- AN IMPROVED PROCESS FOR THE SYNTHESIS OF IVABRADINE AND ITS PHARMACEUTICALLY ACCEPTABLE SALTS
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: Disclosed herein is an improved process for the preparation of Ivabradine and pharmaceutically acceptable salts thereof. The invention more particularly disclosesthe synthesis of key intermediates viz.,(S)-N-[(4,5-dimethoxybenzocydobut-l-yl)-methyl]-N- (methyl)amine hydrochloride of Formula-II and 3-(3-Iodopropyl)-7,8-dimethoxy-1,3-dihydro-2H-3-benzapin-2-one of Formula-III, and its use in industrial synthesis of Ivabradine and pharmaceutically acceptable salts thereof.
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Page/Page column 17
(2019/11/12)
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- (1 S) - 4, 5 - dimethoxy - 1 - [(methylamino) methyl] benzocyclobutane preparation of hydrochloride salts of method
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The invention provides a preparation method of (1S)-4,5-dimethoxy-1-[(methylamino)methyl]benzocyclobutane hydrochloride, which specially comprises the following step: carrying out reduction and salting-out on 4,5-dimethoxybenzocyclobutyl-1-methyl formamide in an inert solvent to finally obtain the (1S)-4,5-dimethoxy-1-[(methylamino)methyl]benzocyclobutane hydrochloride (I). The reaction is simple to operate, has the advantages of mild reaction conditions, clean and accessible raw/auxiliary materials, low overall cost, high chemical and enantiomer purity and the like, and therefore, is suitable for industrial production.
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Paragraph 0109; 0116; 0121; 0122
(2018/04/02)
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- Exploiting the Biocatalytic Toolbox for the Asymmetric Synthesis of the Heart-Rate Reducing Agent Ivabradine
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Several chemoenzymatic routes have been evaluated for the production of the heart-rate reducing agent ivabradine. Lipases and ω-transaminases have been identified as useful biocatalysts for the preparation of key enantiopure precursors. The lipase-catalysed kinetic resolution by alkoxycarbonylation of a racemic primary amine and subsequent chemical reduction of the resulting carbamate provided an N-methylated (S)-amine, one step away from ivabradine. Alternatively, the dynamic kinetic resolution by asymmetric bioamination of an aldehyde precursor enabled, in a four-step sequence, the preparative scale synthesis of enantiopure ivabradine in 50% overall yield. (Figure presented.).
- Pedragosa-Moreau, Sandrine,Le Flohic, Alexandre,Thienpondt, Vivien,Lefoulon, Fran?ois,Petit, Anne-Marie,Ríos-Lombardía, Nicolás,Morís, Francisco,González-Sabín, Javier
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supporting information
p. 485 - 493
(2017/02/10)
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- Process for the enzymatic synthesis of (7S)-3,4-dimethoxybicyclo[4.2.0]OCTA-1,3,5-triene-7-carboxylic acid and application in the synthesis of ivabradine and salts thereof
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Process for the enzymatic synthesis of the compound of formula (I): comprising enantioselective enzymatic hydrolysis of the nitrile of formula (IV): using the nitrilase of Rhodococcus rhodochrous of EMBL accession number EF467367.1, and the application of such a process in the synthesis of ivabradine and addition salts thereof with a pharmaceutically acceptable acid.
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- INDUSTRIAL PROCESS FOR THE SYNTHESIS OF IVABRADINE SALTS
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Process for the synthesis of Ivabradine salts of formula (I) the chemical name of which is: 3-{3-[((S)-3,4-dimethoxy-bicyclo[4.2.0]octa-1,3,5-triene- 7-ylmethyl)-methyl-amino]-propyl}-7,8-dimethoxy-1,3,4,5-tetrahydro-2H-3-benzazepine-2-one salts (HQ=HCl, HBr, HI, HNO3, HClO4, (COOH)2), and new intermediates thereof. Certain crystalline forms of the acid addition salts of Ivabradine (I) with nitric acid (I, HQ=HNO3), hydrobromic acid (I, HQ=HBr), hydroiodic acid (I, HQ=HI), oxalic acid (I, HQ= (COOH)2) and perchloric acid (I, HQ=HClO4)).
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- PROCESS FOR THE SYNTHESIS OF (IS)-4,5-DIMETHOXY-1-(METHYLAMINOMETHYL)-BENZOCYCLOBUTANE AND ADDITION SALTS THEREOF, AND TO THE APPLICATION THEREOF IN THE SYNTHESIS OF IVABRADINE AND ADDITION SALTS THEREOF WITH A PHARMACEUTICALLY ACCEPTABLE ACID
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Process for the synthesis of the compound of formula (I): Application in the synthesis of ivabradine, addition salts thereof with a pharmaceutically acceptable acid, and hydrates thereof.
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Page/Page column 3
(2008/06/13)
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