RG-12915 is a selective 5-HT3 antagonist, with IC50 value of 0.16 nM.
Revexepride is a highly selective 5-HT4 receptor agonist, and a potential inducer of CYP3A4 enzyme, used for the treatment of gastroesophageal reflux disease.
cis-Urocanic acid is a 5-HT2A receptor agonist. cis-Urocanic acid binds to 5-HT receptor with relatively high affinity (Kd=4.6 nM). cis-Urocanic acid is an immune modulator that induces immunosuppression by binding to the 5-HT2A receptor[1].
Eletriptan (UK-116044) is a highly selective and orally active serotonin 5-HT1B and 5-HT1D receptor agonist, with pKi values of 8.0 and 8.9, respectively. Eletriptan has inhibitory effects on markers of neurogenic inflammation in rats. Eletriptan can be used for researching migraine[1].
EMD386088 is a potent serotonin 6 receptor (5-HT6R) agonist. EMD386088 induces cell death. EMD386088 regulates the activity of ERK1/2. EMD386088 has the potential for the research of alzheimer's disease (AD) and schizophrenia[1][2][3].
Carpindolol (SDZ21009) is a 5-HT1B receptor antagonist (pKd of 8.53 and pKB of 8.0) and a 5-HT1D receptor agonist (pEC50 of 5.91 and pKd of 6.37)[1].
LP-211 is a selective and blood−brain barrier penetrant 5-HT7 receptor agonist, with a Ki of 0.58 nM, with high selectivity over 5-HT1A receptor (Ki, 188 nM) and D2 receptor (Ki, 142 nM).
LY 293284 is a potent and selective 5-HT1A receptor agonist. LY 293284 results in a significant drop in core temperature and consumes more food in cholestasis rat induced by bile duct resection[1][2].
Trazodone (AF-1161 free base) is a serotonin receptor antagonist and reuptake inhibitor. Trazodone can be used for the research of major depressive disorder. Trazodone also has potential for sleep disorder research[1].
CART(62-76)(human,rat) is a neuropeptide (62-76 residues of the CART peptide) with neurotransmitter-like effects. CART(62-76)(human,rat) can modulate the activity of striatal noradrenergic and corticostriatal and hypothalamic serotoninergic (5-HT) system in the rat brain[1].
Hymenidin is a natural antagonist of serotonergic receptor and inhibitor of voltage-gated potassium channels. Hymenidin also induces cancer cell apoptosis[1][2][3].
Brexpiprazole-d8-1 is the deuterium labeled Brexpiprazole[1]. Brexpiprazole (OPC-34712), an atypical orally active antipsychotic drug, is a partial agonist of human 5-HT1A and dopamine D2L receptor with Kis of 0.12 nM and 0.3 nM, respectively. Brexpiprazole is also a 5-HT2A receptor antagonist with a Ki of 0.47 nM. Brexpiprazole also shows potent antagonist activity at human noradrenergic α1B (Ki=0.17 nM) and α2C receptors (Ki=0.59 nM)[2][3].
Bifeprunox is a potent dopamine D2-like and 5-HT1A receptor partial agonist with pKis of 7.19 and 8.83 for cortex 5-HT1A and striatum D2, and a pEC50 of 6.37 for hippocampus 5-HT1A, respectively. Bifeprunox is an antipsychotic for the research of schizophrenia[1][2].
Flibanserin is a novel multifunctional serotonin agonist and antagonist (MSAA) that improves sexual functioning in premenopausal women who suffer from reduced sexual interest and desire.IC50 value:Target: serotoninin vivo: The multifunctional serotonergic agent Flibanserin is both a serotonin 1A agonist and a serotonin 2A antagonist. Flibanserin theoretically improves sexual functioning by enhancing downstream release of dopamine and norepinephrine while reducing serotonin release in the brain circuits that mediate symptoms of reduced sexual interest and desire. Flibanserin, a new molecular entity for the treatment of hypoactive sexual desire disorder (HSDD) in premenopausal women. Flibanserin improves interest in and desire for sex by hypothetically targeting these circuits and causing the release of dopamine and norepinephrine while also reducing the release of serotonin. Flibanserin has demonstrated clinical efficacy in premenopausal women who have reduced interest in and desire for sex and has 2 principal pharmacologic actions in microcircuits: it is a full agonist at postsynaptic serotonin 5HT1A receptors and an antagonist at postsynaptic 5HT2A receptors.
Repinotan (BAY x 3702 free base) is a potent, selective, brain-penetrant and orally active 5-HT1A receptor agonist, with Ki values of 0.19 nM (calf hippocampus), 0.25 nM (rat and human cortex), and 0.59 nM (rat hippocampus). Repinotan has a weak affinity for other related receptors. Repinotan has pronounced neuroprotective effects[1].
Masupirdine free base (SUVN-502 free base) is a potent, selective, orally bioavailable, and brain penetrant 5-HT6 receptor antagonist (Ki of 2.04 nM for human 5-HT6 receptor). Masupirdine free base (SUVN-502 free base) shows high selectivity over 5-HT2A receptor and other 100 target sites, and has potential for treatment of Alzheimer's disease[1].
MIN-101 is a novel cyclic amide derivative that has high equipotent affinities for 5-HT2A and sigma-2 receptors (Ki of 7.53 nM and 8.19 nM for 5-HT2A and sigma-2, respectively).
