (ADHD)[1][2].
LY125180 is a serotonin uptake inhibitor. LY125180 competitively inhibits the uptake of serotonin and norepinephrine by cortical synaptosomes and of dopamine by striatal synaptosomes, with Ki values of 0.06 μM, 2.2 μM and 2.5 μM respectively[1].
Alosetron D3 (GR 68755 D3) is a deuterium labeled Alosetron. Alosetron is a serotonin 5HT3-receptor antagonist[1].
Isamoltane hemifumarate is a selective antagonist of 5-HT1B receptor, with an IC50 of 39 nM for inhibits the binding of [125I]ICYP to 5-HT1B recognition sites in rat brain membranes. Isamoltane hemifumarate is also a β-adrenoceptor ligand, with an IC50 of 8.4 nM. Isamoltane hemifumarate shows anxiolytic activity[1].
Vortioxetine is a inhibitor of 5-HT1A, 5-HT1B, 5-HT3A, 5-HT7 receptor and SERT, with Ki values of 15 nM, 33 nM, 3.7 nM, 19 nM and 1.6 nM, respectively.
Aripiprazole D8 is the deuterium labeled Aripiprazole, which is a human 5-HT1A receptor partial agonist with a Ki of 4.2 nM.
6-Methoxy-2-naphthoic acid is an NMDA receptor modulator extracted from patent WO 2012019106 A2.
LY320135 is a potent and selective antagonist of CB1 receptor, with a Ki of 141 nM. LY320135 also binds to 5-HT2 and muscarinic receptors with Kis of 6.4 μM and 2.1 μM, respectively. LY320135 exhibits neuroprotective effect[1][2].
Solriamfetol (JZP-110) is a selective dopamine and norepinephrine reuptake inhibitor with robust wake-promoting effects. Solriamfetol binds to dopamine and norepinephrine transporters, so it can inhibit reuptake of dopamine and norepinephrine. Solriamfetol treatment significantly improves the ability to stay awake and subjective symptoms of excessive sleepiness in adults with narcolepsy.
Fluoxetine is a selective serotonin reuptake inhibitor (SSRI) class used for antidepressant research.
AWD 131-138(Imepitoin) is a new low-affinity partial benzodiazepine receptor agonist with potent anticonvulsant and anxiolytic properties in rodent models.IC50 Value: Target: GABA receptorin vitro: AWD 131-138 dose-dependently stimulated GABA currents(Recombinant gamma-aminobutyric acid A (GABA(A)) receptors of the subunit compositions alpha1beta2gamma2, alpha1beta3gamma2, alpha2beta2gamma2, alpha3beta2gamma2 and alpha5beta2gamma2). At 10 microM AWD 131-138, this allosteric stimulation amounted in average to about 12-21% of the maximal stimulation achieved using diazepam. The threshold of stimulation was about 0.3-1.0 microM [1]. in vivo: AWD 131-138 did not produce midazolam-like responding or alter response rates at cumulative doses up to 18.0 mg/kg i.m. (plasma levels over 2100 ng/ml). When AWD 131-138 (10-100 microg/kg/injection) was studied by substitution, responding declined to vehicle substitution levels within three sessions. At the dose of 100 microg/kg i.v. AWD 131-138, sufficient drug was self-administered during the first session (about 3.5 mg/kg) to produce plasma levels above 1000 ng/ml, yet responding over the next two sessions dropped to vehicle levels [2]. Prolonged oral administration with twice-daily dosing of ELB 138 with either 5 or 40 mg/kg over a 5-week period was not associated with loss of anticonvulsant efficacy in the PTZ dog model [3].
SA57 is a potent, selective FAAH inhibitor with IC50s of 3.2 nM and 1.9 nM for mouse and human FAAH. SA57 also inhibits the 2-arachidonoylglycerol hydrolases MAGL (IC50s of 410 nM and 1.4 μM for mouse and human MAGL) and mouse α/β-hydrolase domain-containing protein 6 (mABHD6; IC50 of 850 nM), but not other brain serine hydrolases[1][2].
UBP301 is a potent and selective antagonist of kainate receptor with IC50 and KD of 164 μM and 5.94 μM, respectively. UBP301 has ∼30-fold selectivity of kainate receptor over AMPA receptor. UBP301 is the derivative of willardiine[1].
