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AH 11110 hydrochloride

α1B-AR ligand,subtype-selective CAS# 179388-65-9

AH 11110 hydrochloride

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AH 11110 hydrochloride

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Chemical Properties of AH 11110 hydrochloride

Cas No. 179388-65-9 SDF Download SDF
PubChem ID 9907616 Appearance Powder
Formula C21H27ClN2O2 M.Wt 374.91
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble to 25 mM in water
Chemical Name 4-imino-1-(2-phenylphenoxy)-4-piperidin-1-ylbutan-2-ol;hydrochloride
SMILES C1CCN(CC1)C(=N)CC(COC2=CC=CC=C2C3=CC=CC=C3)O.Cl
Standard InChIKey WWHGFIXWBLHHQB-UHFFFAOYSA-N
Standard InChI InChI=1S/C21H26N2O2.ClH/c22-21(23-13-7-2-8-14-23)15-18(24)16-25-20-12-6-5-11-19(20)17-9-3-1-4-10-17;/h1,3-6,9-12,18,22,24H,2,7-8,13-16H2;1H
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 AH 11110 hydrochloride

DescriptionA subtype-selective ligand for the α1B-adrenoceptor. The pKi values for binding to rat fibroblast cell membranes expressing α1B (hamster), α1A (bovine) and α1D (rat) are 7.1, 5.59, and 5.68 respectively. Appears to be non-selective between α1 subtypes and α2 receptors in smooth muscle preparations.

AH 11110 hydrochloride Dilution Calculator

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AH 11110 hydrochloride Molarity Calculator

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Preparing Stock Solutions of AH 11110 hydrochloride

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.6673 mL 13.3365 mL 26.6731 mL 53.3461 mL 66.6827 mL
5 mM 0.5335 mL 2.6673 mL 5.3346 mL 10.6692 mL 13.3365 mL
10 mM 0.2667 mL 1.3337 mL 2.6673 mL 5.3346 mL 6.6683 mL
50 mM 0.0533 mL 0.2667 mL 0.5335 mL 1.0669 mL 1.3337 mL
100 mM 0.0267 mL 0.1334 mL 0.2667 mL 0.5335 mL 0.6668 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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Background on AH 11110 hydrochloride

AH 11110 hydrochloride is a selective antagonist of α1B-adrenoceptor [1].

α1B-adrenoceptor (α1B-AR) belongs to α1- adrenergic receptors, which include three subtypes α1A, α1B and α1D and play an important role in regulating cell growth and proliferation.

AH 11110 hydrochloride is a selective α1B-AR antagonist. AH11110A inhibited cloned α1B-AR with Ki value of 79.4 nM and exhibited 32- and 26-fold selectivity over α1A- and α1D-ARs, respectively [1]. In rat vas deferens and rat perfused kidney, AH11110A exhibited affinities for α1A-AR, α1B-AR and α1D-AR with pA2 values of 6.41, 5.40-6.54 and 5.47-5.48, respectively. Also, AH11110A displayed affinity for α2-adrenoceptor in rabbit vas deferens with pA2 value of 5.44. In ligand binding studies, AH11110A exhibited affinities for native and cloned α1B-AR with pKi of 7.10-7.73. AH11110A increased contraction of rat vas deferens [2]. In isolated spleen strips from guinea-pig, AH11110A competitively antagonized tissue contraction induced by noradrenaline in a concentration-dependent way [2].

References:
[1].  Erami C, Zhang H, Ho JG, et al. Alpha(1)-adrenoceptor stimulation directly induces growth of vascular wall in vivo. Am J Physiol Heart Circ Physiol, 2002, 283(4): H1577-1587.
[2].  Eltze M, König H, Ullrich B, et al. Failure of AH11110A to functionally discriminate between alpha(1)-adrenoceptor subtypes A, B and D or between alpha(1)- and alpha(2)-adrenoceptors. Eur J Pharmacol, 2001, 415(2-3): 265-276.

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References on AH 11110 hydrochloride

Competitive and allosteric interactions of 6-chloro-5,10-dihydro-5-[(1-methyl-4-piperidinyl)acetyl]-11H-di benzo[b,e][1, 4]diazepine-11-one hydrochloride (UH-AH 37) at muscarinic receptors, via distinct epitopes.[Pubmed:9890566]

Biochem Pharmacol. 1999 Jan 15;57(2):181-6.

