Highly selective D2 dopamine receptor antagonist
17β-Estradiol sulfate-d4 (sodium) is the deuterium labeled 17β-Estradiol sulfate 17β-Estradiol sulfate (sodium), also known as β-Estradiol 3-sulfate sodium salt, is a neuroactive steroid[1][2].
Metixene hydrochloride is an anticholinergic antiparkinsonian agent, potently inhibits binding of quinuclidinyl benzilate (QNB) to the muscarinic receptor in rat brain cortical tissue, with an IC50 of 55 nM and a Kd of 15 nM[1].
Ziprasidone(CP88059) is a combined 5-HT (serotonin) and dopamine receptor antagonist which exhibits potent effects of antipsychotic activity.IC50 value:Target: 5-HT receptor; Dopamine receptorZiprasidone possesses an in vitro 5-HT2A/dopamine D2 receptor affinity ratio higher than any clinically available antipsychotic agent. In vivo, ziprasidone antagonizes 5-HT2A receptor-induced head twitch with 6-fold higher potency than for blockade of d-amphetamine-induced hyperactivity, a measure of central dopamine D2 receptor antagonism. Ziprasidone also has high affinity for the 5-HT1A, 5-HT1D and 5-HT2C receptor subtypes, which may further enhance its therapeutic potential [1]. Ziprasidone sulfoxide and sulfone were the major metabolites in human serum. The affinities of the sulfoxide and sulfone metabolites for 5-HT2 and D2 receptors are low with respect to ziprasidone, and are thus unlikely to contribute to its antipsychotic effects [2]. Ziprasidone was associated with significant differential adverse effects relative to placebo in BPM, BPD, and schizophrenia with no significant difference in weight gain in all 3 groups. Self-reported somnolence was increased across the 3 conditions. Subjects with BPM were more vulnerable to EPS than those with BPD or schizophrenia [3].Clinical indications: Bipolar I disorder; Bipolar disorder; Mania; SchizophreniaFDA Approved Date: February 2001
VU 0365114 is a mAChR M5 positive allosteric modulator, with an EC50 of 2.7 μM.
PNU-142633 is a high affinity, selective and orally active 5-HT1D receptor agonist with Kis of 6 nM and > 18 000 nM for human 5-HT1D receptor and human 5-HT1B receptor, respectively. PNU-142633 has anti-migraine efficacy[1][2].
Quinpirole (Hydrochloride) is a high-affinity agonist dopamine D2/D3 receptor.
Nereistoxin (Nereistoxine) is a neurotoxin isolated from the marine annelid Lumbriconereis heteropoda that acts by blocking nicotinic acetylcholine receptors[1].
Dynorphin A (1-8) is the predominant opioid peptide identified in placental tissue extracts. Dynorphin A (1-8) is the most likely natural ligand of the kappa receptor. The binding of 3H-Bremazocine to the purified kappa receptor is inhibited by Dynorphin A (1-8) (IC50=303 nM)[1][2].
Xaliproden hydrochloride (SR57746A) is a potent, selective and orally active agonist of 5-HT1A receptor, shows a high affinity for 5-HT1A specific binding sites in the rat hippocampus (IC50=3 nM). Xaliproden hydrochloride is also a selective antagonist of dopamine D2 receptor, has moderate affinity (IC50=0.1-1 μM). Xaliproden hydrochloride exhibits anti-depression and anti-anxiety effects, and it may possess therapeutic potential for the research of neurodegenerative diseases[1][2][3].
Ac-RYYRWK-NH2 is a potent and selective partial agonist for the nociceptin receptor (NOP), [3H]Ac-RYYRWK-NH2 binds to rat cortical membranes ORL1 with a Kd of 0.071 nM, but has no affinity for µ-, κ- or δ-opioid receptors[1].
Quetiapine Sulfoxide is a metabolite of Quetiapine. Quetiapine is an atypical antipsychotic approved for the treatment of schizophrenia, bipolar disorder, and along with an antidepressant to treat major depressive disorder.
