Dothiepin (Dosulepin; Dothep) is an antidepressant agent with sedative/anxiolytic activity. Dothiepin is an inhibitor preferring of noradrenaline uptake than serotonin uptake. Dothiepin facilitates noradrenergic neurotransmission via inhibiting the neuronal uptake. Dothiepin is also an antagonist of histamine H1-receptor without cardiotoxicity. Dothiepin exhibits significant analgesic activity in psychogenic facial pain，idiopathic fibromyalgia syndrome or rheumatoid arthritis[1].
NAS-181 is a potent and selective rat 5-hydroxytryptamine1B (r5-HT1B) antagonist with an Ki value of 47 nM. NAS-181 increases the 5-HTP accumulation in rat brain regions[1].
Wf-516 is an inhibitor of 5-HT reuptake, and an antagonist of 5-HT1A and 5-HT2A receptors, with Ki of 5 nM and 40 nM for 5-HT1A receptor and 5-HT2A receptor in humans, respectively, and has potent antidepressant activity.
LP44 (hydrochloride) is a selective 5-HT7 agonist with Ki of 0.22 nM. LP44 (hydrochloride) induces hypothermic effect in a dose-dependent manner by intracerebroventricular injection. LP44 (hydrochloride) not causes considerable hypothermic response by intraperitoneal administration[1].
Agomelatine D6 (S-20098 D6) is deuterium labeled Agomelatine. Agomelatine is a specific agonist of MT1 and MT2 receptors[1] .
PCPA methyl ester hydrochloride (4-Chloro-DL-phenylalanine methyl ester hydrochloride), a reversible tryptophan hydroxylase inhibitor, is a serotonin (5-HT) synthesis inhibitor. PCPA methyl ester hydrochloride crosses the blood brain barrier and reduces 5-HT central availability[1][2].
Temanogrel is a highly selective 5-HT2A receptor antagonist with a Ki of 4.9 nM.
5-HT2C agonist-3 ((+)-19) is a selective 5-HT2C agonist (EC50: 24 nM, Ki: 78 nM). 5-HT2C agonist-3 has antipsychotic drug-like activity. 5-HT2C agonist-3 blocks Amphetamine-induced hyperactivity[1].
ST1936 is a selective, nanomolar affinity 5-HT6 receptor agonist with Ki values of 13 nM, 168 nM and 245 nM for human 5-HT6, 5-HT7 and 5-HT2B receptors, respectively. ST1936 also shows moderate affinity (Ki of 300 nM) for human and rat α2 adrenergic receptor[1].
AVN-101 hydrochloride is a potent, brain-penetrant and orally active 5-HT7 receptor antagonist (Ki of 153 pM), with slightly lesser potency toward 5-HT6, 5-HT2A, and 5HT-2C receptors (Ki values of 2.04 nM, 1.56 nM, and 1.17 nM, respectively). AVN-101 hydrochloride also exhibits a rather high affinity toward histamine H1 (Ki of 0.58 nM) and adrenergic α2A, α2B, and α2C (Ki= 0.41-3.6 nM) receptors. AVN-101 hydrochloride can be studied in such diseases as general anxiety disorders, depression, schizophrenia, and multiple sclerosis[1].
Pindolol (LB-46) is a nonselective β-blocker with partial beta-adrenergic receptor agonist activity, also functions as a 5-HT1A receptor weak partial agonist / antagonist (Ki=33nM).
Ketanserin is a selective 5-HT receptor antagonist. Ketanserin also blocks hERG current (IhERG) in a concentration-dependent manner (IC50=0.11 μM).
R-96544 (free base) is a potent, selective and competitive 5-HT2 receptor antagonist. R-96544 (free base) inhibits platelet aggregation induced by serotonin, and inhibits 5-HT2A receptor-mediated contraction of guinea pig trachea[1].
DV-7028 is a selective 5-hydroxytryptamine2 (5-HT2) receptor antagonist[1].
Anpirtoline hydrochloride is a hydrochloride of anpirtoline. Anpirtoline is a agonist of 5-HT1B[1].
Lurasidone is an antagonist of both dopamine D2 and 5-HT7 with IC50s of 1.68 and 0.495 nM, respectively. Lurasidone is also a partial agonist of 5-HT1A receptor with an IC50 of 6.75 nM.
Quipazine dimaleate is a 5-HT agonist with a Ki value of 1.4 nM for displaces [3H]GR65630 from 5-HT3R in rat. Quipazine dimaleate shows antiviral activity against SARS-CoV-2 with an EC50 of 31.64 μM. Quipazine dimaleate behaves as a 5-HT3R antagonist in peripheral models. Quipazine dimaleate can be used for neurological disease research[1][2][3][4].
