Patents by Inventor Haleh Ahmadian

Haleh Ahmadian 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).

  • Patent number: 9187549
    Abstract: The present invention relates to Vitamin K-dependent protein compositions having a very low, or negligible, content of protein contaminants. The present invention also relates to method applicable in the preparation of such Vitamin K-dependent protein compositions. Such methods may either be used alone or in sequential combination with the purpose of reducing the relative content of protein contaminants. The present invention is particularly relevant in the preparation of compositions of coagulation factors selected from Factor X polypeptides (FX/FXa), Factor IX polypeptides (FIX/FIXa), Factor VII polypeptides (FVII/FVIIa), and the anticoagulant Protein C, in particular Factor VII polypeptides.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: November 17, 2015
    Assignee: Novo Nordisk Healthcare A/G
    Inventors: Janus Krarup, Thomas Budde Hansen, Anne Charlotte Arentsen, Daniel E. Rasmussen, Are Bogsnes, Arne Staby, Haleh Ahmadian, Susanne Bang
  • Patent number: 8067640
    Abstract: The present invention relates to a novel method for the preparation of diol intermediates having the formula (II) and/or the opposite enantiomer of an acylated diol having the formula (IV) useful for the preparation of escitalopram involving selective enzymatic acylation or deacylation.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: November 29, 2011
    Assignee: H. Lundbeck A/S
    Inventors: Naoki Taoka, Takahisa Kato, Shogo Yamamoto, Takashi Yoshida, Toshihiro Takeda, Yasuyoshi Ueda, Hans Petersen, Robert Dancer, Haleh Ahmadian, Lars O. Lyngso
  • Publication number: 20110065937
    Abstract: The present invention relates to a novel method for the preparation of diol intermediates having the formula (II) and/or the opposite enantiomer of an acylated diol having the formula (IV) useful for the preparation of escitalopram involving selective enzymatic acylation or deacylation.
    Type: Application
    Filed: May 17, 2010
    Publication date: March 17, 2011
    Applicant: H. Lundbeck A/S
    Inventors: Naoki Taoka, Takahisa Kato, Shogo Yamamoto, Takashi Yoshida, Toshihiro Takeda, Yasuyoshi Ueda, Hans Petersen, Robert Dancer, Haleh Ahmadian, Lars O. Lyngso
  • Publication number: 20110065938
    Abstract: A novel method is provided for the manufacture of escitalopram. The method comprises chromatographic separation of the enantiomers of citalopram or an intermediate in the production of citalopram using a chiral stationary phase such as Chiralpak™ AD or Chiralcel™ OD. Novel chiral intermediates for the synthesis of Escitalopram made by said method are also provided.
    Type: Application
    Filed: May 17, 2010
    Publication date: March 17, 2011
    Applicant: H. Lundbeck A/S
    Inventors: Michael B. Sommer, Ole Nielsen, Hans Petersen, Haleh Ahmadian, Henrik Pedersen, Peter Brosen, Fiona Geiser, James Lee, Geoffrey Cox, Olivier Dapremont, Christina Suteu, Sebastian P. Assenza, Shankar Hariharan, Usha Nair
  • Publication number: 20080268521
    Abstract: An improved method for producing FVII and FVIIa polypeptides is disclosed. Also provided are FVII and FVIIa compositions having low contents of auto-degradation products.
    Type: Application
    Filed: September 1, 2006
    Publication date: October 30, 2008
    Applicant: Novo Nordisk HealthCare A/G
    Inventor: Haleh Ahmadian
  • Publication number: 20080207880
    Abstract: The present invention relates to Vitamin K-dependent protein compositions having a very low, or negligible, content of protein contaminants. The present invention also relates to method applicable in the preparation of such Vitamin K-dependent protein compositions. Such methods may either be used alone or in sequential combination with the purpose of reducing the relative content of protein contaminants. The present invention is particularly relevant in the preparation of compositions of coagulation factors selected from Factor X polypeptides (FX/FXa), Factor IX polypeptides (FIX/FIXa), Factor VII polypeptides (FVII/FVIIa), and the anticoagulant Protein C, in particular Factor VII polypeptides.
