Patents by Inventor Ulf Larsson

Ulf Larsson 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: 7381828
    Abstract: The present invention relates to a pyrimidine compound (I) useful as a pharmaceutical intermediate, to a process for preparing said pyrimidine compound, to intermediates used in said process, and to the use of said pyrimidine compound in the preparation of pharmaceuticals.
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: June 3, 2008
    Assignee: AstraZēneca AB
    Inventors: Ulf Larsson, Mattias Magnusson, Tibor Musil, Andreas Palmgren
  • Publication number: 20070219371
    Abstract: The present invention provides a process for the preparation of a compound of formula (I): wherein X is halogen; Y is ZR1; Z is oxygen or sulphur; and R1 is C1-6 alkyl, C1-6 haloalkyl or C3-7 cycloalkyl; the process comprising either: a. hydrogenating a compound of formula (II): with a suitable transition metal catalyst in a C1-6 aliphatic alcohol, an ether, an ester or a hydrocarbon as solvent; or, b. conducting a one-pot hydrogenation of a compound of formula (III): wherein R2 is phenyl optionally substituted by chloro, C1-6 alkyl, C1-6 alkoxy or (C1-6 alkyl)2N; i. firstly at about 20° C. to form a compound of formula (IV): ii. and then at about 40° C.; both steps (i) and (ii) being carried out in the presence of a suitable catalyst and in the presence of a suitable solvent.
    Type: Application
    Filed: March 29, 2005
    Publication date: September 20, 2007
    Applicant: ASTRAZENECA AB
    Inventors: Ulf Larsson, Kajsa Radevik
  • Publication number: 20070049755
    Abstract: The present invention relates to a pyrimidine compound (I) useful as a pharmaceutical intermediate, to a process for preparing said pyrimidine compound, to intermediates used in said process, and to the use of said pyrimidine compound in the preparation of pharmaceuticals.
    Type: Application
    Filed: November 2, 2006
    Publication date: March 1, 2007
    Applicant: Astrazeneca AB
    Inventors: Ulf Larsson, Mattias Magnusson, Tibor Musil, Andreas Palmgren
  • Publication number: 20060258879
    Abstract: The invention relates to a novel process for the preparation of certain cyclopropyl carboxylic acid esters and other cyclopropyl carboxylic acid derivatives; a novel process for the preparation of dimethylsulfoxonium methylide and dimethylsulfonium methylide; to the use of certain cyclopropyl carboxylic acid esters in a process for the preparation of intermediates that can be used in the synthesis of pharmaceutically active entities; and to certain intermediates provided by these processes.
    Type: Application
    Filed: July 17, 2006
    Publication date: November 16, 2006
    Applicant: AstraZeneca AB
    Inventors: Adrian Clark, Elfyn Jones, Ulf Larsson, Anna Minidis
  • Patent number: 7122695
    Abstract: The invention relates to a novel process for the preparation of certain cyclopropyl carboxylic acid esters and other cyclopropyl carboxylic acid derivatives; a novel process for the preparation of dimethylsulfoxonium methylide and dimethylsulfonium methylide; to the use of certain cyclopropyl carboxylic acid esters in a process for the preparation of intermediates that can be used in the synthesis of pharmaceutically active entities; and to certain intermediates provided by these processes.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: October 17, 2006
    Assignee: AstraZeneca AB
    Inventors: Adrian Clark, Elfyn Jones, Ulf Larsson, Anna Minidis
  • Patent number: 7067663
    Abstract: Pyrimidine compound (I) useful as a pharmaceutical intermediate, a process for preparing the pyrimidine compound (I), to intermediates used in the process, and use of the pyrimidine compound (I) in the preparation of pharmaceuticals. The process comprises hydrogenating a compound of formula (IV): wherein Ar is a phenyl optionally substituted by halogen, C1-4 alkyl or C1-4 alkoxy; to give a compound of formula (II): and reacting the compound of formula (II) with a salt of a compound of formula (III): to provide the compound of formula (I).
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: June 27, 2006
    Assignee: AstraZeneca AB
    Inventors: Ulf Larsson, Mattias Magnusson, Tibor Musil, Andreas Palmgren
  • Publication number: 20060041132
    Abstract: The present invention relates to a pyrimidine compound (I) useful as a pharmaceutical intermediate, to a process for preparing said pyrimidine compound, to intermediates used in said process, and to the use of said pyrimidine compound in the preparation of pharmaceuticals.
    Type: Application
    Filed: October 24, 2005
    Publication date: February 23, 2006
    Applicant: AstraZeneca AB
    Inventors: Ulf Larsson, Mattias Magnusson, Tibor Musil, Andreas Palmgren
  • Publication number: 20050190775
    Abstract: An access system (ACC1) for relating communication service providers (SP1-SPn) and application service providers (AS) to users (U11-Um1) includes an edge access server (EAS) connecting the service providers and penults (P1-Pk) connecting the users. User devices (UD11-UD14) are connected via VLAN:s to user port (UP11) on the penult. Service agents (SA1-San, ASA), an administrator (AD1), a broadcast handler (BH1) and handlers (H1-Hk) in the penults form a handling system. A user (U11) decision including VLAN, service (SP1) and user port (UP11) is sent to the administrator (AD1), which dynamically allocates to the relevant service agent (SA1) a MAC address, defining a relation (r11). A user device (UD11) broadcasts an ARP request to get the MAC address to teh service agent (SA1). A service access relation to the application service provider (AS) is provided such that it can be reached by users having relations (R11, R21) to the communication service providers (SP1-SPn).
