Abstract: This invention relates to a process for preparing Sugammadex or its salts, preferably Sugammadex sodium, with a low content of organic solvents, preferably water-miscible organic solvents, more preferably ethanol, 2-propanol and/or acetone. The process comprises exposing Sugammadex or its salts, preferably Sugammadex sodium, to a medium with a high relative humidity.
Type:
Application
Filed:
January 13, 2021
Publication date:
June 1, 2023
Applicant:
MEDICHEM, S.A.
Inventors:
Jordi PUIG SERRANO, Ernesto DURAN LÓPEZ, Jordi MARKALAIN BARTA, Joana Raquel FERREIRA DA COSTA
Abstract: The present invention is related to a process for preparing safinamide and salts thereof, preferably safinamide methanesulfonate, with high yields and high enantiomeric and chemical purity without the need of using highly pure intermediates. The process of the present invention is suitable for the production of safinamide and its salts, preferably safinamide methanesulfonate, at industrial scale.
Type:
Grant
Filed:
August 5, 2020
Date of Patent:
January 18, 2022
Assignee:
MEDICHEM, S.A.
Inventors:
Yisong Wen, David Font Gimbernat, Ernesto Durán López
Abstract: This invention relates to an improved process for the synthesis of Sugammadex or a salt thereof, to Sugammadex or a salt thereof having high purity as obtained by said process and to pharmaceutical compositions comprising said high purity Sugammadex or a salt thereof.
Type:
Grant
Filed:
November 26, 2018
Date of Patent:
August 31, 2021
Assignee:
Medichem, S.A.
Inventors:
Jordi Puig Serrano, Jordi Bosch I Llado, Iteng Ng Choi, Ernesto Duran López
Abstract: The present invention relates to a process for preparing lifitegrast or a salt thereof, wherein the process comprises hydrogenation of compound II in a mixture comprising at least one solvent selected from the group consisting of acetonitrile, a ketone solvent, an ester solvent and a mixture thereof, preferably acetonitrile.
Abstract: This invention relates to an improved process for the synthesis of Sugammadex or a salt thereof, to Sugammadex or a salt thereof having high purity as obtained by said process and to pharmaceutical compositions comprising said high purity Sugammadex or a salt thereof.
Type:
Application
Filed:
November 26, 2018
Publication date:
December 3, 2020
Applicant:
MEDICHEM, S.A.
Inventors:
Jordi PUIG SERRANO, Jordi BOSCH I LLADO, Iteng NG CHOI, Ernesto DURAN LÓPEZ
Abstract: The present invention relates to a stable antiseptic solution comprising: a di(4-chlorophenyldiguanido) compound or a pharmaceutically acceptable salt thereof, wherein said di(4-chlorophenyldiguanido) compound or a pharmaceutically acceptable salt thereof is a compound of formula (I) or a pharmaceutically acceptable salt thereof. The invention further relates to a process for preparing said antiseptic solution.
Abstract: The present invention relates to dabigatran etexilate and related substances and use of the substances as reference standards and markers. There are also provided processes of detecting the substances in samples of dabigatran etexilate, or pharmaceutically acceptable salts or solvates thereof, and also for analyzing the purity of samples of dabigatran etexilate, or pharmaceutically acceptable salts or solvates thereof. There are still further provided processes of preparing dabigatran etexilate and related substances, and pharmaceutical compositions containing the same.
Abstract: The invention relates to solid forms of the anti-epileptic agent lacosamide (I). The invention also relates to mixtures of solid forms of lacosamide. The invention further relates to mixtures of lacosamide enantiomers crystallized in a conglomerate Form and the use thereof in providing enantiomerically enriched lacosamide, preferably lacosamide enriched with the (R)-enantiomer of lacosamide.
Type:
Grant
Filed:
April 12, 2013
Date of Patent:
February 3, 2015
Assignee:
Medichem, S.A.
Inventors:
Ernesto Duran Lopez, Monica Benito Velez, Jordi Bosch i Lladó
Abstract: The present invention relates to dabigatran etexilate and related substances and use of the substances as reference standards and markers. There are also provided processes of detecting the substances in samples of dabigatran etexilate, or pharmaceutically acceptable salts or solvates thereof, and also for analyzing the purity of samples of dabigatran etexilate, or pharmaceutically acceptable salts or solvates thereof. There are still further provided processes of preparing dabigatran etexilate and related substances, and pharmaceutical compositions containing the same.
Abstract: This invention provides improved processes for the preparation of 5-chloro-2-methyl-2,3,3a 12b-tetrahydro-1H-dibenzo[2,3:6,7]oxepino[4,5-c]pyrrole, asenapine. These processes allow the preparation of asenapine at industrial scale in good yields and high stereoselectivity.
Type:
Grant
Filed:
December 23, 2011
Date of Patent:
November 12, 2013
Assignee:
Medichem, S.A.
Inventors:
Jordi Bosch i Lladó, Ernesto Duran Lopez
Abstract: The present invention relates to a process for determining the suitability for distribution of a batch of rivaroxaban or of a pharmaceutical composition thereof. In particular, it also relates to two impurities of rivaroxaban, to their use as reference markers to determine the purity of a sample of rivaroxaban or a composition thereof, to analytical methods for determining the purity of a sample of rivaroxaban or a composition thereof and to a process of preparing rivaroxaban or pharmaceutical compositions thereof which are free or substantially free of such impurities.
Type:
Application
Filed:
September 14, 2010
Publication date:
September 26, 2013
Applicant:
Medichem, S.A.
