Ipsapirone

Selective 5-HT1A agonist CAS# 95847-70-4

Ipsapirone

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Chemical structure

Ipsapirone

3D structure

Chemical Properties of Ipsapirone

Cas No. 95847-70-4 SDF Download SDF
PubChem ID 56971 Appearance Powder
Formula C19H23N5O3S M.Wt 401.48
Type of Compound N/A Storage Desiccate at -20°C
Synonyms TVX Q 7821
Solubility Soluble to 10 mM in DMSO
Chemical Name 1,1-dioxo-2-[4-(4-pyrimidin-2-ylpiperazin-1-yl)butyl]-1,2-benzothiazol-3-one
SMILES C1CN(CCN1CCCCN2C(=O)C3=CC=CC=C3S2(=O)=O)C4=NC=CC=N4
Standard InChIKey TZJUVVIWVWFLCD-UHFFFAOYSA-N
Standard InChI InChI=1S/C19H23N5O3S/c25-18-16-6-1-2-7-17(16)28(26,27)24(18)11-4-3-10-22-12-14-23(15-13-22)19-20-8-5-9-21-19/h1-2,5-9H,3-4,10-15H2
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.
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.
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.

Biological Activity of Ipsapirone

DescriptionSelective 5-HT1A receptor agonist (Ki = 10 nM). Anxiolytic in vivo.

Ipsapirone Dilution Calculator

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Ipsapirone Molarity Calculator

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Preparing Stock Solutions of Ipsapirone

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.4908 mL 12.4539 mL 24.9078 mL 49.8157 mL 62.2696 mL
5 mM 0.4982 mL 2.4908 mL 4.9816 mL 9.9631 mL 12.4539 mL
10 mM 0.2491 mL 1.2454 mL 2.4908 mL 4.9816 mL 6.227 mL
50 mM 0.0498 mL 0.2491 mL 0.4982 mL 0.9963 mL 1.2454 mL
100 mM 0.0249 mL 0.1245 mL 0.2491 mL 0.4982 mL 0.6227 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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References on Ipsapirone

Cortisol responses to ipsapirone challenge correlate with aggression, while basal cortisol levels correlate with impulsivity, in personality disorder and healthy volunteer subjects.[Pubmed:20378126]

J Psychiatr Res. 2010 Oct;44(14):874-80.

BACKGROUND: This study was performed to test the hypothesis that 5-HT-1a receptors, as assessed by the cortisol (post-synaptic) and temperature (pre-synaptic) responses to the 5-HT-1a agonist, Ipsapirone (IPSAP), play a role in the regulation of impulsive aggressive behavior in human subjects. METHODS: Fifty-two healthy subjects (28 with Personality Disorder: PD; 24 Healthy Volunteers: HV) underwent acute challenge with the selective 5-HT-1a agonist, ipsaprione (IPSAP: .3 mg/kg po). Residual Peak Delta Cortisol (DeltaCORT[IPSAP]-R; after removal of Basal CORT and IPSAP plasma levels) was used as the primary 5-HT-1a post-synaptic receptor variable. Residual Nadir Delta Temperature (DeltaTEMP[IPSAP]-R; after removal of Basal TEMP) was used as the primary 5-HT-1a somatodendritic (pre-synaptic) receptor variable. Measures of trait aggression included the Aggression scales of the Buss-Durkee Hostility Inventory (BDHI) and the Life History of Aggression (LHA); trait impulsivity was assessed with the Impulsivity scale of the Eysenck Personality Questionnaire (EPQ-II). RESULTS: Correlations between DeltaCORT[IPSAP]-R responses and BDHI Aggression scores varied by group. Specifically, BDHI Aggression correlated inversely with DeltaCORT[IPSAP]-R values in PD subjects but directly in HV subjects. While EPQ-II Impulsivity did not correlate with DeltaCORT[IPSAP]-R responses, this measure of impulsivity correlated directly with Basal CORT levels in all subjects. DeltaTEMP[IPSAP]-R responses did not correlate with measures of trait aggression or trait impulsivity. CONCLUSION: Physiologic responses of 5-HT-1a post-synaptic receptors may be reduced as a function of trait aggression, but not impulsivity, in PD subjects. In contrast, pre-synaptic 5-HT-1a receptors may not play a role in the regulation of aggression or impulsivity in human subjects.

