SUVN-G3031

Research use only, not for human use.

SUVN-G3031 (SUVN-G 3031) is a potent, selective, orally active histamine H3 receptor (H3R) inverse agonist with Ki of 8.73 nM (hH3R).

SUVN-G3031 (SUVN-G 3031) is a potent, selective, orally active histamine H3 receptor (H3R) inverse agonist with Ki of 8.73 nM (hH3R); exhibited an IC50 of 20 nM with progressive inhibition of (R)-α-methylhistamine (0.03 μM) induced agonist activity in [35S]-GTPγS binding assay using CHO-K1 cells expressing human H3R membranes; reverses (R)-α-methylhistamine induced dipsogenia in vivo.Parkinson Disease Phase 1 Clinical.

Samelisant free base displays inverse agonist activity and it exhibits very high selectivity towards H3R. The pEC50 value of histamine (8.5) for human H3 receptor increases to 8.2, 7.3 and 6.2 after treatment with 1, 10 and 100 nM of Samelisant, respectively. The pEC50 value of histamine (8.2) for rat H3 receptor increases to 7.9, 7.4 and 6.4 after treatment with 1, 10 and 100 nmol/L of Samelisant, respectively.Samelisant free base binds to the orthosteric site in a reversible manner with Kb values of 1.3 nM and 1.1 nM deduced from pA2 value for human and rat H3R, respectively.Samelisant free base also modulates dopamine and norepinephrine levels in the cerebral cortex while it has no effects on dopamine levels in the striatum or nucleus accumbens.

Treatment with Samelisant (10 and 30 mg/kg, p.o.) free base produces a significant increase in wakefulness with a concomitant decrease in non-rapid eye movement sleep (NREM) sleep in orexin knockout mice subjected to sleep electroencephalography (EEG). Samelisant free base also produces a significant decrease in direct rapid eye movement (REM) sleep onset (DREM) episodes, demonstrating its anticataplectic effects in an animal model relevant to narcolepsy.Samelisant free base treatment in mice produces a dose-dependent increase in tele-methylhistamine levels indicating the activation of histaminergic neurotransmission. Animal Model:Male Wistar rats or male C57BL6J mice Dosage:1, 3, 10, and 30 mg/kg Administration:Oral administration Result:Produced a dose-dependent increase in t-MH levels in the frontal cortex, hypothalamus and cerebrospinal fluid (CSF) of male Wistar rats. Produced a significant increase in t-MH levels of the frontal cortex, striatum and hypothalamus in mice.

SUVN-G 3031

GPCR/G Protein

Histamine Receptor

Histamine Receptor

Neurological Disease

Parkinson Disease

1394808-82-2

373.497

C21H31N3O3

>98% (HPLC)

——

C1CC(C1)N2CCC(CC2)OC3=CC=C(C=C3)NC(=O)CN4CCOCC4

N-[4-(l-Cyclobutylpiperidin-4-yloxy) phenyl]-2-(morpholin-4-yl) acetamide

(-20℃)

With Ice Pack

≥ 2 years