CP 99994 dihydrochlorideHigh affinity NK1 antagonist CAS# 145148-39-6 |
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Quality Control & MSDS
Number of papers citing our products
Chemical structure
3D structure
Cas No. | 145148-39-6 | SDF | Download SDF |
PubChem ID | 73013943 | Appearance | Powder |
Formula | C19H26Cl2N2O | M.Wt | 369.33 |
Type of Compound | N/A | Storage | Desiccate at -20°C |
Solubility | Soluble to 100 mM in water and to 50 mM in DMSO | ||
Chemical Name | (2S,3S)-1-[(2-methoxyphenyl)methyl]-2-phenylpiperidin-3-amine;dihydrochloride | ||
SMILES | COC1=CC=CC=C1CN2CCCC(C2C3=CC=CC=C3)N.Cl.Cl | ||
Standard InChIKey | STUCSMJJXNCIOE-FFUVTKDNSA-N | ||
Standard InChI | InChI=1S/C19H24N2O.2ClH/c1-22-18-12-6-5-10-16(18)14-21-13-7-11-17(20)19(21)15-8-3-2-4-9-15;;/h2-6,8-10,12,17,19H,7,11,13-14,20H2,1H3;2*1H/t17-,19-;;/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. |
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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 | High affinity NK1 antagonist (Ki = 0.145 nM in vitro). Also displays high ex vivo binding potency in gerbil striatum (IC50 = 36.8 nM). Attenuates endothelium-dependent contraction induced by substance P. |
CP 99994 dihydrochloride Dilution Calculator
CP 99994 dihydrochloride Molarity Calculator
1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
1 mM | 2.7076 mL | 13.538 mL | 27.0761 mL | 54.1521 mL | 67.6901 mL |
5 mM | 0.5415 mL | 2.7076 mL | 5.4152 mL | 10.8304 mL | 13.538 mL |
10 mM | 0.2708 mL | 1.3538 mL | 2.7076 mL | 5.4152 mL | 6.769 mL |
50 mM | 0.0542 mL | 0.2708 mL | 0.5415 mL | 1.083 mL | 1.3538 mL |
100 mM | 0.0271 mL | 0.1354 mL | 0.2708 mL | 0.5415 mL | 0.6769 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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Neurokinin 1 receptor antagonists: correlation between in vitro receptor interaction and in vivo efficacy.[Pubmed:17575073]
J Pharmacol Exp Ther. 2007 Sep;322(3):1286-93.
We compared the neurokinin 1 receptor (NK(1)R) antagonists aprepitant, CP-99994 [(2S,3S)-3-(2-methoxybenzylamino)-2-phenylpiperidine], and ZD6021 [3-cyano-N-((2S)-2-(3,4-dichlorophenyl)-4-[4-[2-(methyl-(S)-sulfinyl)phenyl]piper idino]butyl)-N-methyl]napthamide]] with respect to receptor interactions and duration of efficacy in vivo. In Ca(2+) mobilization assays (fluorometric imaging plate reader), antagonists were applied to human U373MG cells simultaneously with or 2.5 min before substance P (SP). In reversibility studies, antagonists were present for 30 min before washing, and responses to SP were repeatedly measured afterward. The compounds were administered i.p. to gerbils, and the gerbil foot tap (GFT) response was monitored at various time points. The NK(1)R receptor occupancy for aprepitant was determined in striatal regions. Levels of compound in brain and plasma were measured. Antagonists were equipotent at human NK(1)R and acted competitively with SP. After preincubation, aprepitant and ZD6021 attenuated the maximal responses, whereas CP-99994 only shifted the SP concentration-response curve to the right. The inhibitory effect of CP-99994 was over within 30 min, whereas for ZD6021, 50% inhibition still persisted after 60 min. Aprepitant produced maximal inhibition lasting at least 60 min. CP-99994 (3 micromol/kg) inhibited GFT by 100% 15 min after administration, but the effect declined rapidly together with brain levels thereafter. The efficacy of ZD6021 (10 micromol/kg) lasted 4 h and correlated well with brain levels. Aprepitant (3 micromol/kg) inhibited GFT and occupied striatal NK(1)R by 100% for >48 h despite that brain levels of compound were below the limit of detection after 24 h. Slow functional reversibility is associated with long-lasting in vivo efficacy of NK(1)R antagonists, whereas the efficacy of compounds with rapid reversibility is reflected by their pharmacokinetics.
Correlation of neurokinin (NK) 1 receptor occupancy in gerbil striatum with behavioral effects of NK1 antagonists.[Pubmed:11961054]
J Pharmacol Exp Ther. 2002 May;301(2):536-42.