    Type: Application
    Filed: December 23, 2005
    Publication date: August 28, 2008
    Applicant: Novo Nordisk HealthCare A/G
    Inventors: Janus Krarup, Thomas Budde Hansen, Anne Charlotte Arentsen, Daniel E. Rasmussen, Are Bognes, Arne Staby, Haleh Ahmadian, Susanne Bang
  • Publication number: 20070129561
    Abstract: The present invention relates to a novel method for the preparation of diol intermediates having the formula (II) and/or the opposite enantiomer of an acylated diol having the formula (IV) useful for the preparation of escitalopram involving selective enzymatic acylation or deacylation.
    Type: Application
    Filed: August 12, 2003
    Publication date: June 7, 2007
    Inventors: Naoki Taoka, Takahisa Kato, Shogo Yamamoto, Takashi Yoshida, Toshihiro Takeda, Yasuyoshi Ueda, Hans Petersen, Robert Dancer, Haleh Ahmadian, Lars Lyngso
  • Publication number: 20050154051
    Abstract: The invention relates to a method for the preparation of escitalopram by cyanation of optically active intermediates of the formulas (III) and (II) below, and the preparation of such intermediates by optical resolution.
    Type: Application
    Filed: December 9, 2002
    Publication date: July 14, 2005
    Applicant: H. Lundbeck A/S
    Inventors: Haleh Ahmadian, Hans Petersen
  • Publication number: 20050065207
    Abstract: A novel method is provided for the manufacture of escitalopram. The method comprises chromatographic separation of the enantiomers of citalopram or an intermediate in the production of citalopram using a chiral stationary phase such as Chiralpak™ or Chiralcel™ OD. Novel chiral intermediates for the synthesis of Escitalopram made by said method are also provided.
    Type: Application
    Filed: July 12, 2002
    Publication date: March 24, 2005
    Inventors: Michael Sommer, Ole Nielsen, Hans Petersen, Haleh Ahmadian, Henrik Pedersen, Peter Brosen, Fiona Geiser, James Lee, Geoffrey Cox, Olivier Dapremont, Christina Suteu, Sebastian Assenza, Shankar Hariharan, Usha Nair
  • Patent number: 6864379
    Abstract: Methods for manufacture of citalopram through stepwise alkylation of 5-substituted 1-(4-fluorophenyl)-1,3-dihydroisobenzofurans are disclosed.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: March 8, 2005
    Assignee: H. Lundbeck A/S
    Inventors: Hans Petersen, Haleh Ahmadian
  • Publication number: 20050020670
    Abstract: Methods for manufacture of citalopram through stepwise alkylation of 5-substituted 1-(4-fluorophenyl)-1,3-dihydroisobenzofurans are disclosed.
    Type: Application
    Filed: August 13, 2004
    Publication date: January 27, 2005
    Applicant: H. Lundbeck A/S
    Inventors: Hans Petersen, Haleh Ahmadian
  • Patent number: 6768011
    Abstract: The invention relates to a method for the preparation of citalopram comprising reaction of a compound of formula II with a compound having the formula wherein R is halogen or —O—SO2—X, wherein X is alkyl, alkenyl, alkynyl or optionally alkyl substituted aryl or aralkyl, and R1 is dimethylamino, halogen, —O—SO2—X wherein X is as defined above, provided that R is not halogen when R1 is dimethylamino; and if R1 is dimethylamino followed by isolation of citalopram base or a pharmaceutically acceptable acid addition salt thereof, and if R1 is halogen or —O—SO2—X, wherein X is as defined above, followed by conversion of the resulting compound of formula wherein R2 is halogen or a group of formula —O—SO2—X wherein X is as defined above to citalopram, followed by isolation of citalopram base or a pharmaceutically acceptable acid addition salt thereof.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: July 27, 2004
    Assignee: H. Lundbeck A/S
    Inventors: Michael Harold Rock, Haleh Ahmadian
  • Publication number: 20030092761
    Abstract: The invention relates to a method for the preparation of citalopram comprising reaction of a compound of formula II 1
    Type: Application
    Filed: August 29, 2002
    Publication date: May 15, 2003
    Applicant: H. Lundbeck A/S
    Inventors: Michael Harold Rock, Haleh Ahmadian
  • Publication number: 20030083509
    Abstract: Methods for manufacture of citalopram through stepwise alkylation of 5-substituted 1-(4-fluorophenyl)-1,3-dihydroisobenzofurans are disclosed.
