Patents by Inventor Valery Fokin

Valery Fokin 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: 20150031895
    Abstract: A copper catalyzed click chemistry ligation process is employed to bind azides and terminal acetylenes to provide 1,4-disubstituted 1,2,3-triazole triazoles. The process comprises contacting an organic azide and a terminal alkyne with a source of reactive Cu(I) ion in human blood plasma to form by cycloaddition a 1,4-disubstituted 1,2,3-triazole. The source of reactive Cu(I) ion can be, for example, a Cu(I) salt, Cu(II) ion in the presence of a reducing agent, or copper metal.
    Type: Application
    Filed: October 7, 2014
    Publication date: January 29, 2015
    Applicant: THE SCRIPPS RESEARCH INSTITUTE
    Inventors: K. Barry SHARPLESS, Valery FOKIN, Vsevold A. ROSTOVTSEV, Luke GREEN, Fahmi HIMO
  • Patent number: 8877939
    Abstract: A copper catalyzed click chemistry ligation process is employed to bind azides and terminal acetylenes to provide 1,4-disubstituted 1,2,3-triazole triazoles. The process comprises contacting an organic azide and a terminal alkyne with a source of reactive Cu(I) ion in human blood plasma to form by cycloaddition a 1,4-disubstituted 1,2,3-triazole. The source of reactive Cu(I) ion can be, for example, a Cu(I) salt, Cu(II) ion in the presence of a reducing agent, or copper metal.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: November 4, 2014
    Assignee: The Scripps Research Institute
    Inventors: K. Barry Sharpless, Valery Fokin, Vsevold A. Rostovtsev, Luke Green, Fahmi Himo
  • Publication number: 20140066632
    Abstract: A copper catalyzed click chemistry ligation process is employed to bind azides and terminal acetylenes to provide 1,4-disubstituted 1,2,3-triazole triazoles. The process comprises contacting an organic azide and a terminal alkyne with a source of reactive Cu(I) ion in human blood plasma to form by cycloaddition a 1,4-disubstituted 1,2,3-triazole. The source of reactive Cu(I) ion can be, for example, a Cu(I) salt, Cu(II) ion in the presence of a reducing agent, or copper metal.
    Type: Application
    Filed: November 12, 2013
    Publication date: March 6, 2014
    Applicant: The Scripps Research Institute
    Inventors: K. Barry SHARPLESS, Valery FOKIN, Vsevold A. ROSTOVTSEV, Luke GREEN, Fahmi HIMO
  • Patent number: 8580970
    Abstract: A copper catalyzed click chemistry ligation process is employed to bind azides and terminal acetylenes to provide 1,4-disubstituted 1,2,3-triazole triazoles. The process comprises contacting an organic azide and a terminal alkyne with a source of reactive Cu(I) ion for a time sufficient to form by cycloaddition a 1,4-disubstituted 1,2,3-triazole. The source of reactive Cu(I) ion can be, for example, a Cu(I) salt or copper metal. The process is preferably carried out in a solvent, such as an aqueous alcohol. Optionally, the process can be performed in a solvent that comprises a ligand for Cu(I) and an amine.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: November 12, 2013
    Assignee: The Scripps Research Institute
    Inventors: K. Barry Sharpless, Valery Fokin, Vsevold V. Rostovtsev, Luke Green, Fahmi Himo
  • Patent number: 8372986
    Abstract: A convenient process for the regioselective synthesis of 1,5-disubstituted 1,2,3-triazoles and 1,4,5-trisubstituted 1,2,3-triazoles from organic azides and alkynes employs catalytic ruthenium.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: February 12, 2013
    Assignees: The Scripps Research Institute, The Hong Kong University of Science and Technology
    Inventors: Valery Fokin, Guocheng Jia, K. Barry Sharpless
  • Publication number: 20120165542
    Abstract: A copper catalyzed click chemistry ligation process is employed to bind azides and terminal acetylenes to provide 1,4-disubstituted 1,2,3-triazole triazoles. The process comprises contacting an organic azide and a terminal alkyne with a source of reactive Cu(I) ion for a time sufficient to form by cycloaddition a 1,4-disubstituted 1,2,3-triazole. The source of reactive Cu(I) ion can be, for example, a Cu(I) salt or copper metal. The process is preferably carried out in a solvent, such as an aqueous alcohol. Optionally, the process can be performed in a solvent that comprises a ligand for Cu(I) and an amine.
