Patents Assigned to ZaCh System
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Publication number: 20240376040Abstract: The present invention relates to a process for the preparation of spherical agglomerates of safinamide or a pharmaceutically acceptable salt thereof, to the agglomerates thus obtained and to a process for preparing a pharmaceutical composition including said agglomerates.Type: ApplicationFiled: June 8, 2022Publication date: November 14, 2024Applicant: ZACH SYSTEMInventors: Massimiliano FORCATO, Aurélien LEMERCIER, Gérard COQUEREL, Yohann CARTIGNY
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Patent number: 9920089Abstract: The present invention relates to a process for the preparation of 17-substituted steroids and, more particularly, to an improved method of preparing micro size abiraterone or derivatives thereof in high yield and purity by means of a spherical agglomeration process.Type: GrantFiled: April 11, 2014Date of Patent: March 20, 2018Assignee: ZACH SYSTEMInventors: Patricia Poirier, Yvon Derrien, Massimiliano Forcato, Livius Cotarca, Pierrick Morice
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Patent number: 9353145Abstract: The present invention relates to a process for the preparation of 17-substituted steroids and, more particularly, to an improved method of synthesizing abiraterone or derivatives thereof in high yield and purity by means of a key 3-formate intermediate.Type: GrantFiled: October 9, 2012Date of Patent: May 31, 2016Assignee: ZACH SYSTEMInventors: Yvon Derrien, Patricia Poirier, Massimiliano Forcato, Tony Pintus, Livius Cotarca, Sebastien Meunier, Laurence Graindorge
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Publication number: 20160083416Abstract: The present invention relates to a process for the preparation of 17-substituted steroids and, more particularly, to an improved method of preparing micro size abiraterone or derivatives thereof in high yield and purity by means of a spherical agglomeration process.Type: ApplicationFiled: April 11, 2014Publication date: March 24, 2016Applicant: ZACH SYSTEMInventors: Patricia POIRIER, Yvon DERRIEN, Massimiliano FORCATO, Livius COTARCA, Pierrick MORICE
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Patent number: 8981127Abstract: The present invention relates to a process for the preparation of nebivolol and, more particularly, to an improved process of synthesizing an alpha-haloketone of formula a key intermediate in the preparation of nebivolol.Type: GrantFiled: September 22, 2009Date of Patent: March 17, 2015Assignee: Zach SystemInventors: Yvon Derrien, Eric Chenard, Alain Burgos
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Publication number: 20140256932Abstract: The present invention relates to a process for the preparation of 17-substituted steroids and, more particularly, to an improved method of synthesizing abiraterone or derivatives thereof in high yield and purity by means of a key 3-formate intermediate.Type: ApplicationFiled: October 9, 2012Publication date: September 11, 2014Applicant: ZACH SYSTEMInventors: Yvon Derrien, Patricia Poirier, Massimiliano Forcato, Tony Pintus, Livius Cotarca, Sebastien Meunier, Laurence Graindorge
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Patent number: 8198054Abstract: This disclosure relates to the synthesis of the compound of formula (I) according to Scheme A below: in which R1, R2 and R3, which may be identical or different, represent, individually and independently, an alkyl group, characterized by an enzymatic hydrolysis reaction that involves placing the compound of formula (II) in contact with an enzyme that performs a chemoselective hydrolysis of only one of the two ester functions of the compound of formula (II) to obtain the compound of formula (I).Type: GrantFiled: January 22, 2008Date of Patent: June 12, 2012Assignees: Zach System, Novacta Biosystem LimitedInventors: Alain Burgos, Jean-Claude Caille, Michelle Lorraine-Gradley
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Publication number: 20110237808Abstract: The present invention relates to a process for the preparation of nebivolol and, more particularly, to an improved process of synthesizing an alpha-haloketone of formula a key intermediate in the preparation of nebivolol.Type: ApplicationFiled: September 22, 2009Publication date: September 29, 2011Applicant: ZACH SYSTEMInventors: Yvon Derrien, Eric Chenard, Alain Burgos
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Patent number: 7884243Abstract: A process for the production of ene-amide derivatives represented by the formula (I) wherein R1 and R2 and R3 are independently a hydrogen atom, an alkyl, a cycloalkyl, a cycloalkylalkyl, an alkylaryl, an aryl, a heterocycle, a cyano, an alkoxy, an aryloxy, a carboxyl, a carbamoyl, —CONR5R6 (in which R5 and R6 are independently an alkyl, arylalkyl or aryl group said ring being substituted or not with a functional group or with R5) or —COOR5 group (in which R5 is an alkyl, alkylaryl or aryl group), said alkyl, cycloalkyl, cycloalkylalkyl, alkylaryl and aryl groups being substituted or not with a functional group or with R5; or R1 and R2 taken together, may form a ring (which terms includes mono-, di- and higher polycyclic ring systems); R4 is a hydrogen atom, an alkyl, an aryl, an alkylaryl, said groups are substituted or not with a halogen atom as Cl, Br, or F; X is an oxygen atom or a leaving group and m is an integer 1 or 2; when m is 1 then X is a leaving group; when m is 2 then X is a oxygen atom, whiType: GrantFiled: December 22, 2004Date of Patent: February 8, 2011Assignee: Zach SystemInventors: Alain Burgos, Blandine Bertrand, Sonia Roussiasse, Jean-François Pluvie, Sylvie Blanchet, Juliette Martin, Florence Perrin, Françoise Bourdeau