    Type: Application
    Filed: September 10, 2002
    Publication date: May 1, 2003
    Applicant: H. Lundbeck A/S
    Inventors: Hans Petersen, Haleh Ahmadian
  • Patent number: 6509483
    Abstract: A method for the preparation of citalopram comprising reacting 5-carboxyphthalide successively with a Grignard reagent of 4-halo-fluorophenyl and a Grignard reagent of 3-halo-N,N-dimethyl-propylamine and then effecting ring closure of the resulting compound of Formula XI to a compound of Formula IV followed by conversion of the compound of Formula IV into citalopram is disclosed. Methods for the manufacture and conversion of the compound of Formula IV are also disclosed.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: January 21, 2003
    Assignee: H. Lundbeck A/S
    Inventors: Hans Petersen, Haleh Ahmadian, Robert Dancer
  • Patent number: 6426422
    Abstract: Disclosed is a method for the preparation of citalopram comprising conversion of a compound of Formula VIII wherein Z is halogen, to a compound of Formula IV followed by conversion of the compound of Formula IV into citalopram. Methods for the preparation of the compound of Formula IV are also disclosed.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: July 30, 2002
    Assignee: H. Lundbeck A/S
    Inventors: Hans Petersen, Haleh Ahmadian
  • Patent number: 6420574
    Abstract: The present invention relates to a method for the preparation of citalopram comprising reaction a compound of formula (I) with a compound having the formula wherein X is a suitable leaving group and R is —CH2—O—Pg, —CH2—NPg1Pg2, —CO—N(CH3)2, —CH(OR1)(OR2), —C(OR4)(OR5)(OR6), —COOR3, —CH2—CO—NH2, —CH═CHR7 and —CONHR8, wherein Pg is a protection group for an alcohol group, Pg1 and Pg2 are protection groups for an amino group, R1 and R2 are independently selected from alkyl, alkenyl, alkynyl and optionally alkyl substituted aryl or aralkyl groups or R1 and R2 together form a chain of 2 to 4 carbon atoms, each of R3, R4, R5, R6 and R7 are independently selected from alkyl, alkenyl, alkynyl and optionally alkyl substituted aryl or aralkyl and R8 is hydrogen or methyl; to form a compound of the formula wherein R is as defined above; followed by conversion of the R gro
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: July 16, 2002
    Assignee: H. Lundbeck A/S
    Inventors: Hans Petersen, Michael Harold Rock, Haleh Ahmadian
  • Publication number: 20020025982
    Abstract: Disclosed is a method for the preparation of citalopram comprising conversion of a compound of Formula VIII 1
    Type: Application
    Filed: August 14, 2001
    Publication date: February 28, 2002
    Applicant: H. Lundbeck A/S
    Inventors: Hans Petersen, Haleh Ahmadian
  • Publication number: 20020026062
    Abstract: A method for the preparation of citalopram comprising reacting 5-carboxyphthalide successively with a Grignard reagent of 4-halo-fluorophenyl and a Grignard reagent of 3-halo-N,N-dimethyl-propylamine and then effecting ring closure of the resulting compound of Formula XI 1
    Type: Application
    Filed: August 14, 2001
    Publication date: February 28, 2002
    Applicant: H. Lundbeck A/S
    Inventors: Hans Petersen, Haleh Ahmadian, Robert Dancer
  • Publication number: 20010027256
    Abstract: The present invention relates to a method for the preparation of citalopram comprising reaction a compound of formula (I) 1
    Type: Application
    Filed: February 26, 2001
    Publication date: October 4, 2001
    Applicant: H. Lundbeck A/S
    Inventors: Hans Petersen, Michael Harold Rock, Haleh Ahmadian