Size | Price | |
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500mg | ||
1g | ||
Other Sizes |
Targets |
kappa-opioid receptor/KOR( Kd = 2.2 nM); μ-opioid receptor/MOR (Kd = 430 nM)
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ln Vitro |
(+)-U-50488 (hydrochloride) (+)-Trans-(1R,2R)-U-50488 hydrochloride) is the (-)-Trans-(1S,2S)-U-50488[1] enantiomer.
The enantiomers of U50,488, ligands highly selective for kappa-opioid receptors, have been prepared by a refined procedure and their optical purity demonstrated. The absolute configuration of (+)-trans-2-pyrrolidinyl-N-methylcyclohexylamine, a chemically versatile intermediate for synthesis of analogs of kappa-opioid receptor ligands with defined chirality, has been determined to be 1S,2S by X-ray crystallographic analysis. This intermediate has been used to synthesize the optically pure U50,488 enantiomers with known absolute configuration[2]. |
References | |
Additional Infomation |
Purpose: A detailed review on the chemistry and pharmacology of non-fentanil novel synthetic opioid receptor agonists, particularly N-substituted benzamides and acetamides (known colloquially as U-drugs) and 4-aminocyclohexanols, developed at the Upjohn Company in the 1970s and 1980s is presented.
Method: Peer-reviewed literature, patents, professional literature, data from international early warning systems and drug user fora discussion threads have been used to track their emergence as substances of abuse.
Results: In terms of impact on drug markets, prevalence and harm, the most significant compound of this class to date has been U-47700 (trans-3,4-dichloro-N-[2-(dimethylamino)cyclohexyl]-N-methylbenzamide), reported by users to give short-lasting euphoric effects and a desire to re-dose. Since U-47700 was internationally controlled in 2017, a range of related compounds with similar chemical structures, adapted from the original patented compounds, have appeared on the illicit drugs market. Interest in a structurally unrelated opioid developed by the Upjohn Company and now known as BDPC/bromadol appears to be increasing and should be closely monitored.
Conclusions: International early warning systems are an essential part of tracking emerging psychoactive substances and allow responsive action to be taken to facilitate the gathering of relevant data for detailed risk assessments. Pre-emptive research on the most likely compounds to emerge next, so providing drug metabolism and pharmacokinetic data to ensure that new substances are detected early in toxicological samples is recommended. As these compounds are chiral compounds and stereochemistry has a large effect on their potency, it is recommended that detection methods consider the determination of configuration. [1]
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Molecular Formula |
C19H26CL2N2O
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Molecular Weight |
369.33
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Exact Mass |
404.119
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CAS # |
67198-17-8
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Related CAS # |
(1R,2R)-U-50488 hydrochloride;109620-49-7;(-)-U-50488 hydrochloride;114528-79-9;(±)-U-50488 hydrochloride;67197-96-0;(±)-U-50488 hydrate hydrochloride;(+)-U-50488 hydrochloride;114528-81-3
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PubChem CID |
19872097
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Appearance |
Typically exists as solid at room temperature
|
LogP |
5.141
|
Hydrogen Bond Donor Count |
1
|
Hydrogen Bond Acceptor Count |
2
|
Rotatable Bond Count |
4
|
Heavy Atom Count |
25
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Complexity |
428
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Defined Atom Stereocenter Count |
0
|
SMILES |
CN(C1CCCCC1N2CCCC2)C(=O)CC3=CC(=C(C=C3)Cl)Cl.Cl
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InChi Key |
KGMMGVIYOHGOKQ-UHFFFAOYSA-N
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InChi Code |
InChI=1S/C19H26Cl2N2O.ClH/c1-22(19(24)13-14-8-9-15(20)16(21)12-14)17-6-2-3-7-18(17)23-10-4-5-11-23;/h8-9,12,17-18H,2-7,10-11,13H2,1H3;1H
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Chemical Name |
2-(3,4-dichlorophenyl)-N-methyl-N-(2-pyrrolidin-1-ylcyclohexyl)acetamide;hydrochloride
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Synonyms |
67198-17-8; (+/-)-U-50488 hydrochloride; (+)-U-50488Hydrochloride; 2-(3,4-dichlorophenyl)-N-methyl-N-(2-pyrrolidin-1-ylcyclohexyl)acetamide;hydrochloride; 67198-19-0; SCHEMBL7115845; 3,4-dichloro-N-methyl-N-[2-(1-pyrrolidinyl)cyclo-hexyl] benzeneacetamide hydrochloride
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HS Tariff Code |
2934.99.9001
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Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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Solubility (In Vitro) |
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
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Solubility (In Vivo) |
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.
Injection Formulations
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline)(e.g. IP/IV/IM/SC) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 :Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). View More
Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). View More
Oral Formulation 3: Dissolved in PEG400  (Please use freshly prepared in vivo formulations for optimal results.) |
Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
1 mM | 2.7076 mL | 13.5380 mL | 27.0761 mL | |
5 mM | 0.5415 mL | 2.7076 mL | 5.4152 mL | |
10 mM | 0.2708 mL | 1.3538 mL | 2.7076 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration: mg/mL;
Method for preparing DMSO stock solution: mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation::Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.