Spiperone hydrochloride (Spiroperidol hydrochloride) is a selective dopamine D2 receptor (Ki values of 0.06 nM, 0.6 nM, 0.08 nM, ~350 nM, ~3500 nM for D2, D3, D4, D1 and D5 receptors, respectively) and 5-HT2A/5-HT1A receptor (Kis of 1 nM/49 nM) antagonist. Spiperone hydrochloride is also a selective α1B-adrenoceptor antagonist. Spiperone hydrochloride activates calcium-activated chloride channel (CaCC). Antipsychotic and anti-inflammatory activities[1][2][3][4][5].
Ac-RYYRIK-NH2 is a potent and partial agonist on ORL1 transfected in CHO cells (Kd=1.5 nM) and behaves as a endogenous ligand of ORL1. Ac-RYYRIK-NH2 is a specific antagonist for the activation of G protein and competitively antagonizes the stimulation of [35S]-GTPgS binding to G proteins by nociceptin/orphanin FQ (noc/OFQ) in membranes and sections of rat brain[1].
5-HT6/5-HT2A receptor ligand-2 (compound 42) is a brain-penetrant dual 5-HT6/5-HT2A receptor antagonist, with a Ki of 25 nM and 32 nM, respectively. 5-HT6/5-HT2A receptor ligand-2 shows pro-cognitive properties[1].
Minaprine is a reversible inhibitor of MAO-A; weakly inhibit acetylcholinesterase; an antidepressant for treatment of depression.
SEVNLDAEFR is a substrate for BACE1[1].
Flunarizine is a potent dual Na+/Ca2+ channel (T-type) blocker. Flunarizine is a D2 dopamine receptor antagonist. Flunarizine shows anticonvulsive and antimigraine activity, and peripheral vasodilator effects[1][2][3][4][5].
Pimethixene is an antihistamine and anticholinergic agent, that is often used to treat hyperactivity, anxiety, sleep disorders, and allergy.
JP104, a aryl carbamate, is an irreversible FAAH inhibitor with a pIC50 of ~8[1].
(R)-Baclofen(STX209) is a selective GABAB receptor agonist. IC50 value:Target: GABAB receptorGABAB receptors are metabotropic receptors which produce slow inhibitory signals. By manipulating GABAB receptor activity using Baclofen, a variety of functions are studied including synaptic transmissions and antinociception events.
Zanapezil (TAK-147) free base is a potent, reversible and selective acetylcholine esterase (AChE) inhibitor. Zanapezil free base shows a potent and reversible inhibition of AChE activity in homogenates of the rat cerebral cortex (IC50=51.2 nM). Zanapezil free base shows a moderate inhibition of muscarinic M1 and M2 receptor binding with Ki values of 234 and 340 nM, respectively. Zanapezil free base can be used for the research of early stages of Alzheimer's disease (AD)[1].
γ-secretase inhibitior-1 is a gamma-secretase modulator, γ-secretase inhibitior-1 is useful for Alzheimer's disease.
Alniditan is a potent 5-HT1B/1D receptors agonist, with IC50 of 1.7 and 1.3 nM in HEK 293 cells, and pKi value of 8.96 and 9.40 for 5-HT1B/1D receptors, respectively.
Tiagabine hydrochloride(NO328 hydrochloride) is a selective gamma-aminobutyric acid (GABA) reuptake inhibitor.Target: GABA reuptake inhibitorTiagabine had an early onset of effect, as shown by significant reduction from baseline in mean HAM-A total score compared with placebo at week 1 (observed cases, p < .05). Tiagabine was generally well tolerated and not associated with changes in sexual functioning or depressive status. Symptoms of a discontinuation syndrome during taper were not observed. Tiagabine may be a useful treatment option for adult patients diagnosed with GAD [1]. Tiagabine was generally well tolerated; the most common adverse events were nausea, dizziness and headaches [2]. Tiagabine (0.1 microM), an antiepileptic drug that specifically inhibits the GAT-1 GABA transporter inhibited GABA uptake 50% in temporal cortex and 60-68% in white structures [3].
PF2562 (Example 6), a dopamine D1 ligand, ascts as a dopamine D1 agonist or partial agonist. PF2562 binds to human D1 receptor with a Ki of 113 nM. PF2562 exhibits activity against human D1 cAMP with an EC50 of 568 nM in HTRF assay[1].
