A-423,579

A-423,579 is one of a range of histamine antagonists developed by Abbott Laboratories which are selective for the H₃ subtype, and have stimulant and anorectic effects in animal studies making them potentially useful treatments for obesity. A-423,579 has improved characteristics over earlier drugs in the series with both high efficacy and low toxicity in studies on mice, and is currently in clinical development.[1][2]

A-423,579
Names

IUPAC name 4-[4-[3-[(3R)-3-(dimethylamino)pyrrolidin-1-yl]propoxy]-3,5-difluorophenyl]benzonitrile
Identifiers
CAS Number	461045-17-0^N
3D model (JSmol)	Interactive image Interactive image
ChEMBL	ChEMBL498228^Y
ChemSpider	9524593 (R)^Y 13210784^Y
PubChem CID	11349657 (R) 22994515
InChI InChI=1S/C22H25F2N3O/c1-26(2)19-8-10-27(15-19)9-3-11-28-22-20(23)12-18(13-21(22)24)17-6-4-16(14-25)5-7-17/h4-7,12-13,19H,3,8-11,15H2,1-2H3/t19-/m1/s1^Y Key: DJXFZKXYKKBTDR-LJQANCHMSA-N^Y
SMILES CN(C)C1CCN(CCCOC2=C(F)C=C(C=C2F)C2=CC=C(C=C2)C#N)C1 CN(C)C1CCN(CCCOc2c(F)cc(cc2F):c2ccc(cc2)C#N)C1
Properties
Chemical formula	C₂₂H₂₅F₂N₃O
Molar mass	385.4502 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is ^YN ?)
Infobox references

References

Hancock AA, Diehl MS, Faghih R, Bush EN, Krueger KM, Krishna G, Miller TR, Wilcox DM, Nguyen P, Pratt JK, Cowart MD, Esbenshade TA, Jacobson PB (September 2004). "In vitro optimization of structure activity relationships of analogues of A-331440 combining radioligand receptor binding assays and micronucleus assays of potential antiobesity histamine H3 receptor antagonists". Basic Clin. Pharmacol. Toxicol. 95 (3): 144–52. doi:10.1111/j.1742-7843.2004.950307.x. PMID 15447739.
Hancock AA, Diehl MS, Fey TA, Bush EN, Faghih R, Miller TR, Krueger KM, Pratt JK, Cowart MD, Dickinson RW, Shapiro R, Knourek-Segel VE, Droz BA, McDowell CA, Krishna G, Brune ME, Esbenshade TA, Jacobson PB (April 2005). "Antiobesity evaluation of histamine H3 receptor (H3R) antagonist analogs of A-331440 with improved safety and efficacy". Inflamm. Res. 54 Suppl 1: S27–9. doi:10.1007/s00011-004-0412-z. PMID 15928821.

Histamine receptor modulators
H₁	Agonists: 2-Pyridylethylamine Betahistine Histamine HTMT L-Histidine UR-AK49 Antagonists: First-generation: 4-Methyldiphenhydramine Alimemazine Antazoline Azatadine Bamipine Benzatropine (benztropine) Bepotastine Bromazine Brompheniramine Buclizine Captodiame Carbinoxamine Chlorcyclizine Chloropyramine Chlorothen Chlorphenamine Chlorphenoxamine Cinnarizine Clemastine Clobenzepam Clocinizine Cloperastine Cyclizine Cyproheptadine Dacemazine Decloxizine Deptropine Dexbrompheniramine Dexchlorpheniramine Dimenhydrinate Dimetindene Diphenhydramine Diphenylpyraline Doxylamine Embramine Etodroxizine Etybenzatropine (ethylbenztropine) Etymemazine Fenethazine Flunarizine Histapyrrodine Homochlorcyclizine Hydroxyethylpromethazine Hydroxyzine Isopromethazine Isothipendyl Meclozine Medrylamine Mepyramine (pyrilamine) Mequitazine Methafurylene Methapyrilene Methdilazine Moxastine Orphenadrine Oxatomide Oxomemazine Perlapine Phenindamine Pheniramine Phenyltoloxamine Pimethixene Piperoxan Pipoxizine Promethazine Propiomazine Pyrrobutamine Talastine Thenalidine Thenyldiamine Thiazinamium Thonzylamine Tolpropamine Tripelennamine Triprolidine Second/third-generation: Acrivastine Alinastine Astemizole Azelastine Bamirastine Barmastine Bepiastine Bepotastine Bilastine Cabastinen Carebastine Cetirizine Clemastine Clemizole Clobenztropine Desloratadine Dorastine Ebastine Efletirizine Emedastine Epinastine Fexofenadine Flezelastine Ketotifen Latrepirdine Levocabastine Levocetirizine Linetastine Loratadine Mapinastine Mebhydrolin Mizolastine Moxastine Noberastine Octastine Olopatadine Perastine Pibaxizine Piclopastine Quifenadine (phencarol) Rocastine Rupatadine Setastine Sequifenadine (bicarphen) Talastine Temelastine Terfenadine Vapitadine Zepastine Others: Atypical antipsychotics (e.g., aripiprazole, asenapine, brexpiprazole, brilaroxazine, clozapine, iloperidone, olanzapine, paliperidone, quetiapine, risperidone, ziprasidone, zotepine) Phenylpiperazine antidepressants (e.g., hydroxynefazodone, nefazodone, trazodone, triazoledione) Tetracyclic antidepressants (e.g., amoxapine, loxapine, maprotiline, mianserin, mirtazapine, oxaprotiline) Tricyclic antidepressants (e.g., amitriptyline, butriptyline, clomipramine, desipramine, dosulepin (dothiepin), doxepin, imipramine, iprindole, lofepramine, nortriptyline, protriptyline, trimipramine) Typical antipsychotics (e.g., chlorpromazine, flupenthixol, fluphenazine, loxapine, perphenazine, prochlorperazine, thioridazine, thiothixene) Unknown/unsorted: Azanator Belarizine Elbanizine Flotrenizine GSK1004723 Napactadine Tagorizine Trelnarizine Trenizine
H₂	Agonists: Amthamine Betazole Dimaprit Histamine HTMT Impromidine L-Histidine UR-AK49 Antagonists: Bisfentidine Burimamide Cimetidine Dalcotidine Donetidine Ebrotidine Etintidine Famotidine Isolamtidine Lafutidine Lamtidine Lavoltidine (loxtidine) Lupitidine Metiamide Mifentidine Niperotidine Nizatidine Osutidine Oxmetidine Pibutidine Quisultazine (quisultidine) Ramixotidine Ranitidine Roxatidine Sufotidine Tiotidine Tuvatidine Venritidine Xaltidine Zolantidine
H₃	Agonists: α-Methylhistamine Cipralisant Histamine Imetit Immepip Immethridine L-Histidine Methimepip Proxyfan Antagonists: A-349,821 A-423,579 ABT-239 ABT-652 AZD5213 Bavisant Betahistine Burimamide Ciproxifan Clobenpropit Conessine Enerisant GSK-189,254 Impentamine Iodophenpropit Irdabisant JNJ-5207852 NNC 38-1049 PF-03654746 Pitolisant SCH-79687 Thioperamide VUF-5681
H₄	Agonists: 4-Methylhistamine α-Methylhistamine Histamine L-Histidine OUP-16 VUF-8430 Antagonists: JNJ-7777120 Mianserin Seliforant Thioperamide Toreforant VUF-6002
See also: Receptor/signaling modulators • Monoamine metabolism modulators • Monoamine reuptake inhibitors

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