Patents by Inventor Anita Pietraszek

Anita Pietraszek 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).

  • PROCESS FOR PREPARATION OF PROSTAGLANDIN F2 ALPHA ANALOGUES
    Publication number: 20150031898
    Abstract: A convergent synthesis of the prostaglandin F2? analogues, travoprost and bimatoprost, was developed employing Julia-Lythgoe olefination of the structurally advanced phenylsulfone with an enantiomerically pure aldehyde ?-chain synthon. The novel convergent strategy allows the synthesis of a whole series of prostaglandin analogues of high purity from a common and structurally advanced prostaglandin intermediate.
    Type: Application
    Filed: March 8, 2013
    Publication date: January 29, 2015
    Applicant: INSTYTUT FARMACEUTYCZNY
    Inventors: Iwona Dams, Andrzej Kutner, Michal Chodynski, Malgorzata Krupa, Anita Pietraszek, Marta Zezula, Piotr Cmoch, Monika Kosinska
  • NEW SYNTHONES FOR PREPARATION OF 19-NOR VITAMIN D DERIVATIVES
    Publication number: 20130006003
    Abstract: The present invention discloses the synthone of Formula (I), wherein R1 and R2 are the same or different and represent independently hydrogen atom or hydroxyl protecting group, and its use for preparation of 19-nor vitamin D derivatives of general Formula (IV), wherein represents single or double bond, p represents an integer 0 to 3, R1 and R2 represent independently hydrogen atom or hydroxyl protecting group, R3 represents hydrogen atom, CH3 or hydroxyl group, R4, R5 and R6 represent independently hydrogen atom, C1-C3-alkyl or hydroxyl group or two of R4, R5 and R6 substituents altogether form cyclopropyl group, in particular for preparation of paricalcitol.
    Type: Application
    Filed: August 7, 2010
    Publication date: January 3, 2013
    Applicant: INSTYTUT FARMACEUTYCZNY
    Inventors: Michal Chodynski, Malgorzata Krupa, Krzysztof Krajewski, Marek Kubiszewski, Andrzej Kutner, Anita Pietraszek, Kinga Trzcinska