Inventors:
Bernardino Mangion, Ernesto Duran Lopez
Abstract: The invention relates to solid forms of the anti-epileptic agent lacosamide (I). The invention also relates to mixtures of solid forms of lacosamide. The invention further relates to mixtures of lacosamide enantiomers crystallized in a conglomerate Form and the use thereof in providing enantiomerically enriched lacosamide, preferably lacosamide enriched with the (R)-enantiomer of lacosamide.
Abstract: The invention relates to retigabine with improved color quality, and to processes for preparing the same. In addition, the invention relates to a process for drying wet retigabine. Also, the invention relates to stabilized or substantially stabilized retigabine in solid state, or a mixture or pharmaceutical formulation comprising the same. Further, the invention also relates to an improved process for preparing retigabine.
Type:
Application
Filed:
February 18, 2011
Publication date:
May 23, 2013
Applicant:
MEDICHEM, S.A.
Inventors:
Ernesto Duran Lopez, Jordi Bosch I Lladó, Judit Serra Miralles
Abstract: The invention relates to solid forms of the anti-epileptic agent lacosamide (I). The invention also relates to mixtures of solid forms of lacosamide. The invention further relates to mixtures of lacosamide enantiomers crystallized in a conglomerate Form and the use thereof in providing enantiomerically enriched lacosamide, preferably lacosamide enriched with the (R)-enantiomer of lacosamide.
Type:
Grant
Filed:
August 5, 2010
Date of Patent:
May 14, 2013
Assignee:
Medichem, S.A.
Inventors:
Ernesto Duran Lopez, Monica Benito Velez, Jordi Bosch i Lladó
Abstract: This invention provides a novel dicarboxylic acid salt forms of varenicline, namely varenicline fumarate, and methods for making same. Varenicline salts are useful for treating smoking addition. In one embodiment of the instant invention, the varenicline fumarate shows an XRD pattern (2?)) (±0.2° having characteristic peaks at 10.6, 11.9, 13.2, 16.2, 16.6, 18.0, 21.5, 22.6, 25.7, 28.5 and 29.1°. In another embodiment, the varenicline fumarate is prepared by (i) contacting varenicline with fumaric acid, optionally in the presence of a suitable solvent, and removing the solvent when necessary, or (ii) contacting varenicline fumarate salt with a suitable solvent, and removing the solvent.
Type:
Grant
Filed:
March 6, 2009
Date of Patent:
May 14, 2013
Assignee:
Medichem S.A.
Inventors:
Stephen Benedict David Winter, Monica Benito Velez
Abstract: The present invention is concerned with a process of preparing (R)-lacosamide. The process comprises providing an (R,S)-lacosamide precursor and contacting the same with at least an enzyme in the presence of a solvent. The enzyme either stereoselectively hydrolyzes or acetylates an (R)- or (S)-enantiomer of the (R,S)-lacosamide precursor. The process further comprises where appropriate also concurrently, or successively, employing one or more reagents capable of converting the hydrolysed or acetylated (R)- or (S)-enantiomer to (R)-lacosamide.
Type:
Application
Filed:
June 15, 2011
Publication date:
April 18, 2013
Applicant:
MEDICHEM, S.A.
Inventors:
Jordi Bosch i Lladó, Ernesto Durán López
Abstract: The invention relates to a process for reducing the residual amount of p-chloroaniline in chlorhexidine. Also, the invention relates to a process for preparing chlorhexidine, or a pharmaceutically acceptable salt thereof, which is free of potential genotoxicity. In addition, the invention refers to the said chlorhexidine, or a pharmaceutically acceptable salt thereof, which is free of potential genotoxicity. Further, the invention relates to an analytical HPLC method for the determination of potentially genotoxic impurities in samples of chlorhexidine, or of a pharmaceutically acceptable salt thereof. The invention also relates to stabilized chlorhexidine digluconate salt free of potential genotoxicity in aqueous solution, and to a method for stabilizing chlorhexidine digluconate salt free of potential genotoxicity in aqueous solution.
Type:
Application
Filed:
November 18, 2010
Publication date:
March 14, 2013
Applicant:
MEDICHEM S.A.
Inventors:
Laura Sanchez Salguero, Raquel Bou Bosch, Jordi Bosch I Lladó
Abstract: The invention relates to new crystalline polymorphic forms of N-[2-(diethylamino)ethyl]-5-[(Z)-(5-fluoro-1,2-dihydro-2-oxo-3H-indol-3-ylidine)methyl]-2,4-dimethyl-1H-pyrrole-3-carboxamide (i.e., sunitinib base), including Form I, Form II, and Form IV, processes for preparing crystalline polymorphic forms of sunitinib base, and pharmaceutically acceptable salts of new crystalline polymorphic forms of sunitinib base and pharmaceutical compositions comprising new crystalline polymorphic forms of sunitinib base, salts of new crystalline polymorphic forms of sunitinib base and mixtures thereof.
Type:
Grant
Filed:
December 12, 2008
Date of Patent:
March 5, 2013
Assignee:
Medichem, S.A.
Inventors:
Stephen Benedict David Winter, Bernardino Mangion
Abstract: This invention provides a novel crystalline sitagliptin ethanedisulfonate salt having the structure set forth below, and a method for using same to treat type 2 diabetes.
Type:
Grant
Filed:
March 29, 2012
Date of Patent:
March 5, 2013
Assignee:
Corporacion Medichem, S.L.
Inventors:
Stephen Benedict David Winter, Monica Benito Velez, Ernesto Duran Lopez
Abstract: The invention provides an improved process for the preparation of a benzonaphthalene derivative including, in particular, the manufacture of high purity adapalene. The invention further includes a method for assessing the color of adapalene by means of a quantitative colorimetric measurement of the produced adapalene.