    Type: Application
    Filed: March 5, 2012
    Publication date: June 28, 2012
    Applicant: THE SCRIPPS RESEARCH INSTITUTE
    Inventors: K. Barry SHARPLESS, Valery FOKIN, Vsevold A. ROSTOVTSEV, Luke GREEN, Fahmi HIMO
  • Patent number: 8129542
    Abstract: A copper catalyzed click chemistry ligation process is employed to bind azides and terminal acetylenes to provide 1,4-disubstituted 1,2,3-triazole triazoles. The process comprises contacting an organic azide and a terminal alkyne with a source of reactive Cu(I) ion for a time sufficient to form by cycloaddition a 1,4-disubstituted 1,2,3-triazole. The source of reactive Cu(I) ion can be, for example, a Cu(I) salt or copper metal. The process is preferably carried out in a solvent, such as an aqueous alcohol. Optionally, the process can be performed in a solvent that comprises a ligand for Cu(I) and an amine.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: March 6, 2012
    Assignee: The Scripps Research Institute
    Inventors: K. Barry Sharpless, Valery Fokin, Vsevold V. Rostovtsev, Luke Green, Fahmi Himo
  • Patent number: 8101238
    Abstract: Adhesive polymers are formed when polyvalent azides and alkynes are assembled into crosslinked polymer networks by copper-catalyzed 1,3-dipolar cycloaddition. The condensation polymerization is efficiently promoted by Cu ions either leached from the metal surface or added to the monomer mixture, and strong interactions with metal surfaces are provided by the multiple triazole binding elements produced. The adhesive polymers may be formed either as adhesive polymer coatings or as adhesive polymer cement.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: January 24, 2012
    Assignee: The Scripps Research Institute
    Inventors: Valery Fokin, M. G. Finn, K. Barry Sharpless
  • Publication number: 20110105764
    Abstract: A copper catalyzed click chemistry ligation process is employed to bind azides and terminal acetylenes to provide 1,4-disubstituted 1,2,3-triazole triazoles. The process comprises contacting an organic azide and a terminal alkyne with a source of reactive Cu(I) ion for a time sufficient to form by cycloaddition a 1,4-disubstituted 1,2,3-triazole. The source of reactive Cu(I) ion can be, for example, a Cu(I) salt or copper metal. The process is preferably carried out in a solvent, such as an aqueous alcohol. Optionally, the process can be performed in a solvent that comprises a ligand for Cu(I) and an amine.
    Type: Application
    Filed: July 26, 2010
    Publication date: May 5, 2011
    Applicant: The Scripps Research Institute
    Inventors: K. Barry Sharpless, Valery Fokin, Vsevold A. Rostovtsev, Luke Green, Fahmi Himo
  • Publication number: 20100286405
    Abstract: A convenient process for the regioselective synthesis of 1,5-disubstituted 1,2,3-triazoles and 1,4,5-trisubstituted 1,2,3-triazoles from organic azides and alkynes employs catalytic ruthenium.
    Type: Application
    Filed: September 29, 2006
    Publication date: November 11, 2010
    Inventors: Valery Fokin, Guocheng Jia, K. Barry Sharpless
  • Patent number: 7763736
    Abstract: A copper catalyzed click chemistry ligation process is employed to bind azides and terminal acetylenes to provide 1,4-disubstituted 1,2,3-triazole triazoles. The process comprises contacting an organic azide and a terminal alkyne with a source of reactive Cu(I) ion for a time sufficient to form by cycloaddition a 1,4-disubstituted 1,2,3-triazole. The source of reactive Cu(I) ion can be, for example, a Cu(I) salt or copper metal. The process is preferably carried out in a solvent, such as an aqueous alcohol. Optionally, the process can be performed in a solvent that comprises a ligand for Cu(I) and an amine.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: July 27, 2010
    Assignee: The Scripps Research Institute
    Inventors: K. Barry Sharpless, Valery Fokin, Vsevold V. Rostovtsev, Luke Green, Fahmi Himo
  • Publication number: 20090306310
    Abstract: A library of functionalized dendritic macromolecules was prepared in extremely high yields using no protecting group strategies and with only minimal purification steps through the use of copper(I)-catalyzed 1,3-dipolar cycloaddition of azides and terminal acetylenes.
    Type: Application
    Filed: July 18, 2006
    Publication date: December 10, 2009
    Applicant: The Scripps Research Institute
    Inventors: Peng Wu, Valery Fokin, K. Barry Sharpless
  • Publication number: 20090069561
    Abstract: The high efficiency and fidelity of click chemistry permits a large number of diverse dendrimers encompassing a wide variety of functionalities at the chain ends, repeat units, and/or core to be prepared. Almost quantitative yields were obtained during the synthesis. In some cases, filtration or solvent extraction was the only method required for purification. These features represent a significant advancement in dendrimer chemistry and demonstrate an evolving synergy between organic chemistry and functional materials.