Asenapine(Org 5222) inhibits adrenergic receptor (α1, α2A, α2B, α2C) with Ki of 0.25-1.2 nM and also inhibits 5-HT receptor (1A, 1B, 2A, 2B, 2C, 5A, 6, 7) with Ki of 0.03-4.0 nM. IC50 Value: 0.25-1.2 nM(Ki for adrenergic receptor); 0.03-4.0 nM(Ki for 5-HT receptor)Target: 5-HT Receptor; Adrenergic ReceptorAsenapine maleate is a 5-HT receptor antagonist (5-HT1A,1B, 5-HT2A, 2B, 2C, 5-HT5A, 5-HT6 and 5-HT7), a D2 antagonist, and an antipsychotic. Asenapine has a broad receptor affinity profile for most serotonergic, dopaminergic, and adrenergic receptors, with no appreciable affinity for muscarinic receptors. Asenapine may be a helpful treatment option for patients with schizophrenia when weight gain, dyslipidemia, and endocrine abnormalities are a concern.
RS 39604 is a potent, selective, and orally active 5-HT4 receptor antagonist with a pKi of 9.1 in guinea pig striatal membranes. RS 39604 displays a low affinity (pKi<6.5) for 5-HT1A, 5-HT2C, 5-HT3, α1c, D1, D2, M1, M2, AT1, B1 and opioid mu receptors and moderate affinity for δ1, (pKi=6.8) and δ2 (pKi=7.8) sites[1].
NAN-190 is a serotonin receptor 5-HT antagonist. NAN-190 is a selective antagonist of 5-HT1A.Target: 5-HT in vitro: NAN-190 is a 5-HT1A antagonist. [3] NAN-190 is a selective antagonist of 5-HT1A. [1]in vivo: NAN-190 (0.5 mg/kg, ip), as a 5-HT1A receptor antagonist, is injected concomitantly with the effective dose of fluoxetine. NAN-190 (5-HT1A receptor antagonist) reverses the catalepsy-improving effect of fluoxetine in 6-OHDA lesioned rats. [2]
SB-215505 is a potent and subtype-selective 5-HT2B receptor antagonist with pKi values of 8.3, 6.77, 7.66 for 5-HT2B, 5-HT2A, 5-HT2C, respectively[1]. SB-215505 increases wakefulness and motor activity in rats[2].
Mesembrine ((+)-Mesembrine) a main alkaloid that features an aryloctahydroindole skeleton. Mesembrine is a 5-HT transporter inhibitor with a Ki of 1.4 nM. Mesembrine also inhibits phosphodiesterase 4B (PDE4B) with an IC50 of 7.8 μM[1][2].
SB 243213 dihydrochloride is an orally active, selective and high-affinity 5-hydroxytryptamine (5-HT)2C receptor antagonist with a pKi of 9.37 and a pKb of 9.8 for human 5-HT2C receptor. SB 243213 dihydrochloride has improved anxiolytic profile and has the potential for schizophrenia and motor disorders[1].
Sertindole, a neuroleptic, is one of the newer antipsychotic medications available.Target: Multi-targetIn vitro studies showed that sertindole exerts a potent antagonism at serotonin 5-HT2A, 5-HT2C, dopamine D2, and αl adrenergic receptors. Sertindole offers an alternative treatment option for refractory patients given its good EPS profile, favorable metabolic profile, and comparable efficacy to risperidone. Due to cardiovascular safety concerns, sertindole is available as a second-line choice for patients intolerant to other antipsychotic agents [1]. Sertindole should prove to be a very useful addition to the therapeutic options available for the treatment of psychotic disorders [2]. Sertindole improves negative symptoms, and is also effective for the treatment of neuroleptic-resistant schizophrenia. Sertindole is generally well tolerated and is associated with a low rate of extrapyramidal symptoms (EPS). Thus, sertindole is a useful option in the treatment of patients with schizophrenia [3].
AVN-492 is a very specific and highly-selective antagonist with picomolar affinity to 5-HT6R (Ki=91 pM).
Harmine is a natural dual-specificity tyrosine phosphorylation-regulated kinase ((DYRK)) inhibitor with anticancer and anti-inflammatory activities.
A small molecule 5-HT1A and 5-HT2A receptor antagonist and inhibitor of serotonin and dopamine reuptake, also possess affinity for the α1A- and α1B-adrenergic receptors. Depression Phase 2 Clinical
Perospirone (SM-9018 free base) is an orally active antagonist of 5-HT2A receptor (Ki=0.6 nM) and dopamine D2 receptor (Ki=1.4 nM), and also a partial agonist of 5-HT1A receptor (Ki=2.9 nM). Perospirone is an atypical antipsychotic drug and has the potential for schizophrenic disease[1][2].
cis-(Z)-Flupentixol dihydrochloride is a potent and selective DA D1/D2 receptor antagonist, with Ki values of 0.38 nM and 7 nM for D2 receptor and 5-HT2A, respectively[1][2].
5-HT6/5-HT2A receptor ligand-1 (compound 33) is a dual 5-HT6/5-HT2A receptor antagonist, with a Ki of 2 nM and 11 nM, respectively. 5-HT6/5-HT2A receptor ligand-1 has the potential for neurological and psychiatric disorders research[1].