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].
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].
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].
Tiospirone is a 5-HT2 receptor antagonist with affinity for D2, 5-HT1a, and 5-HT7, and sigma receptors. Tiospirone decreases consumption of ethanol while increasing food intake of rats. Tiospirone can also reduce the reinforcing properties of Cocaine exhibited in the conditioned place preference paradigm[1][2].
Afoxolaner is an orally active isoxazoline insecticide/acaricide against Ixodes scapularis in dogs. Afoxolaner acts on the insect γ-aminobutyric acid receptor (GABA) and glutamate receptors, inhibiting GABA & glutamate-regulated uptake of chloride ions, resulting in excess neuronal stimulation and death of the arthropod[1][2].
Sarizotan (EMD 128130) is an orally active serotonin 5-HT1A receptor and dopamine receptor agonist. Sarizotan (EMD 128130) exhibits IC50 values of 6.5 nM (rat 5-HT1A), 0.1 nM (human 5-HT1A), 15.1 nM (rat D2), 17 nM (human D2), 6.8 nM (human D3) and 2.4 nM (human D4.2), respectively[1].
CHF-6366 is a potent M3 muscarinic antagonist and β2-adrenergic receptors agonist with pKi values of 10.4 and 11.4, respectively. CHF-6366 is also a weak calcium channel inhibitor (IC50~50 μM). CHF-6366 inhibits bronchoconstriction in guinea pigs. CHF-6366 can be used to research chronic obstructive pulmonary disease (COPD)[1].
Velusetrag (TD-5108) is a potent, selective and oral 5-HT4 receptor agonist with pKi of 7.7, shows >500-fold selectivity over other 5-HT receptors; displays >25-fold selectivity over other biogenic amine receptors, and no effect on hERG channels; increases the contractility of the canine antrum, duodenum and jejunum with higher potency than tegaserod, demonstrates robust in vivo activity in the guinea pig, rat and dog gastrointestinal tracts. Other Indication Phase 2 Clinical
Rivastigmine, an cholinesterase inhibitor(IC50= 5.5 uM), inhibits both butyrylcholinesterase and acetylcholinesteraseIC50 value: 5.5 uMTarget: AChERivastigmine is a parasympathomimetic or cholinergic agent for the treatment of mild to moderate dementia of the Alzheimer's type and dementia due to Parkinson's disease. The drug can be administered orally or via a transdermal patch; the latter form reduces the prevalence of side effects, which typically include nausea and vomiting. The drug is eliminated through the urine, and appears to have relatively few drug-drug interactions. Rivastigmine, a cholinesterase inhibitor, inhibits both butyrylcholinesterase and acetylcholinesterase. It is thought to work by inhibiting these cholinesterase enzymes, which would otherwise break down the brain chemical acetylcholine.
Ethyl 7-(diethylamino)-2-oxo-2H-chromene-3-carboxylate is a potent and selective inhibitor of hMAO-B with an IC50 of 45.52 μM[1].
Naloxonazine dihydrochloride is a specific μ-opioid receptor antagonist with an IC50 of 5.4 nM. Naloxonazine dihydrochloride also shows anti-leishmanial activity[1][2][3].
ABT-418 hydrochloride is a potent and selective agonist of nAChRs with cognitive enhancing and anxiolytic activities. ABT-418 hydrochloride activates cholinergic channel and can be used for research of Alzheimer's disease[1][2].
CX614 is a positive variant modulator of AMPA receptors that enhances excitatory postsynaptic potentials (amplitude and duration) by blocking and slowing the inactivation of responses to glutamate and automatically evokes excitatory postsynaptic currents in neuronal cultures. CX614 can be used in the study of psychiatric disorders such as depression[1][2].
[Pro9]-Substance P is a potent, reversible and selective agonist of NK-1 tachykinin receptors with an EC50 of 0.93 nM[1].
Hydrangenol 8-O-glucoside (Hydrangenol 8-O-β-D-glucopyranoside) can be isolated from Hydrangea macrophyllu. Hydrangenol 8-O-glucoside is an AChE inhibitor (IC50: 22.66 μM). Hydrangenol 8-O-glucoside inhibits passive cutaneous anaphylaxis (PCA) reaction[1][2].
SYM 2206 is a novel, potent, non-competitive AMPA receptor antagonist (IC50= 2.8 μM).IC50 value: 2.8 μMTarget: AMPA receptorSYM 2206 exerts anticonvulsant effects, elevates the threshold for maximal electroshock-induced seizures in mice. TID20 and TID50(threshold increasing doses by 20% and 50%) values for SYM 2206 are 4.25 and 10.56 mg/kg in the MEST test in mice, respectively.