    Type: Application
    Filed: June 30, 2005
    Publication date: March 12, 2009
    Applicant: The Scripps Research Institute
    Inventors: Valery Fokin, K. Barry Sharpless, Peng Wu, Alina Feldman
  • Publication number: 20080311412
    Abstract: Adhesive polymers are formed when polyvalent azides and alkynes are assembled into crosslinked polymer networks by copper-catalyzed 1,3-dipolar cycloaddition. The condensation polymerization is efficiently promoted by Cu ions either leached from the metal surface or added to the monomer mixture, and strong interactions with metal surfaces are provided by the multiple triazole binding elements produced. The adhesive polymers may be formed either as adhesive polymer coatings or as adhesive polymer cement.
    Type: Application
    Filed: July 22, 2005
    Publication date: December 18, 2008
    Applicant: THE SCRIPPS RESEARCH INSTITUTE
    Inventors: Valery Fokin, M. G. Finn, K. Barry Sharpless
  • Publication number: 20080214831
    Abstract: A copper catalyzed click chemistry ligation process is employed to bind azides and terminal acetylenes to provide 1,4-disubstituted 1,2,3-triazole triazoles. The process comprises contacting an organic azide and a terminal alkyne with a source of reactive Cu(I) ion for a time sufficient to form by cycloaddition a 1,4-disubstituted 1,2,3-triazole. The source of reactive Cu(I) ion can be, for example, a Cu(I) salt or copper metal. The process is preferably carried out in a solvent, such as an aqueous alcohol. Optionally, the process can be performed in a solvent that comprises a ligand for Cu(I) and an amine.
    Type: Application
    Filed: May 9, 2008
    Publication date: September 4, 2008
    Inventors: K. Barry Sharpless, Valery Fokin, Vsevold A. Rostovtsev, Luke Green, Fahmi Himo
  • Patent number: 7375234
    Abstract: A metal catalyzed click chemistry ligation process is employed to bind azides and terminal acetylenes to give triazoles. In many instances, the reaction sequence regiospecifically ligates azides and terminal acetylenes to give only 1,4-disubstituted [1,2,3]-triazoles.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: May 20, 2008
    Assignee: The Scripps Research Institute
    Inventors: K. Barry Sharpless, Valery Fokin, Vsevold A. Rostovtsev, Luke Green, Fahmi Himo
  • Publication number: 20070060658
    Abstract: Self-assembled gels were modified by the installation of azide and alkyne groups on the gelator and reaction with complementary reagents by the catalyzed azide-alkyne cycloaddition reaction. This is the first example of the use of a “click” reaction in such a supramolecular environment, and a new strategy for tuning the properties of gelled materials.
    Type: Application
    Filed: August 21, 2006
    Publication date: March 15, 2007
    Inventors: David Diaz, M. Finn, Valery Fokin
  • Publication number: 20070020620
    Abstract: Compositions and methods are provided for coupling a plurality of compounds to a scaffold. Compositions and methods are further provided for catalyzing a reaction between at least one terminal alkyne moiety and at least one azide moiety, wherein one moiety is attached to the compound and the other moiety is attached to the scaffold, forming at least one triazole thereby.
    Type: Application
    Filed: July 13, 2006
    Publication date: January 25, 2007
    Inventors: M.G. Finn, Sayam Gupta, Karl Sharpless, Valery Fokin
  • Publication number: 20050222427
    Abstract: A metal catalyzed click chemistry ligation process is employed to bind azides and terminal acetylenes to give triazoles. In many instances, the reaction sequence regiospecifically ligates azides and terminal acetylenes to give only 1,4-disubstituted [1,2,3]-triazoles.
    Type: Application
    Filed: May 30, 2003
    Publication date: October 6, 2005
    Applicant: THE SCRIPPS RESEARCH INSTITUTE
    Inventors: K Sharpless, Valery Fokin, Vsevold Rostovtsev, Luke Green, Fahmi Himo
  • Patent number: 6852874
    Abstract: A process for catalyzing asymmetric dihydroxylations of olefins employs an Os(VI) complex as a catalytic intermediate in the formation of chiral vicinal diol products. The process requires a chiral bidentate ligand that favors diol formation in the “second cycle” of asymmetric dihydroxylation.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: February 8, 2005
    Assignee: The Scripps Research Institute
    Inventors: K. Barry Sharpless, Malin Andersson, Robert Epple, Valery Fokin