Interest in central neurokinin (NK) 1 receptors has increased based on reports of the therapeutic potential for NK1 antagonists in anxiety and depression. In these studies, an ex vivo binding procedure was used to correlate NK1 receptor occupancy in striatum by NK1 antagonists with their potency to inhibit NK1 agonist-induced foot tapping in gerbils (GFT). The following compounds were administered orally: CP-99,994 [(+)-cis-n-[(2-methoxyphenyl)methyl]-2-phenyl-3-piperidinamine), L-742,694 [5-[[2(S)-[[3,5-bis(trifluoromethyl)phenyl]methoxy]-3(S)-phenyl-4-morpholinyl]met hyl]-2,4-dihydro-3H-1,2,4-triazol-3-one]), MK-869 [5-[[2(R)-[1(R)-[3,5-bis(trifluoromethyl)phenyl]ethoxy]-3(S)-(4-fluorophenyl)-4-m orpholinyl]methyl]-2,4-dihydro-3H-1,2,4-triazol-3-one], CP-122,721 [cis-n-[[2-methoxy-5-(trifluoromethoxy)phenyl]methyl]-2-phenyl-3-piperidinamine], L-760,735-F [4-[[2(R)-[1(R)-[3,5-bis(trifluoromethyl)phenyl]ethoxy]-3(S)-(4-fluorophenyl)-4-m orpholinyl]methyl]-N,N-dimethyl-1H-1,2,3-triazole-5- methanamine], GR205171 [N-[[2-methoxy-5-[5-(trifluoromethyl)-1H-tetrazol-1-yl]phenyl]methy]-2(S)-phenyl- 3(S)-piperidinamine], L-733,060 [(2S,3S)3-([3,5-bis(trifluoro methyl)phenyl]methoxy)-2-phenylpiperidine], and L-733,061 [(2R,3R)-3-([3,5-bis(trifluoromethyl)phenyl]methoxy)-2-phenylpiperidine]. Two hours later, gerbils received the NK1 agonist GR73632 [H(2)N-(CH(2))(4)-CO-Phe-Pro-NMe-Leu-Met-NH(2)] i.c.v. and foot tapping was measured for 5 min. The same procedure was used for ex vivo binding studies except that saline, rather than agonist, was administered i.c.v. before dissection of the striatum. The tissue homogenate was then used in an equilibrium radioligand binding assay. When IC(50) values for inhibition of ex vivo (125)I-substance P binding by NK1 antagonists were compared with the corresponding EC(50) values for inhibition of GFT, a significant positive correlation was observed (r(2) = 0.97, p < 0.001). This result indicates that increased NK1 receptor occupancy in striatum by NK1 antagonists parallels the inhibition of agonist-mediated GFT. For all compounds, the dose that produced the maximum inhibition of GFT resulted in less than 100% ex vivo receptor occupancy in striatum. When gerbils did not receive the i.c.v. saline injection before ex vivo binding, thereby leaving the blood-brain barrier (BBB) intact, the IC(50) values for antagonists were unchanged, suggesting that potential damage to the BBB caused by the i.c.v. injection did not affect determinations of antagonist potency in the GFT model.
Endothelium-dependent contraction in intrapulmonary arteries: mediation by endothelial NK1 receptors and TXA2.[Pubmed:7582548]
Br J Pharmacol. 1995 Aug;115(7):1215-20.
1. We have examined whether three natural tachykinins, substance P (SP), neurokinin A (NKA) and neurokinin B (NKB) induce an endothelium-dependent contraction (EDC) in the rabbit isolated intrapulmonary artery. 2. Removal of the endothelium almost abolished the contraction induced by SP (10(-8) M) while it did not attenuate the contraction induced by SP (10(-7) M), NKA (10(-9) - 10(-7) M) or NKB (10(-8) and 10(-7) M). 3. The EDC induced by SP (10(-8) M) was abolished by NK1 antagonists (FK-888, CP-96345, CP-99994 and SR-140333) but not by an NK2 antagonist (SR-48968). 4. The EDC induced by SP was attenuated by cyclo-oxygenase inhibitors (aspirin and indomethacin), thromboxane A2 (TXA2) synthetase inhibitors (OKY-046, KY-234 and KY-063) and a TXA2 antagonist (S-1452). 5. The rank order of potency causing endothelium-independent contraction (EIC) was NKA > NKB > SP. The EIC induced by SP (10(-7) M) was attenuated by an NK2 antagonist but not by NK1 antagonists, cyclo-oxygenase inhibitors, TXA2 synthetase inhibitors or a TXA2 antagonist. 6. In conclusion, SP at 10(-8) M induces EDC via endothelial NK1 receptors and TXA2 production, and SP at 10(-7) M induces EIC via NK2 receptors in the rabbit intrapulmonary artery.