SB742457 is a highly selective 5-HT6 receptor antagonist with pKi of 9.63; exhibits >100-fold selectivity over other receptors.IC50 Value: 9.63 (pKi)Target: 5-HT6 ReceptorSB-742457, a 5-HT6 receptor antagonist, which extends into Alzheimer disease (AD) sufferers further highlights the therapeutic promise of this mechanistic approach. Alzheimer's disease is a devastating neurological condition characterized by a progressive decline in cognitive performance accompanied by behavioral and psychological syndromes, such as depression and psychosis. With the subsequent development of selective 5-HT6 receptor antagonists, preclinical studies in rodents and primates have elucidated the function of this receptor subtype in more detail. It is increasingly clear that blockade of 5-HT6 receptors leads to an improvement of cognitive performance in a wide variety of learning and memory paradigms and also results in anxiolytic and antidepressant-like activity. SB-742457 is generally safe and well tolerated and may be efficacious in Alzheimer disease.
LY2795050 is a novel selective κ-opioid Receptor (KOR) antagonist (IC50=0.72 nM) and has the potential as a PET tracer to image KOR in vivo.IC50 Value: 0.72 nM (κ-opioid Receptor); 25.8 nM (κ-opioid) [1]Target: κ-opioid Receptorin vitro: LY2795050 displays full antagonist activity and high binding affinity and selectivity for KOR with a ki value of 0.72 nM [1].in vivo: In the brain, (11)C-LY2795050 displayed fast uptake kinetics (regional activity peak times of <20 min) and an uptake pattern consistent with the distribution of KOR in primates [1]. The LY2795050 ED50 at MOR was 119 μg/kg based on a 1-site model for 11C-carfentanil. The 1-site binding model was also deemed sufficient to describe the specific binding of 11C-LY2795050 at KOR. The ED50 at KOR estimated from the 1-site model was 15.6 μg/kg. Thus, the ED50 ratio for MOR:KOR was 7.6 [2].
Valnoctamide (Valmethamide), a derivative of valproate, suppresses benzodiazepine-refractory status epilepticus. Valnoctamide (Valmethamide) acts directly on GABAA receptors[1].
Substance P (5-11), the C-terminal heptapeptide of Substance P (Substance P (HY-P0201)), is a neuropeptide. Substance P (5-11) binds to NK-1 tachykinin receptor[1].
5-HT7 agonist 1 is a selective 5-HT7 receptor agonist, with an IC50 of 222.93 nM, can be used for the 5-HT7 receptor related disease, such as CNS disorders.
Flumexadol is an orally active non-narcotic analgesic. Flumexadol is a selective and affinity 5-HT2C receptor agonist with a Ki of 25 nM for the (+)-enantiomer of Flumexadol, and is 40-fold selective over the 5-HT2A receptor[1][2].
Physostigmine (Eserine) is a reversible acetylcholinesterase (AChE) inhibitor. Physostigmine can crosses the blood-brain barrier and elevate acetylcholine levels in the brain. Physostigmine can reverse memory deficits in transgenic mice with Alzheimer's disease. Physostigmine is also an antidote for anticholinergic poisoning[1][2][3].
Frakefamide is a potent analgesic that acts as a peripheral active μ-selective receptor agonist. Frakefamide is unable to penetrate the blood-brain-barrier and enter the central nervous system[1][2].
Ecopipam (SCH 39166) is a potent, selective and orally active antagonist of dopamine D1/D5 receptor, with Kis of 1.2 nM and 2.0 nM, respectively. Ecopipam shows more than 40-flod selectivity over D2, D4, 5-HT, and α2a receptor (Ki=0.98, 5.52, 0.08, and 0.73 μM, respectively). Ecopipam can be used for the research of schizophrenia, cocaine addition, and obesity[1][3].
Zolunicant (MM-110) is a potent inhibitor against nicotinic α3β4 receptors with an IC50 of 0.90 μM to combat addiction. Zolunicant can decrease the self-administration of several addictive agents including morphine, cocaine, methamphetamine, nicotine, and ethanol in rat model. Zolunicant can be studied as a potential treatment for multiple forms of drug abuse[1]. Zolunicant also reveals a potent leishmanicide effect against Leishmania amazonensis[2].
Ansofaxine is a serotonin-norepinephrine reuptake inhibitor (SNRI) used for the research of depression[1].
Sonepiprazole (PNU-101387G) is a selective D4 dopamine antagonist with Kis of 3.6, 10.1, 5147, and 7430 nM for rD4-Dopamine, hD4.2-Dopamine, rD2-Dopamine, and Histamine-H1 receptors, respectively[1].
PPDA is a subtype-selective NMDA receptor antagonist that preferentially binds to NR2C/NR2D containing receptors[1].