SHA 68Selective neuropeptide S receptor antagonist CAS# 847553-89-3 |
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Quality Control & MSDS
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Chemical structure
3D structure
| Cas No. | 847553-89-3 | SDF | Download SDF |
| PubChem ID | 11374217 | Appearance | Powder |
| Formula | C26H24FN3O3 | M.Wt | 445.49 |
| Type of Compound | N/A | Storage | Desiccate at -20°C |
| Solubility | DMSO : 250 mg/mL (561.18 mM; Need ultrasonic) | ||
| Chemical Name | N-[(4-fluorophenyl)methyl]-3-oxo-1,1-diphenyl-5,6,8,8a-tetrahydro-[1,3]oxazolo[3,4-a]pyrazine-7-carboxamide | ||
| SMILES | C1CN2C(CN1C(=O)NCC3=CC=C(C=C3)F)C(OC2=O)(C4=CC=CC=C4)C5=CC=CC=C5 | ||
| Standard InChIKey | SFRQIPRTNYHJHP-UHFFFAOYSA-N | ||
| Standard InChI | InChI=1S/C26H24FN3O3/c27-22-13-11-19(12-14-22)17-28-24(31)29-15-16-30-23(18-29)26(33-25(30)32,20-7-3-1-4-8-20)21-9-5-2-6-10-21/h1-14,23H,15-18H2,(H,28,31) | ||
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months. Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it. |
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| About Packaging | 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial. 2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial. 3. Try to avoid loss or contamination during the experiment. |
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| Shipping Condition | Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request. | ||
| Description | Selective neuropeptide S receptor (NPSR) antagonist (IC50 values are 22.0 and 23.8 nM for human NPSR Asn107 and Ile107 variants respectively). Displays no activity against a range of 14 GPCRs, including vasopressin and oxytocin receptors. |
SHA 68 Dilution Calculator
SHA 68 Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 2.2447 mL | 11.2236 mL | 22.4472 mL | 44.8944 mL | 56.118 mL |
| 5 mM | 0.4489 mL | 2.2447 mL | 4.4894 mL | 8.9789 mL | 11.2236 mL |
| 10 mM | 0.2245 mL | 1.1224 mL | 2.2447 mL | 4.4894 mL | 5.6118 mL |
| 50 mM | 0.0449 mL | 0.2245 mL | 0.4489 mL | 0.8979 mL | 1.1224 mL |
| 100 mM | 0.0224 mL | 0.1122 mL | 0.2245 mL | 0.4489 mL | 0.5612 mL |
| * Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations. | |||||
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Further studies on the pharmacological profile of the neuropeptide S receptor antagonist SHA 68.[Pubmed:20172007]
Peptides. 2010 May;31(5):915-25.
Neuropeptide S (NPS) regulates various biological functions by selectively activating the NPS receptor (NPSR). Previous studies demonstrated that the non-peptide molecule SHA 68 acts as a selective NPSR antagonist. In the present study the pharmacological profile of SHA 68 has been further investigated in vitro and in vivo. In cells expressing the mouse NPSR SHA 68 was inactive per se up to 10microM while it antagonized NPS-stimulated calcium mobilization in a competitive manner showing a pA(2) value of 8.06. In the 10-50mg/kg range of doses, SHA 68 counteracted the stimulant effects elicited by NPS, but not those of caffeine, in mouse locomotor activity experiments. In the mouse righting reflex assay SHA 68 fully prevented the arousal-promoting action of the peptide. The anxiolytic-like effects of NPS were slightly reduced by SHA 68 in the mouse open field, fully prevented in the rat elevated plus maze and partially antagonized in the rat defensive burying paradigm. Finally, SHA 68 was found poorly active in antagonizing the NPS inhibitory effect on palatable food intake in rats. In all assays SHA 68 did not produce any effect per se. In conclusion, the present study demonstrated that SHA 68 behaves as a selective NPSR antagonist that can be used to characterize the in vivo actions of NPS. However the usefulness of this research tool is limited by its poor pharmacokinetic properties.
Synthesis and separation of the enantiomers of the neuropeptide S receptor antagonist (9R/S)-3-oxo-1,1-diphenyl-tetrahydro-oxazolo[3,4-a]pyrazine-7-carboxylic acid 4-fluoro-benzylamide (SHA 68).[Pubmed:21466221]
J Med Chem. 2011 Apr 28;54(8):2738-44.
