Patents by Inventor Kajsa Radevik

Kajsa Radevik 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: 20100324289
    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 cloalkyl; the process comprising either: hydrogenating a compound of formula (II); with a suitable transition metal catalyst in a C1-6 aliphatic alcohol, an ether, an hydrocarbon as solvent; or, 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; firstly at about 20° C. to form a compound of formula (IV): 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: August 31, 2010
    Publication date: December 23, 2010
    Applicant: AstraZeneca AB
    Inventors: Ulf Larsson, Kajsa Rådevik
  • Patent number: 7799914
    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: Grant
    Filed: March 29, 2005
    Date of Patent: September 21, 2010
    Assignee: AstraZeneca AB
    Inventors: Ulf Larsson, Kajsa Radevik
  • 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