Patents by Inventor Ernesto Duran Lopez

Ernesto Duran Lopez has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20110159096
    Abstract: The present invention relates to voriconazole, processes of preparing voriconazole, and pharmaceutical compositions and therapeutic uses thereof. In particular, the present invention also relates to voriconazole prepared from voriconazole having a substantially undefined shape and/or crystal habit. The invention further relates to voriconazole having a modified sphericity factor and/or specific surface area and/or Sauter diameter compared to voriconazole known from the prior art.
    Type: Application
    Filed: July 23, 2010
    Publication date: June 30, 2011
    Applicant: Medichem, S.A.
    Inventors: Ernesto Duran Lopez, Juan Contreras Lascorz
  • Publication number: 20110034731
    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: Application
    Filed: August 5, 2010
    Publication date: February 10, 2011
    Applicant: Medichem, S.A.
    Inventors: Ernesto Durán López, Monica Benito Velez, Jordi Bosch i Lladó
  • Publication number: 20110015274
    Abstract: The present disclosure relates generally to rasagiline mesylate with improved flowability and with advantageously reduced stickiness, to processes for the preparation thereof, and to the use thereof for milling and for preparing pharmaceutical formulations. Methods for improving the flowability and/or alleviating the stickiness of rasagiline mesylate having a very poor flowability and/or showing undesirable stickiness are also disclosed.
    Type: Application
    Filed: July 20, 2010
    Publication date: January 20, 2011
    Inventors: Ester Masllorens Llinas, Ernesto Duran Lopez
  • Publication number: 20100234469
    Abstract: The invention relates to 2-amino-3-benzoylbenzeneacetamide, i.e. nepafenac, crystals having reduced chargeability, to processes for the preparation thereof, and to the use thereof for preparing pharmaceutical formulations.
    Type: Application
    Filed: March 12, 2010
    Publication date: September 16, 2010
    Applicant: Medichem, S.A.
    Inventors: Ana Gavaldá Escudé, Ernesto Duran Lopez
  • Publication number: 20100069637
    Abstract: This invention provides novel crystalline acid salt forms of 7-[(3R)-3-amino-1-oxo-4-(2,4,5-trifluorophenyl)butyl]-5,6,7,8-tetrahydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-a]pyrazine, i.e. sitagliptin, to processes for their preparation and isolation, and to pharmaceutical compositions comprising the same.
    Type: Application
    Filed: July 29, 2009
    Publication date: March 18, 2010
    Applicant: Medichem S.A.
    Inventors: Stephen Benedict David WINTER, Monica BENITO VELEZ, Ernesto DURAN LOPEZ
  • Publication number: 20100056784
    Abstract: The present invention relates to an improved process for the preparation of Voriconazole.
    Type: Application
    Filed: July 12, 2007
    Publication date: March 4, 2010
    Applicant: MEDICHEM, S.A.
    Inventors: Ernesto Duran Lopez, Marcal Carreras i Vilagran, Juan Contreras Lascorz
  • Publication number: 20100041920
    Abstract: The present invention relates generally to novel salt forms of R-(+)-N-propargyl-1-aminoindan (i.e. rasagiline base), to a compound of formula Ia, to processes for their preparation and isolation, and to pharmaceutical compositions comprising the same.
    Type: Application
    Filed: July 20, 2009
    Publication date: February 18, 2010
    Inventors: Stephen Benedict David Winter, Ernesto Duran Lopez, Monica Benito Velez
  • Publication number: 20090306406
    Abstract: A process for preparing substituted pyrrolidine compounds, including (5)-2-{1-[2-(2,3-dihydrobenzofuran-5-yl)ethyl]-3-pyrrolidinyl}-2,2-diphenylacetamide hydrobromide, commonly known in the art as darifenacin, comprising reacting a pyrrolidine compound with a benzofuran derivative in the presence of a phase-transfer catalyst.
    Type: Application
    Filed: September 7, 2007
    Publication date: December 10, 2009
    Applicant: Medichem ,S.A.
    Inventors: Núria Soldevilla Madrid, Ernesto Durán López, Jordi Puig Serrano
  • Publication number: 20090234128
    Abstract: The invention relates to a polymorphic form of 5-(4-[2-(N-methyl-N-(2-pyridyl)amino)ethoxy]benzylidene)-2,4-thiazolidinedione (Formula (I)): to a process for its preparation and to the use of such compound for preparing rosiglitazone in the form of a free base or a salt thereof. The invention also relates to a polymorphic form of rosiglitazone in the form of a free base, to a process for its preparation and to the use of such polymorph for preparing a salt of rosiglitazone. The invention also relates to a process of preparing a polymorphic form of a rosiglitazone salt.
    Type: Application
    Filed: March 8, 2007
    Publication date: September 17, 2009
    Inventor: Ernesto Duran Lopez
  • Publication number: 20080306257
    Abstract: The present invention relates to a process for preparing racemic narwedine (which can be can be kinetically resolved) to yield (?)-narwedine and which is the biogenic precursor of (?)-galanthamine) and the use thereof as a starting material for producing (?)-galanthamine. The invention further includes processes for preparing (?)-galanthamine and (?)-galanthamine hydrobromide, as well as related novel compounds.
    Type: Application
    Filed: May 3, 2006
    Publication date: December 11, 2008
    Applicant: MEDICHEM, S.A.
    Inventors: Gabriel Tojo Suarez, Ernesto Duran Lopez, Jordi Bosch I Llado
  • Patent number: 7375231
    Abstract: The present invention relates to a novel compound of formula (IV) which is an intermediate that can be used for the preparation of pioglitazone. It also relates to a method of obtaining the novel compound (IV) starting from the natural product L-tyrosine, in which the amino group is protected in the form of aromatic imino group, and a method of obtaining pioglitazone from the said intermediate.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: May 20, 2008
    Assignee: Medichem S.A.
    Inventor: Ernesto Duran Lopez
  • Publication number: 20080064877
    Abstract: The present invention relates to a process for the preparation of 5-{4-[2-(N-methyl-N-(2-pyridyl)amino)ethoxy]benzyl-2,4-thiazolidinedione of formula (I) (Rosiglitazone), which comprises the reaction of 5-{4-[2-(N-methyl-N-(2-pyridyl)amino)ethoxy]benzylidene-2,4-thiazolidinedione of formula (II), with a 1,4-dihydropyridine of general formula (III).
    Type: Application
    Filed: November 2, 2006
    Publication date: March 13, 2008
    Applicant: Medichem S.A.
    Inventors: Ernesto Duran Lòpez, Gabriel Tojo Suárez
  • Publication number: 20070225501
    Abstract: The present invention relates to a process for the preparation of 5-{4-[2-(N-methyl-N-(2-pyridyl)amino)ethoxy]benzyl-2,4-thiazolidinedione of formula (I) Rosiglitazone), which comprises the reaction of 5-{4-[2-(N-methyl-N-(2-pyridyl)amino)ethoxyl]benzylidene-2,4-thiazolidinedione of formula (II), with a 1,4-dihydropyridine of general formula (III).
    Type: Application
    Filed: May 12, 2004
    Publication date: September 27, 2007
    Applicant: MEDICHEM S.A.
    Inventors: Ernesto Duran Lopez, Gabriel Tojo Suarez