Etifoxine-d5 is the deuterium labeled Etifoxine. Etifoxine, a non-benzodiazepine GABAergic compound, is a positive allosteric modulator of α1β2γ2 and α1β3γ2 subunit-containing GABAA receptors. Etifoxine reveals anxiolytic and anticonvulsant properties in rodents[1][2][3].
TC-2559 idifumarate is a CNS-selective, orally active α4β2 subtype of nicotinic acetylcholine receptor (nAChR) partial agonist (EC50=0.18 μM). TC-2559 difumarate shows selectivity for α4β2 over α2β4, α4β4 and α3β4 receptors, with EC50s in the range of 10-30 µM. Antinociceptive effect[1][2].
Dynorphin (2-17), amide (porcine) is a dynorphin derivative with some analgesic effects. Dynorphin is a class of opioid peptides produced by the precursor protein dynorphinogen and is involved in pain, addiction and mood regulation[1].
G-Protein antagonist peptide is the substance P-related peptide that inhibits binding of G proteins to their receptors. G-Protein antagonist peptide competitively and reversibly inhibits M2 muscarinic receptor activation of Gi or Go and inhibits Gs activation by β-adrenoceptors.
GTS-21 dihydrochloride is a selective α7 nicotinic acetylcholine receptor agonist, has recently been established as a promising treatment for inflammation. Target: nAChRin vitro: GTS-21 is one of the most potent α7nAChR agonists, has been reported to attenuate pro-inflammatory cytokine production, improve outcomes in sepsis models, pancreatitis, and ischemia-reperfusion injury, and inhibit the production of endotoxin-induced TNF in lung tissue. In addition, recent studies have demonstrated that GTS-21 inhibits the activities of endothelial cells and monocyte macrophages, as well as the secretion of pro-inflammatory cytokines in peripheral blood samples, by regulating the JAK2-STAT3 pathway. [1] in vivo: In septic animals, GTS-21 significantly ameliorated GI motility, lowered systemic and colonic levels of IL-6, decreased colonic permeability, and decreased the number of positive cultures obtained from blood and mesenteric lymph nodes. Splenectomy prevented animals from developing sepsis-induced ileus. Chrna7 mice displayed a more severe septic phenotype, whereas GTS-21 remarkably was also beneficial in these animals. [2]
Blonanserin(AD-5423) is a D2/5-HT2 receptor antagonist, atypical antipsychotic. Target: D2 receptor; 5-HT2 receptorBlonanserin(AD-5423) is a relatively new atypical antipsychotic for the treatment of schizophrenia. Blonanserin belongs to a series of 4-phenyl-2-(1-piperazinyl)pyridines and acts as an antagonist at dopamine D2, D3, and serotonin 5-HT2A receptors. Blonanserin has low affinity for 5-HT2C, adrenergic α1, histamine H1, and muscarinic M1 receptors, but displays relatively high affinity for 5-HT6 receptors [1]. AD-5423 bound preferentially to dopamine (DA)-D2 (Ki, 14.8 nM; cf. haloperidol, 8.79 nM; and clozapine, 149 nM) and serotonin (5-HT)-S2 (Ki, 3.98 nM; cf. haloperidol, 26.8 nM; and clozapine, 8.66 nM) receptors. It displayed low affinity for adrenaline (Ad)-alpha-1 (Ki, 56.3 nM) receptors and was virtually devoid of binding to DA-D1 (Ki, 2870 nM), 5-HT-S3, Ad-alpha-2, Ad-beta, muscarine, tau-aminobutyric acid and benzodiazepine receptors. In addition, AD-5423 was only a weak inhibitor of DA, 5-HT and noradrenaline uptake systems. AD-5423 (0.2-2 mg/kg p.o.) decreased exploratory activity in mice. AD-5423 (10 mg/kg p.o.), unlike haloperidol, did not antagonize SKF38393-induced vacuous oral movements in rats. Head twitches induced by 1-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane in mice and by para-chloroamphetamine in rats were antagonized by AD-5423 at much lower doses (0.5-2 mg/kg p.o.) than those of haloperidol and clozapine [2].
S 16474 is an antagonist of Neurokinin-1 Receptor.
LY255582 is a pan-opioid antagonist and has high affinity for mu, delta, and kappa receptors (Ki: 0.4 nM, 5.2, 2.0 nM respectively). LY255582 can decrease food intake and body weight. LY255582 can be used for the research of obesity[1][2][3][4].