Effects of ethanol and ipsapirone on the expression of genes encoding anti-apoptotic proteins and an antioxidant enzyme in ethanol-treated neurons.[Pubmed:18992726]

Brain Res. 2009 Jan 16;1249:54-60.

Previously, this laboratory found that apoptosis was augmented significantly in fetal rhombencephalic neurons when they were treated with 50 mM ethanol for 24 h. These changes were associated temporally with a reduction in the phosphatidylinositol 3-kinase (PI3K) pro-survival pathway and in the downstream expression of several NF-kappaB dependent anti-apoptotic genes. The serotonin-1A agonist Ipsapirone prevented ethanol-associated apoptosis; it also activated the PI3K-->pAkt pro-survival pathway and the expression of specific NF-kappaB dependent anti-apoptotic genes in ethanol-treated neurons. The present study investigated the temporal effects of both ethanol and Ipsapirone on the expression of three NF-kappaB dependent genes, XIAP, Bcl-XL and catalase; these genes encode proteins that could potentially attenuate ethanol-induced apoptosis. Catalase activity was also measured. All three genes demonstrated an early activation by ethanol. After a brief treatment with 50 mM ethanol, i.e., 2 to 8 h depending on the gene, the expression of XIAP, Bcl-XL, and catalase was significantly increased, possibly as an initial attempt to survive. An ethanol-associated increase in catalase was followed by a rise in catalase activity. However, when ethanol treatment was continued for a longer time, there was a significant reduction in both XIAP and Bcl-XL. In addition, both catalase expression and activity returned to levels found in unstressed controls. Importantly, treatment with Ipsapirone augmented the activity of catalase and the expression of Bcl-XL, XIAP, and catalase in ethanol-treated neurons at later time points. The latter effects are likely to contribute to the pro-survival effects of Ipsapirone.

Ipsapirone and ketanserin protects against circulatory shock, intracranial hypertension, and cerebral ischemia during heatstroke.[Pubmed:16205318]

Shock. 2005 Oct;24(4):336-40.

We assess the effects of Ipsapirone (a 5-HT1A receptor agonist), ketanserin (a 5-HT2A receptor antagonist), (-)-pindolol (a 5-HT1A receptor antagonist), and DOI (a 5-HT2A receptor agonist) on heatstroke in a rat model. Animals, under urethane anesthesia, were exposed to high ambient temperature of 42 degrees C until mean arterial pressure and local cerebral blood flow in the striatum began to decrease, which was arbitrarily defined as the onset of heatstroke. Normothermic controls were exposed to room temperature of 24 degrees C. In rats treated with normal saline immediately before the initiation of heat stress, the values for survival time were found to be 21 to 25 min. Systemic administration of Ipsapirone (10 mg/kg) or ketanserin (2 mg/kg) immediately before the initiation of heat stress significantly increased the survival time to new values of 92 to 104 min. Combined treatment with Ipsapirone and ketanserin had additive effects (survival time of 156-194 min). In contrast, systemic administration of (-)-pindolol (2 mg/kg) or DOI (2 mg/kg) significantly decreased the survival time to new values of 2 to 3 min. In vehicle-treated heatstroke rats, the values for core temperature, intracranial pressure, and the extracellular levels of cellular ischemia (e.g., glutamate and lactate/pyruvate ratio) or damage (e.g., glycerol) markers and neuronal damage scores in striatum were significantly higher than those of normothermic controls. On the other hand, the values for mean arterial pressure, cerebral perfusion pressure, cerebral blood flow, and brain partial pressure of O2 were significantly lower than those of normothermic controls. The heatstroke-induced hyperthermia, arterial hypotension, intracranial hypertension, cerebral hypoperfusion and hypoxia, and increased levels of cellular ischemia and damage markers in striatum were all significantly attenuated by prior administration of Ipsapirone or ketanserin. The present results strongly suggest that previous activation of 5-HT1A receptors or antagonism of 5-HT2A receptors protects against heatstroke by reducing circulatory shock and cerebral ischemia, whereas prior antagonism of 5-HT1A receptors or activation of 5-HT2A receptors exacerbates heatstroke.

The effects of ethanol and the serotonin(1A) agonist ipsapirone on the expression of the serotonin(1A) receptor and several antiapoptotic proteins in fetal rhombencephalic neurons.[Pubmed:16687129]

Brain Res. 2006 May 30;1092(1):79-86.

