2-CMDO

D2-like antagonist. Displays some D4 selectivity CAS# 24140-98-5

2-CMDO

2D Structure

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2-CMDO

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Chemical Properties of 2-CMDO

Cas No. 24140-98-5 SDF Download SDF
PubChem ID 71296946 Appearance Powder
Formula C23H23ClN2O5 M.Wt 442.9
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble to 100 mM in DMSO
Chemical Name 2-Chloro-11-(4-methylpiperazino)dibenz(Z)[b,f]oxepin maleate
SMILES CN1CCN(CC1)C2=CC3=CC=CC=C3OC4=C2C=C(C=C4)Cl.C(=CC(=O)O)C(=O)O
Standard InChIKey OOHVXDUNWCMZCI-BTJKTKAUSA-N
Standard InChI InChI=1S/C19H19ClN2O.C4H4O4/c1-21-8-10-22(11-9-21)17-12-14-4-2-3-5-18(14)23-19-7-6-15(20)13-16(17)19;5-3(6)1-2-4(7)8/h2-7,12-13H,8-11H2,1H3;1-2H,(H,5,6)(H,7,8)/b;2-1-
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 2-CMDO

DescriptionDopamine D2-like receptor antagonist that displays some selectivity for D4 receptors (Ki values are 0.54 and 2.5 nM for D4 and D2 receptors respectively).

2-CMDO Dilution Calculator

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2-CMDO Molarity Calculator

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Preparing Stock Solutions of 2-CMDO

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.2578 mL 11.2892 mL 22.5785 mL 45.1569 mL 56.4462 mL
5 mM 0.4516 mL 2.2578 mL 4.5157 mL 9.0314 mL 11.2892 mL
10 mM 0.2258 mL 1.1289 mL 2.2578 mL 4.5157 mL 5.6446 mL
50 mM 0.0452 mL 0.2258 mL 0.4516 mL 0.9031 mL 1.1289 mL
100 mM 0.0226 mL 0.1129 mL 0.2258 mL 0.4516 mL 0.5645 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 2-CMDO

L-745,870 suppresses the nighttime serotonin N-acetyltransferase activity in chick retina: in vivo evidence for agonist activity at D4-dopamine receptors.[Pubmed:12658371]

J Neural Transm (Vienna). 2003 Mar;110(3):219-27.

This study examined the in vivo activity of L-745,870 at dopamine (DA) D(4) receptors, using the chick retina as a model system. In dark-adapted retinas of various vertebrates, including hen, DA acting via D(4) receptors suppresses melatonin content and activity of serotonin N-acetyltransferase (AA-NAT, a key regulatory enzyme in melatonin synthesis). Systemic administration to chicks of quinpirole (0.1 mg/kg), a high affinity agonist of D(3)/D(4)-DA receptors, potently decreased the nighttime AA-NAT activity of the retina. The quinpirole-evoked decline in the enzyme activity was attenuated by L-745,870 (0.1-10 nmol/eye). In addition to this action, L-745,870 given to chicks either directly into the eye (0.03-10 nmol/eye) or intraperitoneally (0.5-5 mg/kg) decreased the nighttime AA-NAT activity of the retina in a dose-dependent manner. The suppressive effect of L-745,870 on retinal AA-NAT activity was blocked by 2-chloro-11-(4-methylpiperazino)dibenz[ b, f]oxepin, an antagonist of D(4)-DA receptors, but was not affected by raclopride, an antagonist of D(2)/D(3)-DA receptors. Altogether these results indicate that in chicks L-745,870, the potent putative D(4)-DA receptor antagonist, behaves in vivo as a partial D(4) agonist.

Binding of 5H-dibenzo[a,d]cycloheptene and dibenz[b,f]oxepin analogues of clozapine to dopamine and serotonin receptors.[Pubmed:7861418]

J Med Chem. 1995 Feb 17;38(4):708-14.

