CP 96345

Potent and selective NK1 antagonist CAS# 132746-60-2

CP 96345

Catalog No. BCC7509----Order now to get a substantial discount!

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Quality Control of CP 96345

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Chemical structure

CP 96345

3D structure

Chemical Properties of CP 96345

Cas No. 132746-60-2 SDF Download SDF
PubChem ID 104943 Appearance Powder
Formula C28H32N2O M.Wt 412.57
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble to 20 mM in DMSO with gentle warming
Chemical Name (2S,3S)-2-benzhydryl-N-[(2-methoxyphenyl)methyl]-1-azabicyclo[2.2.2]octan-3-amine
SMILES COC1=CC=CC=C1CNC2C3CCN(C2C(C4=CC=CC=C4)C5=CC=CC=C5)CC3
Standard InChIKey FLNYLINBEZROPL-NSOVKSMOSA-N
Standard InChI InChI=1S/C28H32N2O/c1-31-25-15-9-8-14-24(25)20-29-27-23-16-18-30(19-17-23)28(27)26(21-10-4-2-5-11-21)22-12-6-3-7-13-22/h2-15,23,26-29H,16-20H2,1H3/t27-,28-/m0/s1
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 CP 96345

DescriptionPotent and selective non-peptide NK1 receptor antagonist. Attenuates substance P-induced salivary response and inhibits neurogenic inflammation in vivo.

CP 96345 Dilution Calculator

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CP 96345 Molarity Calculator

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Preparing Stock Solutions of CP 96345

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.4238 mL 12.1192 mL 24.2383 mL 48.4766 mL 60.5958 mL
5 mM 0.4848 mL 2.4238 mL 4.8477 mL 9.6953 mL 12.1192 mL
10 mM 0.2424 mL 1.2119 mL 2.4238 mL 4.8477 mL 6.0596 mL
50 mM 0.0485 mL 0.2424 mL 0.4848 mL 0.9695 mL 1.2119 mL
100 mM 0.0242 mL 0.1212 mL 0.2424 mL 0.4848 mL 0.606 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 CP 96345

Effect of CP-96,345 on the expression of adhesion molecules in acute pancreatitis in mice.[Pubmed:17218475]

Am J Physiol Gastrointest Liver Physiol. 2007 May;292(5):G1283-92.

We investigated the effect of a specific neurokinin-1 receptor (NK1R) antagonist, CP-96,345, on the regulation of the expression of adhesion molecules ICAM-1, VCAM-1, E-selectin, and P-selectin as well as leukocyte recruitment during acute pancreatitis (AP). AP was induced in male Balb/C mice by 10 consecutive hourly intraperitoneal injections of caerulein. In the treatment groups, CP-96,345 was administered at 2.5 mg/kg ip either 30 min before or 1 h after the first caerulein injection. Animals were killed, and the lungs and pancreas were isolated for RNA extraction and RT-PCR or for immunohistochemical staining. mRNA expression of the four adhesion molecules was upregulated in the pancreas during AP. Treatment with CP-96,345 effectively reduced the mRNA expression of P-selectin and E-selectin but not ICAM-1 and VCAM-1. In the lung, ICAM-1, E-selectin, and P-selectin mRNA expression increased during AP. Antagonist treatment suppressed this elevation. Similar expression patterns were seen in the immunohistochemical stainings. Intravital microscopy of the pancreatic microcirculation revealed the effect of CP-96,345 on leukocyte recruitment. The present study provides important information on the relationship between NK1R activation and the regulation of adhesion molecules. Also, this study points to the differential regulation of inflammation in the pancreas and lung with AP.

Neurokinin-1 receptor antagonists CP-96,345 and L-733,060 protect mice from cytokine-mediated liver injury.[Pubmed:12649350]

J Pharmacol Exp Ther. 2003 Apr;305(1):31-9.

Previously, we have shown that primary afferent sensory neurons are necessary for disease activity in T cell-mediated immune hepatitis in mice. In the present study, we analyzed the possible role of substance P (SP), an important proinflammatory neuropeptide of these nerve fibers, in an in vivo mouse model of liver inflammation. Liver injury was induced by bacterial lipopolysaccharide (LPS) in D-galactosamine (GalN)-sensitized mice. Depletion of primary afferent nerve fibers by neonatal capsaicin treatment down-regulated circulating levels of the proinflammatory cytokines tumor necrosis factor-alpha (TNFalpha) and interferon-gamma (IFNgamma) and protected mice from GalN/LPS-induced liver injury. Likewise, pretreatment of mice with antagonists of the SP-specific neurokinin-1 receptor (NK-1R), i.e., (2S,3S)-cis-2-(diphenylmethyl)-N-((2-methoxyphenyl)-methyl)-1-azabicyclo(2.2.2.)- octan-3-amine (CP-96,345) and (2S,3S)3-([3,5-bis(trifluoromethyl)phenyl]methoxy)-2-phenylpiperidine (L-733,060), dose dependently protected mice from GalN/LPS-induced liver injury. The presence of the NK-1R in the murine liver was demonstrated by reverse transcription-polymerase chain reaction, sequence analysis, and immunocytochemistry. NK-1R blockade reduced inflammatory liver damage, i.e., edema formation, neutrophil infiltration, hepatocyte apoptosis, and necrosis. To get further insight into the mechanism by which receptor blockade attenuated GalN/LPS-induced liver damage, we analyzed plasma levels and intrahepatic expression of TNFalpha, IFNgamma, interleukin (IL)-6, and IL-10. NK-1R blockade clearly inhibited GalN/LPS-induced production of TNFalpha and IFNgamma, whereas synthesis of the hepatoprotective cytokines IL-6 and IL-10 was increased. NK-1 receptor antagonists might be potent drugs for treatment of inflammatory liver disease, most likely by inhibiting SP effects.

