Meciadanol

Meciadanol
Names

IUPAC name 2-(3,4-dihydroxyphenyl)-3-methoxy-3,4-dihydro-2H-chromene-5,7-diol
Other names 3-O-methylcatechin Meciadanolum 3',4',5,7-Tetrahydroxy-3-methoxyflavan (2R,3S)-2-(3,4-Dihydroxyphenyl)-3-methoxy-5,7-chromandiol
Identifiers
CAS Number	65350-86-9^Y 87367-19-9^N
3D model (Jmol)	Interactive image
ChemSpider	8555738^N
ECHA InfoCard	100.059.719
PubChem	10380295
UNII	2H64SE2UXS^Y
InChI InChI=1S/C16H16O6/c1-21-15-7-10-12(19)5-9(17)6-14(10)22-16(15)8-2-3-11(18)13(20)4-8/h2-6,15-20H,7H2,1H3/t15-,16+/m0/s1^N Key: PDHSAQOQVUXZGQ-JKSUJKDBSA-N^N InChI=1/C16H16O6/c1-21-15-7-10-12(19)5-9(17)6-14(10)22-16(15)8-2-3-11(18)13(20)4-8/h2-6,15-20H,7H2,1H3/t15-,16+/m0/s1 Key: PDHSAQOQVUXZGQ-JKSUJKDBBQ
SMILES CO[C@H]1CC2=C(C=C(C=C2O[C@@H]1C3=CC(=C(C=C3)O)O)O)O
Properties
Chemical formula	C₁₆H₁₆O₆
Molar mass	304.29 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

Meciadanol is a synthetic O-methylated flavanol. It is the 3-O-methylation of catechin.

It inhibits the histidine decarboxylase in rats.^[1]

References

↑ Gastric protection by meciadanol. A new synthetic flavonoid-inhibiting histidine decarboxylase. Stanislaw J. Konturek, Mary Ellen Kitler, Tomasz Brzozowski and Tadeusz Radecki, Digestive Diseases and Sciences, Volume 31, Number 8 / 1986, Pages 847-852, doi:10.1007/BF01296054

Flavan-3-ols and their glycosides

Flavan-3-ols	Afzelechin Catechin (Epicatechin) Epicatechin gallate Epigallocatechin Epigallocatechin gallate Fisetinidol Gallocatechin Gallocatechin gallate Guibourtinidol Mesquitol Robinetinidol

O-methylated flavan-3ols	Meciadanol (3-O-methylcatechin) Ourateacatechin (4′-O-methyl-(−)-epigallocatechin)

Glycosides	Arthromerin A (Afzelechin-3-O-β-D-xylopyranoside) Arthromerin B (Afzelechin-3-O-β-D-glucopyranoside) Catechin-3-O-glucoside Catechin-3'-O-glucoside Catechin-4'-O-glucoside Catechin-5-O-glucoside Catechin-7-O-glucoside (+)-Catechin 7-O-β-D-xylopyranoside Epicatechin-3′-O-glucoside Glochiflavanoside A, B, C D Polydine ((+)-catechin 7-0-α-L-arabinoside) Symplocoside (3’-O-methyl-(-)-epicatechin 7-O-β-D-glucopyranoside)

Acetylated	Phylloflavan

Misc.	Thearubigins

Histaminergics

Receptor
(ligands)

H₁	Agonists: 2-Pyridylethylamine Betahistine Histamine HTMT 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 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 Non-generational: Atypical antipsychotics (e.g., aripiprazole, asenapine, clozapine, iloperidone, olanzapine, paliperidone, quetiapine, risperidone, ziprasidone, zotepine) 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: Belarizine Elbanizine Flotrenizine Napactadine Tagorizine Trelnarizine Trenizine

H₂	Agonists: Amthamine Betazole Dimaprit Histamine HTMT Impromidine 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 Methimepip Proxyfan Antagonists: A-349,821 A-423,579 ABT-239 ABT-652 AZD5213 Betahistine Burimamide Ciproxifan Clobenpropit Conessine Enerisant GSK-189,254 Impentamine Iodophenpropit Irdabisant JNJ-5207852 MK-0249 NNC 38-1049 PF-03654746 Pitolisant SCH-79687 Thioperamide VUF-5681

H₄	Agonists: 4-Methylhistamine α-Methylhistamine Histamine OUP-16 VUF-8430 Antagonists: JNJ-7777120 Mianserin Thioperamide Toreforant VUF-6002

Transporter
(inhibitors)

VMATs

TAAR1 inactive	Amiodarone APP AZIK Bietaserpine Deserpidine Dihydrotetrabenazine Efavirenz GBR-12935 GZ-793A Ibogaine Ketanserin Lobeline Methoxytetrabenazine Reserpine Rose bengal SD-809 Tetrabenazine Valbenazine Vanoxerine (GBR-12909)

TAAR1 active	Amphetamine Methamphetamine MDMA Phenethylamine

Enzyme
(inhibitors)

HDC	Catechin Meciadanol Naringenin Tritoqualine

HNMT	Amodiaquine Diphenhydramine Harmaline Metoprine Quinacrine SKF-91,488 Tacrine

DAO	Pimagedine (aminoguanidine)

Others

Precursors	L -Histidine

Cofactors	Vitamin B₆

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