Patents by Inventor Patricia Poirier

Patricia Poirier 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 producing a solid form of abiraterone acetate
    Patent number: 9920089
    Abstract: The present invention relates to a process for the preparation of 17-substituted steroids and, more particularly, to an improved method of preparing micro size abiraterone or derivatives thereof in high yield and purity by means of a spherical agglomeration process.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: March 20, 2018
    Assignee: ZACH SYSTEM
    Inventors: Patricia Poirier, Yvon Derrien, Massimiliano Forcato, Livius Cotarca, Pierrick Morice
  • Process for preparing 17-substituted steroids
    Patent number: 9353145
    Abstract: The present invention relates to a process for the preparation of 17-substituted steroids and, more particularly, to an improved method of synthesizing abiraterone or derivatives thereof in high yield and purity by means of a key 3-formate intermediate.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: May 31, 2016
    Assignee: ZACH SYSTEM
    Inventors: Yvon Derrien, Patricia Poirier, Massimiliano Forcato, Tony Pintus, Livius Cotarca, Sebastien Meunier, Laurence Graindorge
  • PROCESS FOR PRODUCING A SOLID FORM OF ABIRATERONE ACETATE
    Publication number: 20160083416
    Abstract: The present invention relates to a process for the preparation of 17-substituted steroids and, more particularly, to an improved method of preparing micro size abiraterone or derivatives thereof in high yield and purity by means of a spherical agglomeration process.
    Type: Application
    Filed: April 11, 2014
    Publication date: March 24, 2016
    Applicant: ZACH SYSTEM
    Inventors: Patricia POIRIER, Yvon DERRIEN, Massimiliano FORCATO, Livius COTARCA, Pierrick MORICE
  • PROCESS FOR PREPARING 17-SUBSTITUTED STEROIDS
    Publication number: 20140256932
    Abstract: The present invention relates to a process for the preparation of 17-substituted steroids and, more particularly, to an improved method of synthesizing abiraterone or derivatives thereof in high yield and purity by means of a key 3-formate intermediate.
    Type: Application
    Filed: October 9, 2012
    Publication date: September 11, 2014
    Applicant: ZACH SYSTEM
    Inventors: Yvon Derrien, Patricia Poirier, Massimiliano Forcato, Tony Pintus, Livius Cotarca, Sebastien Meunier, Laurence Graindorge
  • In situ or one-pot hydrogenation and reductive amination process
    Patent number: 7462742
    Abstract: An in situ or one-pot process for the preparation of the compounds of formula (I) uses a compound of general formula (I): and includes: a) the hydrogenation of a nitrile group of the compound of general formula (II): in which R1 to R4 are especially H or alkyl and n varies from 0 to 4, in the presence of a hydrogenation catalyst, a methylating agent and an organic acid as solvent, and at a temperature Ta below the initiation temperature of a reductive amination reaction, to give a primary amine from the nitrile group; and b) the reductive amination of the primary amine in the presence of hydrogen, at a temperature Tb above Ta, to give the dimethylated amine of general formula (I) by activation of the methylating age.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: December 9, 2008
    Assignee: Zach System
    Inventors: Alain Burgos, Jacques Tonnel, Valéry Dambrin, Denis Lucet, Patricia Poirier
  • In situ or one-pot hydrogenation and reductive amination process
    Publication number: 20080125606
    Abstract: An in situ or one-pot process for the preparation of the compounds of formula (I) uses a compound of general formula (I): and includes: a) the hydrogenation of a nitrile group of the compound of general formula (II): in which R1 to R4 are especially H or alkyl and n varies from 0 to 4, in the presence of a hydrogenation catalyst, a methylating agent and an organic acid as solvent, and at a temperature Ta below the initiation temperature of a reductive amination reaction, to give a primary amine from the nitrile group; and b) the reductive amination of the primary amine in the presence of hydrogen, at a temperature Tb above Ta, to give the dimethylated amine of general formula (I) by activation of the methylating age.
    Type: Application
    Filed: January 23, 2007
    Publication date: May 29, 2008
    Applicant: PPG-SIPSY
    Inventors: Alain Burgos, Jacques Tonnel, Valerie Dambrin, Denis Lucet, Patricia Poirier