Transcrocetinate disodium, extracted from saffron (Crocus sativus L.), acts as an NMDA receptor antagonist with high affinity.
Fanapanel hydrate (ZK200775 hydrate) is a highly selective AMPA/kainate antagonist with little activity against NMDA; have Ki values of 3.2 nM, 100 nM, and 8.5 μM against quisqualate, kainate, and NMDA, respectively.
cis-ACPD is a potent agonist of NMDA receptor, with an IC50 of 3.3 μM. And it is also a selective agonist of group II mGluR, with EC50s of 13 μM and 50 μM for mGluR2 and mGluR4, respectively[1][2].
Felbamate-d4 (W-554-d4) is the deuterium labeled Felbamate. Felbamate (W-554) is a potent nonsedative anticonvulsant whose clinical effect may be related to the inhibition of N-methyl-D-aspartate (NMDA).
Cl-HIBO is a highly subtype-selective GluR1/2 agonist (EC50=4.7 and 1.7 μM, respectively). Cl-HIBO is a potent AMPA receptor agonist (IC50=0.22 μM). Cl-HIBO has desensitizing properties[1].
NMDA receptor modulator 3 (Compound 99) is a potent NMDA receptor modulator. NMDA receptor modulator 3 can be used for neurological disorder research[1].
CNS-5161 is a novel NMDA ion-channel antagonist that interacts with the NMDA receptor/ion channel site to produce a noncompetitive blockade of the actions of glutamate.
Memantine-d3 (hydrochloride) is deuterium labeled Memantine. Memantine is an orally active, noncompetitive N-methyl-D-aspartate receptor (NMDAR) antagonist. Memantine can be used for the research of moderate-to-severe Alzheimer's disease (AD)[1][2][3].
Procyclidine hydrochloride is a potent anti-cholinergic agent, and is also known to have NMDA antagonist properties.
DNQX is a AMPA receptor antagonists.target: AMPA receptorIn vitro: DNQX, added 2 h after cell plating, induces a dose-dependent neurotoxicity.
Glycine-d5 is the deuterium labeled Glycine. Glycine is an inhibitory neurotransmitter in the CNS and also acts as a co-agonist along with glutamate, facilitating an excitatory potential at the glutaminergic N-methyl-D-aspartic acid (NMDA) receptors.
Selfotel (CGS 19755) is a selective and competitive antagonist at N-methyl-D-aspartate (NMDA)-preferring receptor. CGS 19755 inhibits the binding of [3H]-3-(2-carboxypiperazin-4-yl)propyl-1-phosphonic acid to NMDA-type receptors with an IC50 of 50 nM[1][2].
Fluoroethylnormemantine, a derivative of Memantine, is an antagonist of the N-methyl-D-aspartate (NMDA) receptor. [18F]-Fluoroethylnormemantine can be used as a positron emission tomography (PET) tracer. Fluoroethylnormemantine exhibits anti-amnesic, neuroprotective, antidepressant-like and fear-attenuating effects[1][2][3].
Traxoprodil mesylate (CP101,606) is a potent and selective NMDA antagonist and protect hippocampal neurons with an IC50 of 10 nM.
GluR6 antagonist-1 is a benzothiophene derivative, acting as a GluR6 antagonist. GluR6 antagonist-1 can be used for researching acute and chronic neurological disorders[1].
MDL-29951 is a novel glycine antagonist of NMDA receptor activation, with Ki of 0.14 μM for [3H]glycine binding in vitro and in vivo.
PF-04958242 is a novel potent, selctive, and orally-active AMPA receptor (AMPAR) positive allosteric modulator (PAM) with Ki of 170 nM, EC50 of 370 nM; is under development for the treatment of cognitive symptoms in schizophrenia. Schizophrenia Phase 1 Discontinued
L-Glutamic acid-13C5 is the 13C-labeled L-Glutamic acid. L-Glutamic acid acts as an excitatory transmitter and an agonist at all subtypes of glutamate receptors (metabotropic, kainate, NMDA, and AMPA). L-Glutamic acid shows a direct activating effect on the release of DA from dopaminergic terminals.
Withaphysalin D is a selective antagonist against the N-methyl-D-aspartate receptor (NMDAR) containing GluN2B. Withaphysalin D can be isolated from water lilies and has neuroprotective properties. Withaphysalin D is able to cross the blood-brain barrier[1].