    Type: Application
    Filed: February 7, 2003
    Publication date: September 1, 2005
    Inventors: Ingmar Tonnby, Ulf Larsson
  • Publication number: 20050163131
    Abstract: An access system (ACC1) for relating service providers (SP1-SPn) to users (U11-Um1) includes an edge access server (EAS) connecting the service providers and penults (P1-Pk) connecting the users. User devices (UD11-UD14) are connected via VLAN:s to a user ports (UP11) on the penult. The edge access server has service agents (SA1-SAn), an administrator (AD1) and a broadcast handler (BH1), which forms a handling system together with handlers (H1-Hk) in the penults. A user (U11) decision including VLAN, service (SP1) and user port (UP11) is sent to the administrator (AD1), which dynamically allocates to the relevant service agent (SA1) a MAC address, defining a relation (R11). A user device (UD11) broadcasts a DHCP request unicasted together with user port (UP11) to the braoadcast handler (BH1). The user device (UD11) gets its IP address and IP address to the service agent (SA1). The device (UD11) broadcasts an ARP request which is unicasted by the penult (P1), to get the MAC address to the service agent (SA1).
    Type: Application
    Filed: January 7, 2003
    Publication date: July 28, 2005
    Inventors: Ingmar Tonnby, Ulf Larsson, Tom Rindborg, Joacim Halen, Eric Hjelmestam, Egbert-Jan Sol
  • Publication number: 20050160174
    Abstract: An access system (ACC1) for relating service providers (SP1-SPn) to users (U11-Um1) includes an edge access server (EAS) connecting the service providers and penults (P1-Pk) connecting the users. User devices (UD11-UD14) are connected via VLAN:s to a user port (UP11) on the penult. The edge access server has service agents (SA1-SAn), an administrator (AD1) and a broadcast handler (BH1), which forms a handling system together with handlers (H1-Hk) in the penults. A user (U11) decision including VLAN, service (SP1) and user port (UP11) is sent to the administrator (AD1), which dynamically allocates to the relevant service agent (SA1) a MAC address, defining a relationship (R11). A user device (UD11) broadcasts a DHCP request unicasted together with user port (UP11) to the broadcast handler (BH1). The user device (UD11) gets its IP address and IP address to the service agent (SA1).
    Type: Application
    Filed: February 8, 2002
    Publication date: July 21, 2005
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON
    Inventors: Tonnby Ingmar, Ulf Larsson
  • Patent number: 6689911
    Abstract: An integrated process for preparing &agr;-(2,4-disulfophenyl)-N-tert-butylnitrone and its salts is disclosed in which N-tert-butylhydroxylamine acid addition salt is incompletely neutralised so as to leave catalytic amounts of acid and the neutralisation product is condensed with an appropriate aldehyde.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: February 10, 2004
    Assignees: Centaur Pharmaceuticals, Inc., AstraZeneca AB
    Inventors: Henry Kruk, John McGinley, Sergei Pouhov, John Vajda, Allan Wilcox, Jörgen Blixt, Ulf Larsson
  • Publication number: 20030148888
    Abstract: The present invention relates to a pyrimidine compound (I) useful as a pharmaceutical intermediate, to a process for preparing said pyrimidine compound, to intermediates used in said process, and to the use of said pyrimidine compound in the preparation of pharmaceuticals.
    Type: Application
    Filed: November 7, 2002
    Publication date: August 7, 2003
    Inventors: Ulf Larsson, Mattias Magnusson, Tibor Musil, Andreas Palmgren
  • Publication number: 20030120105
    Abstract: The invention relates to a novel process for the preparation of certain cyclopropyl carboxylic acid esters and other cyclopropyl carboxylic acid derivatives; a novel process for the preparation of dimethylsulfoxonium methylide and dimethylsulfonium methylide; to the use of certain cyclopropyl carboxylic acid esters in a process for the preparation of intermediates that can be used in the synthesis of pharmaceutically active entities; and to certain intermediates provided by these processes.
    Type: Application
    Filed: November 7, 2002
    Publication date: June 26, 2003
    Inventors: Adrian Clark, Elfyn Jones, Ulf Larsson, Anna Minidis
  • Publication number: 20030069442
    Abstract: An integrated process for preparing &agr;-(2,4-disulfophenyl)-N-tert-butylnitrone and its salts is disclosed in which N-tert-butylhydroxylamine acid addition salt is incompletely neutralised so as to leave catalytic amounts of acid and the neutralisation product is condensed with an appropriate aldehyde.
    Type: Application
    Filed: April 5, 2001
    Publication date: April 10, 2003
    Inventors: Henry Kruk, John McGinley, Sergei Pouhov, John Vajda, Allan Wilcox, Jorgen Blixt, Ulf Larsson
  • Patent number: 6235792
    Abstract: The present invention relates to a novel monophosphate salt of isopropyl-methyl-[2-(3-n-propoxyphenoxy)ethyl]amine. Moreover, the present invention also relates to a process for the preparation of the monophosphate salt of isopropyl-methyl-[2-(3-n-propoxyphenoxy)ethyl]amine as well as a pharmaceutical formulation containing it and its use in medicine.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: May 22, 2001
    Assignee: Astra AB
    Inventors: Karol Horvath, Ulf Larsson, Rune Sandberg