This study reports the synthesis, chromatographic separation, and pharmacological evaluation of the two enantiomers of the neuropeptide S receptor (NPSR) antagonist (9R/S)-3-oxo-1,1-diphenyl-tetrahydro-oxazolo[3,4-a]pyrazine-7-carboxylic acid 4-fluoro-benzylamide (SHA 68). The (9R)-3-oxo-1,1-diphenyl-tetrahydro-oxazolo[3,4-a]pyrazine-7-carboxylic acid 4-fluoro-benzylamide (compound 10) and (9S)-3-oxo-1,1-diphenyl-tetrahydro-oxazolo[3,4-a]pyrazine-7-carboxylic acid 4-fluoro-benzylamide (compound 10a) were synthesized and their purity assessed by chiral chromatography. The absolute configuration of the enantiomer 10 has been assigned from the crystal structure of the corresponding (S)-phenyl ethyl amine derivative 8. Calcium mobilization studies performed on cells expressing the recombinant NPSR demonstrated that compound 10 is the active enantiomer while the contribution of 10a to the NPSR antagonist properties of the racemic mixture is negligible.
Synthesis and pharmacological in vitro and in vivo profile of 3-oxo-1,1-diphenyl-tetrahydro-oxazolo[3,4-a]pyrazine-7-carboxylic acid 4-fluoro-benzylamide (SHA 68), a selective antagonist of the neuropeptide S receptor.[Pubmed:18337476]
J Pharmacol Exp Ther. 2008 Jun;325(3):893-901.
Neuropeptide S (NPS) has been shown to modulate arousal, sleep wakefulness, anxiety-like behavior, and feeding after central administration of the peptide agonist to mice or rats. We report here the chemical synthesis and pharmacological characterization of SHA 66 (3-oxo-1,1-diphenyl-tetrahydro-oxazolo[3,4-a]pyrazine-7-carboxylic acid benzylamide) and SHA 68 (3-oxo-1,1-diphenyl-tetrahydro-oxazolo[3,4-a]pyrazine-7-carboxylic acid 4-fluoro-benzylamide), two closely related bicyclic piperazines with antagonistic properties at the NPS receptor (NPSR). The compounds block NPS-induced Ca2+ mobilization, and SHA 68 shows displaceable binding to NPSR in the nanomolar range. The antagonistic activity of SHA 68 seems to be specific because it does not affect signaling at 14 unrelated G protein-coupled receptors. Analysis of pharmacokinetic parameters of SHA 68 demonstrates that the compound reaches pharmacologically relevant levels in plasma and brain after i.p. administration. Furthermore, peripheral administration of SHA 68 in mice (50 mg/kg i.p.) is able to antagonize NPS-induced horizontal and vertical activity as well as stereotypic behavior. Therefore, SHA 68 could be a useful tool to characterize physiological functions and pharmacological parameters of the NPS system in vitro and in vivo.
Neuropeptide S enhances memory during the consolidation phase and interacts with noradrenergic systems in the brain.[Pubmed:21150909]
Neuropsychopharmacology. 2011 Mar;36(4):744-52.
Neuropeptide S (NPS) has been shown to promote arousal and anxiolytic-like effects, as well as facilitation of fear extinction. In rodents, NPS receptors (NPSR) are prominently expressed in brain structures involved in learning and memory. Here, we investigate whether exogenous or endogenous NPS signaling can modulate acquisition, consolidation, or recall of emotional, spatial, and contextual memory traces, using two common behavioral paradigms, inhibitory avoidance (IA) and novel object recognition. In the IA paradigm, immediate and delayed post-training central NPS administration dose dependently enhanced memory retention in mice, indicating that NPS may act during the consolidation phase to enhance long-term memory. In contrast, pre-training or pre-test NPS injections were ineffective, suggesting that NPS had no effect on IA memory acquisition or recall. Peripheral administration of a synthetic NPSR antagonist attenuated NPS-induced IA memory enhancement, showing pharmacological specificity. NPS also enhanced hippocampal-dependent non-aversive memory in the novel object recognition task. In contrast, NPSR knockout mice displayed deficits in IA memory, novel object recognition, and novel place or context recognition, suggesting that activity of the endogenous NPS system is required for memory formation. Blockade of adrenergic signaling by propranolol attenuated NPS-induced memory enhancement in the IA task, indicating involvement of central noradrenergic systems. These results provide evidence for a facilitatory role of NPS in long-term memory, independent of memory content, possibly by acting as a salience signal or as an arousal-promoting factor.
