Org-26576 - CAS 1026791-61-6
Category: Inhibitor
Please be kindly noted products are not for therapeutic use. We do not sell to patients.
Molecular Formula:
C11H12N2O2
Molecular Weight:
204.229
COA:
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Targets:
AMPAR
Description:
Org-26576 is a positive allosteric modulator of AMPA receptor. Org-26576 increases the anteroventral and laterodorsal thalamus, cingulate cortex, dentate gyrus and CA3 subfield of the hippocampus in mice. Org-26576 is potentially used for the treatment of depression and attention deficit disorder.
Brife Description:
AMPA receptor positive allosteric modulator
Appearance:
Solid Powder
Synonyms:
Org-26576; Org26576; Org 26576; (3S)-3,4-Propano-2,3-dihydropyrido[3,2-f][1,4]oxazepine-5(4H)-one
MSDS:
Inquire
Application:
potential treatment of depression and attention deficit disorder
InChIKey:
FIKUEZUFASUKAH-QMMMGPOBSA-N
InChI:
InChI=1S/C11H12N2O2/c14-11-9-4-1-5-12-10(9)15-7-8-3-2-6-13(8)11/h1,4-5,8H,2-3,6-7H2/t8-/m0/s1
Canonical SMILES:
C1CC2COC3=C(C=CC=N3)C(=O)N2C1
1.Regionally selective and dose-dependent effects of the ampakines Org 26576 and Org 24448 on local cerebral glucose utilisation in the mouse as assessed by 14C-2-deoxyglucose autoradiography.
Jordan GR;McCulloch J;Shahid M;Hill DR;Henry B;Horsburgh K Neuropharmacology. 2005 Aug;49(2):254-64.
AMPA receptor potentiating drugs (e.g. ampakines) enhance glutamatergic neurotransmission, and may have potential therapeutic consequences in CNS disorders. The neuroanatomical basis of action for these compounds is at present unclear. This study aimed to identify the effects of two novel ampakines, Org 26576 and Org 24448, on local cerebral glucose use (LCGU) in the mouse. C57BL/6J mice received Org 26576 (0.1, 1, 10 mg/kg i.p.) or Org 24448 (3, 10, 30 mg/kg i.p.) or vehicle and LCGU was assessed using 14C-2-deoxyglucose autoradiography. Both compounds produced dose-dependent increases in LCGU with specific regional activation at low doses. Org 26576 (1 mg/kg) produced significant increases in 9 of the 43 areas examined, including the anteroventral and laterodorsal thalamus, cingulate cortex, dentate gyrus and CA3 subfield of the hippocampus. Org 24448 (3 mg/kg) produced significant increases in LCGU in 4 of the 43 regions examined, including the dorsal raphe nucleus, medial lateral habenula, CA1 subfield of the hippocampus and median forebrain bundle. Furthermore, the increases in LCGU observed with both Org 26576 (10 mg/kg) and Org 24448 (10 mg/kg) were blocked by pre-treatment with the AMPA receptor antagonist NBQX (10 mg/kg).
2.The ampakine, Org 26576, bolsters early spatial reference learning and retrieval in the Morris water maze: a subchronic, dose-ranging study in rats.
Hamlyn E;Brand L;Shahid M;Harvey BH Behav Pharmacol. 2009 Oct;20(7):662-7. doi: 10.1097/FBP.0b013e328331ba1b.
Ampakines have shown beneficial effects on cognition in selected animal models of learning. However, their ability to modify long-term spatial memory tasks has not been studied yet. This would lend credence to their possible value in treating disorders of cognition. We evaluated the actions of subchronic Org 26576 administration on spatial reference memory performance in the 5-day Morris water maze task in male Sprague-Dawley rats, at doses of 1, 3 and 10 mg/kg twice daily through intraperitoneal injection over 12 days. Org 26576 exerted a dose and time-dependent effect on spatial learning, with dosages of 3 and 10 mg/kg significantly enhancing acquisition on day 1. Globally, escape latency decreased significantly as the training days progressed in the saline and Org 26576-treated groups, indicating that significant and equal learning had taken place over the learning period. However, at the end of the learning period, all doses of Org 26576 significantly improved spatial memory storage/retrieval without confounding effects in the cued version of the task. Org 26576 offers early phase spatial memory benefits in rats, but particularly enhances search accuracy during reference memory retrieval.
3.Chronic treatment with AMPA receptor potentiator Org 26576 increases neuronal cell proliferation and survival in adult rodent hippocampus.
Su XW;Li XY;Banasr M;Koo JW;Shahid M;Henry B;Duman RS Psychopharmacology (Berl). 2009 Oct;206(2):215-22. doi: 10.1007/s00213-009-1598-0. Epub 2009 Jul 15.
RATIONALE: ;Currently available antidepressants upregulate hippocampal neurogenesis and prefrontal gliogenesis after chronic administration, which could block or reverse the effects of stress. Allosteric alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor potentiators (ARPs), which have novel targets compared to current antidepressants, have been shown to have antidepressant properties in neurogenic and behavioral models.;OBJECTIVES: ;This study analyzed the effect of the ARP Org 26576 on the proliferation, survival, and differentiation of neurons and glia in the hippocampus and prelimbic cortex of adult rats.;MATERIALS AND METHODS: ;Male Sprague-Dawley rats received acute (single day) or chronic (21 day) twice-daily intraperitoneal injections of Org 26576 (1-10 mg/kg). Bromodeoxyuridine (BrdU) immunohistochemistry was conducted 24 h or 28 days after the last drug injection for the analysis of cell proliferation or survival, respectively. Confocal immunofluorescence analysis was used to determine the phenotype of surviving cells.;RESULTS: ;Acute administration of Org 26576 did not increase neuronal cell proliferation. However, chronic administration of Org 26576 increased progenitor cell proliferation in dentate gyrus (approximately 40%) and in prelimbic cortex (approximately 35%) at the 10-mg/kg dosage.
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CAS 1026791-61-6 Org-26576

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