Leptin (116-130) is a bioactive leptin fragment. Leptin (116-130) promotes AMPA receptor trafficking to synapses and facilitate activity-dependent hippocampal synaptic plasticity. Leptin (116-130) prevents hippocampal synaptic disruption and neuronal cell death in models of amyloid toxicity. Leptin (116-130) has the potential for the research of Alzheimer's disease (AD)[1].
Ro 25-6981 is a potent and selective activity-dependent blocker of NMDA receptors containing the NR2B subunit. IC50 values are 0.009 and 52 μM for cloned receptor subunit combinations NR1C/NR2B and NR1C/NR2A respectively.IC50 value: 9 nM [1]Target: NMDA receptor subtype of NR1C & NR2Bin vitro: Ro 25-6981 inhibited 3H-MK-801 binding to rat forebrain membranes in a biphasic manner with IC50 values of 0.003 microM and 149 microM for high- (about 60%) and low-affinity sites, respectively. NMDA receptor subtypes expressed in Xenopus oocytes were blocked with IC50 values of 0.009 microM and 52 microM for the subunit combinations NR1C & NR2B and NR1C & NR2A, respectively, which indicated a >5000-fold selectivity [1]. Increasing the concentration of spermidine did not change the efficacy of RO 25-6981 and minimally changed the IC(50) value. Epsilon1Q336R receptors were more inhibited by ifenprodil and RO 25-9681 than wildtype epsilon1 receptors in ligand binding assays but not in functional assays [2].in vivo: Intrathecal injection of Ro 25-6981 significantly enhanced the paw withdrawal mechanical threshold and paw withdrawal thermal latency after the operation. Significant change has been observed after intrathecal injection of 800.0 μg of Ro 25-6981 and at 2h after operation in the oblique pull test degree and BBB rating score. Pretreatment of Ro 25-6981 decreased the high level expression of NR2B with tyrosine phosphorylation in spinal dorsal horn of the rat model after the operation [3].
Bupivacaine hydrochloride monohydrate is a NMDA receptor inhibitor. Bupivacaine hydrochloride monohydrate can block sodium, L-calcium, and potassium channels. Bupivacaine hydrochloride monohydrate potently blocks SCN5A channels with the IC50 of 69.5 μM. Bupivacaine hydrochloride monohydrate can be used for the research of chronic pain[1][2][3].
IEM-1460 blocks both AMPA and NMDA glutamate receptor with anticonvulsant effect in vivo[1].
Glycine-d3 is the deuterium labeled Glycine. Glycine is an inhibitory neurotransmitter in the CNS and also acts as a co-agonist along with glutamate, facilitating an excitatory potential at the glutaminergic N-methyl-D-aspartic acid (NMDA) receptors.
Mephenesin is an NMDA receptor antagonist, is a centrally acting muscle relaxant.Target: NMDA receptor
L-701324 is an orally active and long acting anticonvulsant with high affinity and selectivity for the glycine site on the NMDA receptor.Target: NMDA ReceptorL-701324 is a potent, active anticonvulsant with a reduced propensity to activate mesolimbic dopaminergic systems in rodents. L-701324 exhibits a beneficial action in the animal model of parkinsonian rigidity, but not that of parkinsonian akinesia. L-701324 (2.5-40 mg/kg, i.p.) dose-dependently decreased the muscle tone enhanced by haloperidol (1-5 mg/kg, i.p.).
Glycine-1-13C is the 13C-labeled Glycine. Glycine is an inhibitory neurotransmitter in the CNS and also acts as a co-agonist along with glutamate, facilitating an excitatory potential at the glutaminergic N-methyl-D-aspartic acid (NMDA) receptors.
Naspm (1-Naphthyl acetyl spermine) trihydrochloride, a synthetic analogue of Joro spider toxin, is a calcium permeable AMPA (CP-AMPA) receptors antagonist.
CNQX (FG9065) is a potent AMPA/kainate receptor antagonist.
CNS-5161 hydrochloride is a novel NMDA ion-channel antagonist that interacts with the NMDA receptor/ion channel site to produce a noncompetitive blockade of the actions of glutamate.