Neuroinflammatory-IN-2 (compound 7i) is a potent anti-neuroinflammatory agent with an IC50 value of 10.30 μM for MAO-B, and 96.33% inhibition of Aβ1-42 aggregation at 25 μM. Neuroinflammatory-IN-2 has neuroprotective activity in H2O2-induced PC-12 cell injury. Neuroinflammatory-IN-2 also has biometal chelating abilities, antioxidant activity, anti-neuroinflammatory activity and appropriate BBB permeability. Neuroinflammatory-IN-2 can be used for researching Alzheimer’s disease[1].
Deudextromethorphan (AVP-786) hydrobromide hydrate is a deuterated form of dextromethorphan/quinidine (AVP-923, Nuedexta). Deudextromethorphan hydrobromide hydrate, a glutamate-targeting agent, is an orally active N-methyl-D-aspartate (NMDA) receptor antagonist. Deudextromethorphan hydrobromide hydrate can be used for the research of Pseudo-Bulbar Affect, traumatic brain injury, behavioral disinhibition and agitation in AD[1][2][3].
ZT 52656A is a selective kappa opioid agonist, used for the prevention or alleviation of pain in the eye.
LP 12 hydrochloride (compound 21) is a potent and selective 5-HT7 receptor agonist with a Ki of 0.13 nM. LP 12 hydrochloride displays selectivity for 5-HT7 over D2, 5-HT1A and 5-HT2A receptors (Ki values are 224 nM, 60.9 nM and >1000 nM, respectively)[1].
Kendomycin ((−)-TAN 2162) is a polyketide antibiotic with remarkable antibacterial and cancer cells cytotoxic activities. Kendomycin tends to be bacteriostatic rather than bactericidal and inhibits the growth of the methicillin-resistant Staphylococcus aureus (MRSA) strain COL at a low concentration (MIC of 5 μg/mL). Kendomycin is a potent antagonist of the endothelin receptor and a calcitonin receptor agonist which plays its role as an anti-osteoporotic agent[1][2].
Loperamide phenyl is an impurity of Loperamide (HY-B0418A). Loperamide is an opioid receptor agonist[1].
Anrikefon (HSK21542) is a kappa opioid receptor agonist with analgesic effect[1].
Epi-galantamine is a diastereomer of Galantamine. Epi-galantamine is an alkaloid isolated from the bulbs and flowers of Caucasian snowdrop (Galanthus woronowii). Epi-galantamine inhibits AChE with an EC50 of 45.7 μM[1][2][3].
Harmane, a β-Carboline alkaloid (BCA), is a potent neurotoxin that causes severe action tremors and psychiatric manifestations. Harmane shows 1000-fold selectivity for I1-Imidazoline receptor (IC50=30 nM) over α2-adrenoceptor (IC50=18 μM). Harmane is also a potent and selective inhibitor of monoamine oxidase (MAO) (IC50s=0.5 and 5 μM for human MAO A/B, respectively). Harmane exhibits comutagenic effect[1][2][3][4].
S-22153 is a potent melatonin receptor antagonist with EC50 values of 19 nM, 4.6 nM for hMT1 and hMT2 melatonin receptor, respectively. S-22153 has Ki values of 8.6 nM (CHO cells) and 16.3 nM (HEK cells) for hMT1, and 6.0 nM (CHO cells) and 8.2 nM (HEK cells) for hMT2. S-22153 is a specific ligand of MT1 and MT2 melatonin receptors subtypes[1][2].
M3 receptor antagonist 1 is a muscarinic M3-receptor antagonist extracted from patent WO 2008012290 A2, formula Ic.
(R)-Mirtazapine ((R)-Org3770) is a R(−)-enantiomer of Mirtazapine with antinociceptive properties in an animal model of acute thermal nociception. (R)-Mirtazapine is a 5-HT3 receptor antagonist. (R)-Mirtazapine is mainly metabolized by CYP3A4[1].
Fasciculin-II (Fas-2) is a potential inhibitor of acetylcholinesterase (AChE)[1].
Elinzanetant is a neurokinin receptors antagonist used for the research of Schizophrenia[1].
VU0152099 is a potent, selective, CNS-penetrant positive allosteric modulator of M4 mAChR with EC50 of 403 nM; shows no agonist activity but potentiates responses of M(4) to acetylcholine, and is devoid of activity at other mAChR subtypes or at a panel of other GPCRs; reverses amphetamine-induced hyperlocomotion in rats.
β2AR agonist /M-receptor antagonist-1 is a potent dual muscarinic antagonist/beta 2 agonist (MABA). β2AR agonist /M-receptor antagonist-1 potently relaxes either Carbachol (HY-B1208)-induced contraction, in the absence (MABA) or presence of Propranolol (M3; HY-B1208), or Histamine (HY-B1204)-induced contraction (β2)[1][2].