Series of 5,11-dicarbo- and 11-carbo-5-oxy-10-(1-alkyl-1,2,3,6-tetrahydro-4 pyridinyl) analogues and a 11-carbo-5-oxy-10-(1-methyl-4-piperidinyl) analogue of the atypical antipsychotic agent clozapine were prepared and tested for binding to the dopamine D-2L and D-4 and serotonin S-2A and S-2C receptors. Some of these analogues were found to have dopamine D-2L and D-4 and serotonin S-2A and S-2C receptor binding activities as high as or higher than those of clozapine, indicating that neither the diazepine structure nor the piperazine ring present in clozapine is essential for high antidopamine activity and or for high dopamine D-4 selectivity (Ki for the dopamine D-2L receptor/Ki for the dopamine D-4 receptor). Increasing in the effective size of the alkyl substituent at the tertiary amine nitrogen atom in the 1,2,3,6-tetrahydro-4-pyridinyl moiety in the 5H-dibenzo[a,d]cycloheptene series reduces the affinity for the dopamine D-4 receptor, but in the dibenz[b,f]oxepin series, no significant change in binding affinity to the dopamine D-4 receptor was observed. Equal or slightly higher affinity for the serotonin S-2A and S-2C receptors was observed for the 10-(1-ethyl-1,2,3,6-tetrahydro-4- pyridinyl) analogues in both series, but for the 10-[1,2,3,6-tetrahydro-1-(2-propenyl)-4- pyridinyl] analogues, any favourable steric factor is overshadowed by an unfavorable electronic effect as a result of change in the basicity of the tertiary amino group in the pyridinyl moiety. Replacement of three of the four nitrogen atoms in clozapine with three carbon or two carbon atoms and an oxygen atom and removal of the chlorine atoms gives 10-(1,2,3,6-tetrahydro-1- methyl-4-pyridinyl)dibenzo[a,d]cycloheptene and 10-(1-methyl-4-piperidinyl)dibenz[b,f]oxepin, each having twice the binding activity to the dopamine D-4 receptor as does clozapine and a dopamine D-4 selectivity equal to that of clozapine.

Binding of 5H-dibenzo[b,e][1,4]diazepine and chiral 5H-dibenzo[a,d]cycloheptene analogues of clozapine to dopamine and serotonin receptors.[Pubmed:8064797]

J Med Chem. 1994 Aug 19;37(17):2686-96.

5H-Dibenzo[b,e][1,4]diazepine, dibenz[b,f]oxepin, and 5H-dibenzo[a,d]cycloheptene analogues of clozapine [8-chloro-11-(4-methylpiperazino)-5H- dibenzo[b,e][1,4]diazepine] were evaluated for their binding affinity to dopamine D-1, D-2, and D-4 and serotonin S-2A (5-HT2A), S-2C (5-HT2C) and S-3 (5-HT3) receptors. The diazepine analogues display selective binding to the dopamine D-4 and serotonin S-2A receptors similar to that of clozapine, but none has a dopamine D-4 selectivity (Ki for the dopamine D-2A receptor/Ki for the dopamine D-4 receptor) greater than that of clozapine. All of the oxepin analogues also show substantial binding to the dopamine D-4 and serotonin S-2A receptors with 10-(4-methylpiperazino)dibenz[b,f]oxepin having a dopamine D-4 selectivity greater than that of clozapine. Some of the 5H-dibenzo-[a,d]cycloheptene analogues also show strong binding to both the dopamine D-4 and serotonin S-2A receptors, 5-methyl-10-(4-methylpiperazino)-5H-dibenzo[a,d]cycloheptene having a dopamine D-4 selectivity of 7.8 as compared to 10 for clozapine but a serotonin S-2A selectivity (Ki for the dopamine D-2 receptor/Ki for the serotonin S-2A receptor) of 2.0 as compared to 28 for clozapine. The serotonin S-2A selectivity of 2-chloro-10-(4-methylpiperazino)-5H-dibenzo[a,d]-cycloheptene++ + is 200. As an extension of these studies, chiral 5-substitute 10-(1,2,3,6-tetrahydro-1-methyl-4-pyridinyl)-5H-dibenzo[a,d]cyclohept ene analogues show a substantial enantiospecificity toward dopamine and serotonin receptor subtypes, (R)-(-)-5-methyl compound having a 2-fold higher dopamine D-4 selectivity than its (S)-(+) enantiomer as the result of enhanced binding to the dopamine D-4 receptor rather than diminished binding to the dopamine D-2 receptor. (pRa,pSb)-(+)-5-(2-Propylidene)-10-(1,2,3,6-tetrahydro-1-met hyl- 4-pyridinyl)-5H-dibenzo[a,d]cycloheptene is 17 times more active in binding to the dopamine D-4 receptor than is its pSa,pRb enantiomer while being only 1.5 times more active in binding to the dopamine D-2 receptor.

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