Methylpiperic acid is a piperine alkaloid with significant MAO inhibitory activity (IC503.6 μM). Methylpiperic acid is less effective against MAO-B (IC 501.6 μM) than MAO-A (IC5027.1 μM) has a bidirectional inhibitory effect. Methylphenidate is used to treat mental disorders [1].
Quetiapine D4 hemifumarate is the deuterium labeled Quetiapine hemifumarate. Quetiapine hemifumarate is a 5-HT receptors agonist and a dopamine receptor antagonist. Antidepressant and anxiolytic effects[1].
KN-93 phosphate is a novel membrane-permeant synthetic inhibitor of purified neuronal CaMK-II, with Ki of 370 nM.
Granisetron-d3 (BRL 43694-d3) is the deuterium labeled Granisetron. Granisetron (BRL 43694) is a serotonin 5-HT3 receptor antagonist used as an antiemetic to treat nausea and vomiting following chemotherapy[1][2].
Methylnaltrexone D3 Bromide is the deuterium labeled Methylnaltrexone Bromide. Methylnaltrexone Bromide is a peripheral-acting opioid receptor antagonist that acts on the gastrointestinal tract to decrease opioid-induced constipation.
NNC-711 (hydrochloride) is a potent and selective inhibitor of GAT-1 ( GABA transporter 1) with an IC50 of 40 nM for hGAT-1. NNC-711 has anticonvulsant and analgesic effect in vivo and exhibits cognition-enhancing activity[1][2][3].
NS11394 is a potent and subtype-selective GABA(A) receptor-positive modulator; possesses a functional efficacy selectivity profile of alpha(5) > alpha(3) > alpha(2) > alpha(1) at GABA(A) alpha subunit-containing receptors.IC50 value:Target: GABA A receptor modulatorin vitro: NS11394 is unique in having superior efficacy at GABA(A)-alpha(3) receptors while maintaining low efficacy at GABA(A)-alpha(1) receptors. NS11394 has an excellent pharmacokinetic profile, which correlates with pharmacodynamic endpoints (CNS receptor occupancy), yielding a high level of confidence in deriving in vivo conclusions anchored to an in vitro selectivity profile and allowing for translation to higher species [2]. in vivo: Oral administration of NS11394 (1-30 mg/kg) to rats attenuated spontaneous nociceptive behaviors in response to hindpaw injection of formalin and capsaicin, effects that were blocked by the benzodiazepine site antagonist flumazenil [1]. NS11394 impairs memory in both rats and mice, which is possibly attributable to its efficacy at GABA(A)-alpha(5) receptors, albeit activity at this receptor might be relevant to its antinociceptive effects [2].
hBChE-IN-1 (compound 4), a quinolizidinyl derivative, is a potent hBChE inhibitor (IC50=7 nM) and highly selective over hAChE. hBChE-IN-1 shows inhibitory activity against tau and Aβ40 protein aggregation, with IC50 values of 20 and 4.3 μM, respectively. hBChE-IN-1 can be used for Alzheimer's disease research[1].
Ispronicline (TC-1734), an orally active, brain-selective α4β2 nicotine acetylcholine receptor (nAChR) partial agonist, has shown memory-enhancing properties in rodents and a good tolerability profile. Ispronicline binds to the α4β2 nAChR with high affinity (Ki=11 nM) and is highly selective to other nAChRs such as α7 nAChR and α3β4 nAChR[1][2].
mAChR-IN-1 is a potent muscarinic cholinergic receptor(mAChR) antagonist with IC50 of 17 nM.
Quetiapine(Ketipinor) is an atypical antipsychotic used in the treatment of schizophrenia, bipolar I mania, bipolar II depression, bipolar I depression.IC50 value: Target: 5-HT ReceptorQuetiapine is indicated for the treatment of schizophrenia as well as for the treatment of acute manic episodes associated with bipolar I disorder. The antipsychotic effect of quetiapine is thought by some to be mediated through antagonist activity at dopamine and serotonin receptors. Specifically the D1 and D2 dopamine, the alpha 1 adrenoreceptor and alpha 2 adrenoreceptor, and 5-HT1A and 5-HT2 serotonin receptor subtypes are antagonized. Quetiapine also has an antagonistic effect on the histamine H1 receptor.
