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ST4206 Sale

目录号 : GC31256

ST4206是一种有效的腺苷A2A受体(adenosineA2A)拮抗剂,对腺苷A2A受体和腺苷A1受体的Ki值分别为12nM和197nM。

ST4206 Chemical Structure

Cas No.:1246018-36-9

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实验参考方法

Animal experiment:

Mice[1]Catalepsy is induced by haloperidol (2 mg/kg) injected intraperitoneally (i.p.) 2.5 h before oral administration of 10, 20, and 40 mg/kg ST1535, ST3932, ST4206 or vehicle. An additional group without haloperidol (control group) with only vehicle is administered. At time 0 min, successful induction of catalepsy in all animals is checked before compounds administration, then, catalepsy is scored every 60 min for 3 h. Each mouse is gently placed by its forepaws on a wire at a height of 4.5 cm. The catalepsy is measured as the time necessary for the animal to step down with at least one forepaw with a cut off time for each animal of 60 s; after this time the mouse is gently removed from the wire. Catalepsy is recorded using a video-camera and by an observer who is unaware of the treatment. Rats[1] Two weeks after the unilateral 6-OHDA-lesion, rats are screened on the basis of their contralateral rotation in response to l-DOPA (50 mg/kg i.p.)+benserazide (30 mg/kg i.p.). Rats not showing at least 200 contralateral rotations during 3 h testing period are eliminated from the study. One week later, rats are administered with the threshold dose of l-DOPA (3 mg/kg i.p.)+benserazide (6 mg/kg i.p.) in combination with vehicle (10% sucrose and 0.3% Tween 80 in sterile water i.p.) or with ST1535, ST3932 and ST4206 respectively (10, 20 and 40 mg/kg i.p.). l-DOPA is administered 5 min after vehicle or molecules in study, whereas benserazide is administered 30 min before l-DOPA injection. Contralateral rotations are measured every 10 min for 2 h by Rotameter system.

References:

[1]. Stasi MA, et al. Animal models of Parkinson׳s disease: Effects of two adenosine A2A receptor antagonists ST4206 and ST3932, metabolites of 2-n-Butyl-9-methyl-8-[1,2,3]triazol-2-yl-9H-purin-6-ylamine (ST1535).
[2]. de Lera Ruiz M, et al. Adenosine A2A receptor as a drug discovery target. J Med Chem. 2014 May 8;57(9):3623-50.

产品描述

ST4206 is a potent adenosine A2A antagonist, with Kis of 12 nM and 197 nM for adenosine A2A receptor and adenosine A1 receptor, respectively.

ST4206 inhibits agonist-induced cAMP accumulation with an IC50 of 990 nM[1].

ST4206 (10, 20, and 40 mg/kg, p.o.) antagonizes haloperidol-induced catalepsy, and increases motor activity in a dose dependent manner in mice. ST4206 (20 and 40 mg/kg) significantly increases the number of contralateral turns induced by l-DOPA in rats[1]. ST4206 is orally active at concentrations of 10, 20, and 40 mg/kg in haloperidol-induced catalepsy in mice[2].

[1]. Stasi MA, et al. Animal models of Parkinson?s disease: Effects of two adenosine A2A receptor antagonists ST4206 and ST3932, metabolites of 2-n-Butyl-9-methyl-8-[1,2,3]triazol-2-yl-9H-purin-6-ylamine (ST1535). [2]. de Lera Ruiz M, et al. Adenosine A2A receptor as a drug discovery target. J Med Chem. 2014 May 8;57(9):3623-50.

Chemical Properties

Cas No. 1246018-36-9 SDF
Canonical SMILES CC(CCC1=NC(N)=C2N=C(N3N=CC=N3)N(C)C2=N1)=O
分子式 C12H14N8O 分子量 286.29
溶解度 Soluble in DMSO 储存条件 Store at -20°C
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1 mM 3.493 mL 17.4648 mL 34.9296 mL
5 mM 0.6986 mL 3.493 mL 6.9859 mL
10 mM 0.3493 mL 1.7465 mL 3.493 mL
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Research Update

Animal models of Parkinson?s disease: Effects of two adenosine A2A receptor antagonists ST4206 and ST3932, metabolites of 2-n-Butyl-9-methyl-8-[1,2,3]triazol-2-yl-9H-purin-6-ylamine (ST1535)

Antagonism of the adenosine A2A receptor represents a promising strategy for non-dopaminergic treatment of Parkinson?s disease (PD). Previously, the adenosine A2A receptor antagonist ST1535 was shown to possess potential beneficial effects in animal models of PD. Two metabolites of ST1535, namely ST3932 and ST4206, were tested in vitro to assess their affinity and activity on cloned human A2A adenosine receptors, and their metabolic profile. Additionally, ST3932 and ST4206 were investigated in vivo in animal models of PD following oral/intraperitoneal administration of 10, 20 and 40mg/kg using ST1535 as a reference compound. ST3932 and ST4206 displayed high affinity and antagonist behaviour for cloned human adenosine A2A receptors. The Ki values for ST1535, ST3932 and ST4206 were 8, 8 and 12nM, respectively, and their IC50 values on cyclic AMP were 427, 450 and 990nM, respectively. ST1535, ST3932 and ST4206 antagonized (orally) haloperidol-induced catalepsy in mice, potentiated (intraperitoneally) the number of contralateral rotations induced by l-3,4-dihydroxyphenylalanine (l-DOPA) (3mg/kg) plus benserazide (6mg/kg) in 6-Hydroxydopamine hydrobromide (6-OHDA)-lesioned rats, and increased mouse motor activity by oral route. Thus, ST3932 and ST4206, two ST1535 metabolites, show a pharmacological activity similar to ST1535, both in vitro and in vivo, and may be regarded as an interesting pharmacological alternative to ST1535.

Adenosine A2A receptor antagonists in Parkinson's disease: progress in clinical trials from the newly approved istradefylline to drugs in early development and those already discontinued

Neurotransmitters other than dopamine, such as norepinephrine, 5-hydroxytryptamine, glutamate, adenosine and acetylcholine, are involved in Parkinson's disease (PD) and contribute to its symptomatology. Thus, the progress of non-dopaminergic therapies for PD has attracted much interest in recent years. Among new classes of drugs, adenosine A2A antagonists have emerged as promising candidates. The development of new highly selective adenosine A2A receptor antagonists, and their encouraging anti-parkinsonian responses in animal models of PD, has provided a rationale for clinical trials to evaluate the therapeutic potential and the safety of these agents in patients with PD. To date, the clinical research regarding A2A antagonists and their potential utilization in PD therapy continues to evolve between drugs just or previously discontinued (preladenant and vipadenant), new derivatives in development (tozadenant, PBF-509, ST1535, ST4206 and V81444) and the relatively old drug istradefylline, which has finally been licensed as an anti-parkinsonian drug in Japan. All these compounds have been shown to have a good safety profile and be well tolerated. Moreover, results from phase II and III trials also demonstrate that A2A antagonists are effective in reducing off-time, without worsening troublesome dyskinesia, and in increasing on-time with a mild increase of non-troublesome dyskinesia, in patients at an advanced stage of PD treated with L-DOPA. In addition, early findings suggest that A2A antagonists might also be efficacious as monotherapy in patients at an early stage of PD. This review summarizes pharmacological and clinical data available on istradefylline, tozadenant, PBF-509, ST1535, ST4206, V81444, preladenant and vipadenant.