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Publication number: 20100068770Abstract: The invention relates to a synthesis process. This process relates to the synthesis of the compound of formula (I) according to Scheme A below: in which R1, R2 and R3, which may be identical or different, represent, individually and independently, an alkyl group, characterized by an enzymatic hydrolysis reaction that involves placing the compound of formula (II) in contact with an enzyme that performs a chemoselective hydrolysis of only one of the two ester functions of the compound of formula (II) to obtain the compound of formula (I). The invention allows the industrial preparation of the intermediate of formula (I), which may be used for the preparation of the pharmaceutical active principle repaglinide.Type: ApplicationFiled: January 22, 2008Publication date: March 18, 2010Applicants: ZACH SYSTEM, NOVACTA BIOSYSTEMS LIMITEDInventors: Alain Burgos, Jean-Claude Caille, Michelle Lorraine Gradley
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Patent number: 7586015Abstract: A process is used for the preparation of 1,3,2-oxazaborolidine compounds. This process prepares compounds of formula (I) or (IA): in which: R1 is an alkyl or an aryl; and R2, R3, R4 and R5 are especially a hydrogen atom or an alkyl, wherein the following are reacted in two steps: a) a boric precursor compound with an acetal compound to give a boronate compound; and b) the boronate compound with an amino alcohol compound. This process avoids by-products and exhibits a very good stereospecificity.Type: GrantFiled: January 25, 2007Date of Patent: September 8, 2009Assignee: Zach SystemInventors: Alain Burgos, Stëphane Frein
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Publication number: 20090131688Abstract: The invention concerns a novel method for synthesis of 4-benzofuran-carboxylic acid or alkyl ester thereof. This method is characterized in that a reaction for aromatization of a compound of formula (II) is performed for the synthesis of the compound of formula (I), according to the scheme A2 below: wherein R independently represents hydrogen or a linear or branched C1-15 alkyl group. With the invention, it is possible to industrially synthesize 4-benzofuran-carboxylic acid or alkyl ester thereof with good yield and very good purity.Type: ApplicationFiled: February 25, 2008Publication date: May 21, 2009Applicant: ZACH SYSTEMInventors: Alain Burgos, Martine Maruani, Florence Perrin, Stephane Frein
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Patent number: 7462742Abstract: An in situ or one-pot process for the preparation of the compounds of formula (I) uses a compound of general formula (I): and includes: a) the hydrogenation of a nitrile group of the compound of general formula (II): in which R1 to R4 are especially H or alkyl and n varies from 0 to 4, in the presence of a hydrogenation catalyst, a methylating agent and an organic acid as solvent, and at a temperature Ta below the initiation temperature of a reductive amination reaction, to give a primary amine from the nitrile group; and b) the reductive amination of the primary amine in the presence of hydrogen, at a temperature Tb above Ta, to give the dimethylated amine of general formula (I) by activation of the methylating age.Type: GrantFiled: January 23, 2007Date of Patent: December 9, 2008Assignee: Zach SystemInventors: Alain Burgos, Jacques Tonnel, Valéry Dambrin, Denis Lucet, Patricia Poirier
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Patent number: 7456320Abstract: A process for the preparation of optically active substituted alpha-amino-indane derivatives of formula (I), which include: an asymmetric hydrogenation reaction of an en-amide derivative of formula (III) in presence of hydrogen and an optically active catalyst, in order to obtain an amide derivative of formula (II), a hydrolysis reaction of the amide derivative of formula (II) obtained in the previous step, in order to obtain optically active substituted alpha-amino-indane derivatives of formula (I).Type: GrantFiled: February 21, 2005Date of Patent: November 25, 2008Assignee: ZaCh SystemInventors: Blandine Bertrand, Sylvie Blanchet, Alain Burgos, Juliette Martin, Florence Perrin, Sonia Roussiasse, Yvon Derrien
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Patent number: 7390926Abstract: The invention provides the diastereoselective alkylation of optically active nopinone to form the compound of formula (I) according to scheme A below: in which: —R is a C5-15 alkyl group; —R1 is especially a C1-15 alkyl, C2-15 alkenyl or C2-15 alkynyl group or a C5-15 aryl, each group optionally being substituted; and —X is a halogen atom; and the configuration of the compound of formula (I) is either (E) or (Z) or a mixture of the two. The compound of formula (I) is a valuable synthetic intermediate.Type: GrantFiled: July 12, 2006Date of Patent: June 24, 2008Assignee: ZaCh SystemInventors: Jean-Claude Caille, Marc Mauduit