6-Chloro-5,10-dihydro-5-[( 1-methyl-4-piperidinyl)acetyl]-11H-dibenzo[b,e][1,4]diazepine-11one++ + hydrochloride (UH-AH 37) is an analog of pirenzepine that has previously been reported to interact with classical muscarinic antagonists in a competitive manner, yet its binding has also been found to be sensitive to the same epitope as is that of the allosteric ligand gallamine. The present study was carried out with wild-type and chimeric muscarinic receptors to determine whether UH-AH 37 might also have an allosteric mode of action. In assays that detect only allosteric interactions, UH-AH 37 slowed the rate of dissociation of [3H]N-methylscopolamine (NMS) from all five muscarinic receptor subtypes, with the highest apparent affinity at m2. By contrast, studies carried out under equilibrium conditions have found UH-AH 37 to have the lowest affinity for the m2 subtype. Studies with m2/m5 chimeric receptors found the allosteric potency of UH-AH 37 to be sensitive to an epitope in the seventh transmembrane domain (TM). Again, this contrasts with equilibrium studies, wherein an epitope in the sixth TM has been implicated. Simultaneous analysis of the interactions between UH-AH 37 and [3H]NMS at the m2 receptor under equilibrium and non-equilibrium conditions found that a simple allosteric model could not accommodate both sets of data. On the other hand, the model did accommodate such data for gallamine; gallamine also displays concordance in order-of-potency and epitope sensitivity between equilibrium and non-equilibrium assays. Based on these results, we conclude that UH-AH 37 interacts at the classical muscarinic binding site with high affinity and at a second (allosteric) site with lower affinity.

Failure of AH11110A to functionally discriminate between alpha(1)-adrenoceptor subtypes A, B and D or between alpha(1)- and alpha(2)-adrenoceptors.[Pubmed:11275009]

Eur J Pharmacol. 2001 Mar;415(2-3):265-76.

The potency of the putatively alpha(1B)-adrenoceptor selective drug, 1-[biphenyl-2-yloxy]-4-imino-4-piperidin-1-yl-butan-2-ol (AH11110A), to antagonize contraction upon stimulation of alpha(1A)-adrenoceptors in rat vas deferens and rat perfused kidney, alpha(1B)-adrenoceptors in guinea-pig spleen, mouse spleen and rabbit aorta, and alpha(1D)-adrenoceptors in rat aorta and pulmonary artery was evaluated and compared to that of a number of subtype-discriminating antagonists. N-[3-[4-(2-Methoxyphenyl)-1-piperazinyl]propyl]-3-methyl-4-oxo-2-phenyl-4H-1-benz opyran-8-carboxamide (Rec 15/2739) and (+/-)-1,3,5-trimethyl-6-[[3-[4-((2,3-dihydro-2-hydroxymethyl)-1,4-benzodioxin-5-y l)-1-piperazinyl]propyl]amino]-2,4(1H,3H)-pyrimidinedione (B8805-033) were confirmed as selective for alpha(1A)-adrenoceptors, 8-[2-[4-(2-methoxyphenyl)-1-piperazinyl]ethyl]-8-azaspiro[4.5]decane-7,9-dione (BMY 7378), 8-[2-(1,4-benzodioxan-2-ylmethylamino)ethyl]-8-azaspiro[4.5]decane-7,9-dione (MDL 73005EF), and cystazosin were found to be selective for alpha(1D)-adrenoceptors, whereas spiperone was weakly selective for alpha(1B)-over alpha(1A)-adrenoceptors. However, from the functional affinity profile obtained for AH11110A at alpha(1A)-adrenoceptors (pA(2)=6.41 in rat vas deferens), alpha(1B)-adrenoceptors (pA(2)=5.40-6.54) and alpha(1D)-adrenoceptors (pA(2)=5.47-5.48), the affinity and presumed selectivity previously obtained for AH11110A in radioligand binding studies at native alpha(1B)- and cloned alpha(1b)-adrenoceptors (pK(i)=7.10-7.73) could not be confirmed. Additionally, AH11110A enhanced the general contractility of rat vas deferens, produced a bell-shaped dose-response curve of vasodilation in perfused rat kidney, and its antagonism in most other tissues was not simply competitive. The affinity of AH11110A for prejunctional alpha(2)-adrenoceptors in rabbit vas deferens (pA(2)=5.44) was not much lower than that displayed for alpha(1)-adrenoceptor subtypes, revealing that AH11110A, besides alpha(1)-adrenoceptors, also interacts with alpha(2)-adrenoceptors, and thus may be unsuitable for alpha-adrenoceptor subtype characterization, at least in smooth muscle containing functional studies.

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