GSK163090 is a potent, selective, and orally active 5-HT1A/B/D receptor antagonist with pKi of 9.4/8.5/9.7, and 6.3/6.7 for 5-HT1A/B/D, and dopamine D2/D3, respectively.IC50 value: 9.4/8.5/9.7 (pKi) [1]Target: 5-HT in vitro: GSK163090 demonstrates clear dose-dependent inhibition of the 8-OH-DPAT-induced hyperlocomotor activity (hLMA), with ED50 values ranging from 0.03 to 1 mg/kg. GSK163090 was devoid of agonist activity at R1 receptors, but rather it demonstrated amoderate functional antagonismof the phenylephrineinduced contraction of rabbit aorta (pIC50=6.9). [1]in vivo: Fromamong these analogues, the cyclic urea derivative, GSK163090, emerged due to its low hERG affinity and excellent in vitro DMPK profile. The superior quality of GSK163090 was further highlighted by its commendable in vivo pharmacokineticprofile in rat and its outstanding activity in the 5-HT1A PD model, where 50% efficacy was achieved at a blood concentration of 3 ng/mL. On the basis of these results and its promising preclinical developability profile, GSK163090 was selected as an appropriate development candidate for progression toward clinical proof-of-concept studies. [1]
Osemozotan hydrochloride (MKC242) is a selective 5-HT1A receptor agonist. Osemozotan hydrochloride decreases the number of c-Fos-positive cells caused by MAMP in mice. Osemozotan hydrochloride can be used for the research of depressive disorder[1][2].
Nefazodone is an orally active phenylpiperazine antidepressant. Nefazodone can potently and selectively block postsynaptic 5-HT2A receptors, and moderately inhibit 5-HT and noradrenaline reuptake. Nefazodone can also relieve the adverse effects of stress on the the immune system of mice. Nefazodone has a high affinity for CYP3A4 isoenzyme, which indicates that it has certain risk of drug-drug interaction[1][2][3].
Fabesetron (FK1052) is an orally active 5-HT3 receptor antagonist with 5-HT4 receptor antagonistic activity. Fabesetron (FK1052) can be used in the study for both acute and delayed emesis induced by cancer chemotherapy[1][2].
PNU-96415E is a selective D4/5-HT2A antagonist. PNU-96415E may have potential antipsychotic efficacy[1].
YM348 is a potent and orally active 5-HT2C receptor agonist, which shows a high affinity for cloned human 5-HT2C receptor (Ki: 0.89 nM).
SB269970 is a 5-HT7 receptor antagonist with pKi of 8.3, exhibits >50-fold selectivity against other receptors.IC50 Value: 8.3 (pKi for 5-HT7) [1]Target: 5-HT7 receptorin vitro: 5-CT-stimulated adenylyl cyclase activity in guinea-pig hippocampal membranes (pEC(50) of 8.4+/-0.2) was inhibited by SB-269970-A (0.3 microM) with a pK(B) (8.3+/-0.1) in good agreement with its antagonist potency at the human cloned 5-HT(7(a)) receptor and its binding affinity at guinea-pig cortical membranes. 5-HT(7) receptor mRNA was highly expressed in human hypothalamus, amygdala, thalamus, hippocampus and testis [1]. Cortical slices were loaded with [(3)H]-5-HT and release was evoked by electrical stimulation. 5-CT inhibited the evoked release of [(3)H]-5-HT in a concentration-dependent manner. SB-269970 had no significant effect on [(3)H]-5-HT release while the 5-HT(1B) receptor antagonist, SB-224289 significantly potentiated [(3)H]-5-HT release. In addition, SB-269970 was unable to attenuate the 5-CT-induced inhibition of release while SB-224289 produced a rightward shift of the 5-CT response, generating estimated pK(B) values of 7.8 and 7.6 at the guinea-pig and rat terminal 5-HT autoreceptors respectively [2].in vivo: Acute administration of SB-269970 (1 mg/kg) or amisulpride (3 mg/kg) ameliorated ketamine-induced cognitive inflexibility and novel object recognition deficit in rats. Both compounds were also effective in attenuating ketamine-evoked disruption of social interactions [3]. Pretreatment with a dose of SB-269970 (0.5 mM) that significantly affects sleep variables antagonized the LP-44 (2.5 mM)-induced suppression of REMS and of the number of REM periods [4].Toxicity: N/AClinical trial: N/A
PU02, a derivative of 6-MP (HY-13677), is a negative allosteric modulator (NAM) of 5-HT3 receptor, with IC50 values of 0.36 and 0.73 μM in HEK293 cells transfected with human 5-HT3A and 5-HT3AB receptors respectively[1][2].
GR 113808 is a potent and highly selective 5-HT4 receptor antagonist (pKb= 8.8). GR 113808 shows 300-fold selectivity over 5-HT1A, 5-HT1B, 5-HT2A, 5-HT2C and 5-HT3 receptors[1].
SEP-363856 （SEP-856）, an orally active and CNS active psychotropic agent with a unique, non-D2/5-HT2A mechanism of action, exerts its antipsychotic-like effects. SEP-363856 （SEP-856） has the potential for the treatment of schizophrenia[1].
5-HT2A&5-HT2C agonist-1 (Example 2) is a 5-HT2A & 5-HT2C agonist, with IC50s of 196 nM and 0.9 nM respectively. 5-HT2A&5-HT2C agonist-1 can be used for research of depression, alcoholism, tobacco and cocaine addiction, inflammation, cluster headache, PTSD, seizure disorders and other CNS disorders[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].