Befloxatone (MD-370503) is an orally active, selective and reversible inhibitor of Monoamine Oxidase A (MAO-A) (IC50=4 nM). Befloxatone increases the tissue level of monoamine, striatal dopamine and cortical norepinephrine. Befloxatone has antidepressant potential[1].
L-655708 is a potent α5 subunit-selective GABAA receptor inverse agonist (Ki = 0.45 nM).IC50: 0.45 nM (Ki)Target: GABAin vitro: L-655708 is a potent, selective inverse agonist for the benzodiazepine site of GABAA receptors containing the α5 subunit (Ki = 0.45 nM). Displays 50-100-fold selectivity over GABAA receptors containing α1, α2, α3 orα6 subunits in combination with β3 and γ2. Enhances LTP in a mouse hippocampal slice model and increases spatial learning, without displaying proconvulsant activity.in vivo: L-655708 at 0.7 mg/kg, administered intraperitoneally, would result in 60-70% occupancy of α5 GABAA receptors with limited binding to α1, α2, and α3 subunit-containing GABAA receptors and no significant off-target behavioral effects, such as sedation and motor impairment.[1]
Z-Ile-Leu-aldehyde(Z-IL-CHO; GSI-XII) is a potent gamma-Secretase inhibitor; Notch signaling inhibitor.IC50 value:Target: gamma-Secretase inhibitorin vitro: GSI-XII induces apoptosis of murine MOPC315.BM myeloma cells with high Notch activity. GSI XII impairs murine osteoclast differentiation of receptor activator of NF-κB ligand (RANKL)-stimulated RAW264.7 cells in vitro [1]. Notch-signaling inhibition in HRS cells by the γ-secretase inhibitor (GSI) XII results in decreased alternative p52/RelB NF-κB signaling, interfering with processing of the NF-κB2 gene product p100 into its active form p52 [2]. GSI treatment induced morphologic erythroid differentiation and promoted hemoglobin production. GSI treatment suppressed short-term growth and colony formation, while treatment with GSI-XXI promoted the growth of AA cells [3].in vivo: In the murine MOPC315.BM myeloma model GSI XII has potent anti-MM activity and reduces osteolytic lesions as evidenced by diminished myeloma-specific monoclonal immunoglobulin (Ig)-A serum levels and quantitative assessment of bone structure changes via high-resolution microcomputed tomography scans [1].
CB2R/FAAH modulator-2 (compound 26) is a dual targeting modulator that acts as a CB2R agonist and FAAH inhibitor. The Ki values for CB2R/FAAH modulator-2 are 10.8 and 152.9 nM for CB2R and CB1R, respectively, and the IC50 value for FAAH is 6.2 μM. CB2R/FAAH modulator-2 can be used in studies related to cancer, deleterious inflammatory cascades occurring in neurodegenerative diseases, and COVID-19 infection[1].
Difelikefalin (CR-845; FE-202845) is a peripherally restricted and selective agonist of kappa opioid receptor (KOR). Difelikefalin produces anti-inflammatory effects and has the potential in modulating pruritus in conditions such as chronic kidney disease[1][2].
Kaempferol-3,7-di-O-β-glucoside (Kaempferol 3,7-diglucoside), a flavonol, possesses enzyme inhibition property towards α-amylase, α-glucosidase and Acetylcholinesterase. Kaempferol-3,7-di-O-β-glucoside protects differentiating neuronal cells, SH-SY5Y from Amyloid β peptide-induced injury. Kaempferol-3,7-di-O-β-glucoside has the potential for Alzheimer's research[1].
TB5 is a potent, selective and reversible inhibitor of hMAO-B with a Ki value of 0.11±0.01 μM.