Tritiation of nonpeptide substance P antagonist CP-96,345 and its azido analogue. Synthetic and characterization details.[Pubmed:14622931]

Appl Radiat Isot. 2003 Nov-Dec;59(5-6):333-5.

CP-96,345 (1) was the first nonpeptide antagonist discovered for the SP receptor and [3H] CP-96,345 was required to study the mechanism of receptor action. The radioligand was prepared at high specific activity by catalytic dehalogenation of a dibrominated precursor and this same approach was also used to prepare a photoaffinity analogue.

Substance P antagonist CP-96345 blocks lung vascular leakage and inflammation more effectively than its stereoisomer CP-96344 in a mouse model of smoke inhalation and burn injury.[Pubmed:20201741]

Toxicol Mech Methods. 2010 May;20(4):197-203.

The recently developed murine model of smoke inhalation and burn (SB) injury was used to study the effect of the substance-P antagonist CP96345. C57BL/6 mice were pre-treated with an i.v. dose of a specific NK-1 receptor antagonist, CP9635, or its inactive enantiomer, CP96344, (10 mg/Kg) 1 h prior to SB injury per protocol (n = 5). Mice were anesthetized and exposed to cooled cotton smoke, 2X 30 s, followed by a 40% total body surface area flame burn per protocol. At 48 h after SB injury Evans Blue (EB) dye and myeloperoxidase (MPO) were measured in lung after vascular perfusion. Lungs were also analyzed for hemoglobin (Hb) and wet/dry weight ratio. In the current study, CP96345 pre-treatment caused a significant decrease in wet/dry weight ratio (23%, p = 0.048), EB (31%, p = 0.047), Hb (46%, p = 0.002), and MPO (54%, p = 0.037) levels following SB injury compared to animals with SB injury alone. CP-96344 pre-treatment caused an insignificant decrease in wet/dry weight ratio (14%, p = 0.18), EB (16%, p = 0.134), Hb (9%, p = 0.39), and an insignificant increase in MPO (4%, p = 0.79) as compared to mice that received SB injury alone. As expected, levels of EB, Hb, MPO, and wet/dry weight ratios were all significantly (p < 0.05) increased 48 h following SB injury alone compared to respective sham animals. In conclusion, the current study indicates that pre-treatment with a specific NK-1R antagonist CP-96345 attenuates the lung injury and inflammation induced by SB injury in mice.

The non-peptide tachykinin antagonist, CP-96,345, is a potent inhibitor of neurogenic inflammation.[Pubmed:1378337]

Br J Pharmacol. 1992 Mar;105(3):527-30.

1. Release of the tachykinin, substance P, from the peripheral terminals of polymodal afferent C-fibres is thought to be largely responsible for the vasodilatation and plasma protein extravasation described as neurogenic inflammation. The effects of CP-96,345, a non-peptide antagonist at the substance P (NK1) receptor, on these vascular reactions were investigated in the rat. 2. Intravenously (i.v.) injected CP-96,345 (0.4-3.0 mumol kg-1) prevented the drop in blood pressure, a measure of the peripheral vasodilatation, evoked by substance P and neurokinin A in a dose- and time-dependent manner, but did not affect that elicited by the non-tachykinin peptides calcitonin gene-related peptide and vasoactive intestinal polypeptide. 3. Plasma protein extravasation evoked by i.a. infusion of substance P, antidromic stimulation of the saphenous or the vagus nerve, and stimulation of cutaneous afferent nerves with mustard oil, were each significantly inhibited by CP-96,345 (3.0-9.0 mumol kg-1, i.v.). Furthermore, CP-96,345 was orally active in blocking mustard oil-induced plasma extravasation with an ED50 of 10 mumol kg-1. 4. The inhibition of substance P-induced vasodilatation and of neurogenic plasma extravasation by CP-96,345 was stereospecific as the inactive isomer CP-96,344 (2R, 3R enantiomer of CP-96,345) had no effect. 5. Thus CP-96,345 is a specific, highly potent, long-acting and orally active inhibitor of tachykinin-mediated neurogenic inflammation.

A potent nonpeptide antagonist of the substance P (NK1) receptor.[Pubmed:1703323]

Science. 1991 Jan 25;251(4992):435-7.

CP-96,345 [(2S, 3S)-cis-2-(diphenylmethyl)-N-[(2-methoxyphenyl)- methyl]-1-azabicyclo[2.2.2]octan-3-amine] is a potent nonpeptide antagonist of the substance P (NK1) receptor. CP-96,345 inhibited 3H-labeled substance P binding and was a classical competitive antagonist in the NK1 monoreceptor dog carotid artery preparation. CP-96,345 inhibited substance P-induced salivation in the rat, a classical in vivo bioassay, but did not inhibit NK2, NK3, or numerous other receptors; it is thus a selective NK1 antagonist. This compound may prove to be a powerful tool for investigation of the physiological properties of substance P and exploration of its role in diseases.

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