Previously, this laboratory demonstrated that ethanol reduces the number of developing serotonin (5-HT)-containing neurons by increasing apoptosis. We also found that 5-HT(1A) agonists attenuate the proapoptotic effects of ethanol and the ethanol-mediated reduction of fetal 5-HT neurons. These neuroprotective effects are mediated in part by the ability of 5-HT(1A) agonists to activate the phosphatidyl 3'-kinase (PI-3K) prosurvival pathway. NF-kappaB is one of the downstream effectors activated by this pathway. In the present study, we used quantitative real-time reverse transcriptase-polymerase chain reaction (RT-PCR) to determine the effects of 50mM ethanol and 100nM of Ipsapirone, a 5-HT(1A) agonist, on the expression of several NF-kappaB-dependent antiapoptotic genes: X-linked inhibitor of apoptosis protein (XIAP), cIAP1, cIAP2, Bcl-2, and Bcl-xl. We also investigated the effects of ethanol and Ipsapirone on the expression of the gene encoding the 5-HT(1A) receptor. The results demonstrate that ethanol reduces the expression of several prosurvival genes: XIAP, cIAP1, cIAP2, Bcl-2, and Bcl-xl. Importantly, the ethanol-mediated reduction in the expression of XIAP and Bcl-xl was prevented by co-treatment with Ipsapirone. Thus, the damaging effects of ethanol are likely to involve a reduction in several prosurvival proteins. Moreover, the protective effects of Ipsapirone on ethanol-treated neurons might involve their ability to prevent the reduction of XIAP and Bcl-xl. Although Ipsapirone treatment decreased the expression of cIAP1, Bcl-2, and Bcl-xl in control neurons, our prior studies suggest that their survival is not reduced by Ipsapirone. We also observed an increased expression of the 5-HT(1A) receptor in Ipsapirone-treated control neurons.

Central action of ipsapirone, a new anxiolytic drug, on serotoninergic, noradrenergic and dopaminergic functions.[Pubmed:2889795]

J Neural Transm. 1987;70(1-2):1-17.

Ipsapirone (TVX Q 7821, 2-(4-(4-(2-pyrimidinyl)-1-piperazinyl)butyl)-1,2-benzisothiazol-3- (2H)one-1, 1-dioxidehydrochloride), a new anxiolytic drug in respect of the evaluation of its effect on central 5-hydroxytryptamine (5-HT), noradrenaline and dopamine functions was studied. It was found that Ipsapirone inhibits induced by 8-OH-DPAT and 5-methoxydimethyltryptamine (agonists of 5-HT1A receptors) behavioural effects (flat body posture and forepaw treading) in normal and reserpinized rats. Ipsapirone partly inhibited in rats but not in mice the 8-OH-DPAT-induced hypothermia. Ipsapirone, administered at high doses, decreased the body temperature in rats and mice, inhibited the 5-hydroxytryptophan-induced head twitches in mice and the tryptamine-induced convulsions and tremor in rats. In the hind limb flexor reflex preparation of the spinal rat only high doses of the drug inhibited stimulation induced by quipazine, m-chlorphenylpiperazine, 8-OH-DPAT and St 587 (an agonist of alpha 1-adrenoceptors). Ipsapirone did not block the fenfluramine- and m-chlorphenylpiperazine-induced hyperthermia in rats at an ambient temperature of 28 degrees C. The drug did not affect clonidine-induced sedation and inconsiderably attenuated clonidine-induced hypothermia in mice. It attenuated the d-amphetamine-induced locomotor hyperactivity in mice and rats but, given alone, decreased the locomotor activity. The obtained results indicate that Ipsapirone exhibits 5-HT1A antagonistic effect, and only at high doses it can also produce an inhibitory effect on 5-HT2 and the alpha 1-adrenergic function.

Brain serotonin receptors as a target for the putative anxiolytic TVX Q 7821.[Pubmed:6541079]

Brain Res Bull. 1984 Jun;12(6):741-4.

In animal behavioral tests of anxiolytic efficacy, TVX Q 7821 was active and equipotent with diazepam, but did not produce muscle relaxation or anti-convulsant effects. The high affinity, specific binding of 3H-TVX Q 7821 to calf hippocampal membranes was displaced by serotonin (5-HT) but not by diazepam. Similarly, unlabeled TVX Q 7821 displaced 3H-5-HT but not 3H-flunitrazepam binding. Since ketanserin (a putative 5-HT2 ligand) was equally weak in displacing labeled 5-HT or TVX Q 7821, TVX Q 7821 may preferentially bind to 5-HT1, receptors.

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