Patents Assigned to X-Chem, Inc.
  • Patent number: 11674135
    Abstract: The present invention relates to complexes of oligonucleotide-encoded libraries and methods of tagging and using such libraries. In particular, the oligonucleotides and methods can include complexes having at least one linkage for which a polymerase has reduced ability to read or translocate through.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: June 13, 2023
    Assignee: X-Chem, Inc.
    Inventors: Anthony D. Keefe, Alexander Litovchick, Matthew Clark
  • Publication number: 20220275362
    Abstract: The present disclosure relates to methods of encoding pre-existing compounds with oligonucleotide tags. In particular, libraries of pre-existing compounds are tagged with oligonucleotides in order to encode identifying information, thereby improving methods of screening and identifying compounds having a desired property.
    Type: Application
    Filed: July 24, 2020
    Publication date: September 1, 2022
    Applicant: X-Chem, Inc.
    Inventors: Anthony D. KEEFE, Zhen CHEN
  • Patent number: 11168321
    Abstract: The present invention features a number of methods for identifying one or more compounds that bind to a biological target. The methods include synthesizing a library of compounds, wherein the compounds contain a functional moiety having one or more diversity positions. The functional moiety of the compounds is operatively linked to an initiator oligonucleotide that identifies the structure of the functional moiety.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: November 9, 2021
    Assignee: X-Chem, Inc.
    Inventor: Richard W. Wagner
  • Patent number: 10865409
    Abstract: The present invention relates to oligonucleotide-encoded libraries and methods of tagging such libraries. In particular, the methods and oligonucleotides can include one or more 2?-substituted nucleotides, such as 2?-O-methyl or 2?-fluoro nucleotides, and other conditions or reagents to enhance enzyme ligation or one or more chemical functionalities to support chemical ligation.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: December 15, 2020
    Assignee: X-Chem, Inc.
    Inventors: Anthony D. Keefe, Richard W. Wagner, Alexander Litovchick, Matthew Clark, John W. Cuozzo, Ying Zhang, Paolo A. Centrella, Christopher D. Hupp
  • Publication number: 20180002688
    Abstract: The present invention relates to methods for producing encoded chemical entities. In particular, the oligonucleotides and methods can include encoded chemical entities having wild-type linkages formed through chemical ligation techniques. One strategy that can be utilized that simultaneously takes advantage of chemical ligation as a means to encode chemical history, while also retaining the ability of polymerases to directly recover tag sequence and association information, is to perform chemical ligation in a manner that generates wildtype phosphodiester linkages. Such methods generally utilize condensing agents such as cyanogen bromide or similar along with 5?-phosphate and 3?-hydroxyl oligonucleotides in a double-stranded or templated context. Similarly cyanogen bromide has also been shown to chemically ligate pairs of substrate oligonucleotides that are 5?-hydroxyl and 3?-phosphate.
    Type: Application
    Filed: December 28, 2015
    Publication date: January 4, 2018
    Applicant: X-Chem, Inc.
    Inventors: Anthony D. KEEFE, Alexander LITOVCHICK, Matthew CLARK, Richard W. WAGNER
  • Publication number: 20160369267
    Abstract: The present invention features a number of methods for identifying one or more compounds that bind to a biological target. The methods include synthesizing a library of compounds, wherein the compounds contain a functional moiety having one or more diversity positions. The functional moiety of the compounds is operatively linked to an initiator oligonucleotide that identifies the structure of the functional moiety.
    Type: Application
    Filed: May 5, 2016
    Publication date: December 22, 2016
    Applicant: X-Chem, Inc.
    Inventor: Richard W. WAGNER
  • Patent number: 9394256
    Abstract: The present invention features benzhydrol-pyrazole derivatives and related compounds having kinase inhibitory activity. The compounds of the invention, alone or in combination with other pharmaceutically active agents, can be used for treating or preventing various medical conditions, such as cancers, inflammatory disorders, or autoimmune disorders.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: July 19, 2016
    Assignee: X-Chem, Inc.
    Inventors: Anthony D. Keefe, Richard W. Wagner, Matthew Clark, Ying Zhang, Diana Gikunju, John Cuozzo, Heather Thomson
  • Patent number: 9394296
    Abstract: The present invention features tryptoline derivatives and related compounds having kinase inhibitory activity. The compounds of the invention, alone or in combination with other pharmaceutically active agents, can be used for treating or preventing various medical conditions, such as cancers, inflammatory disorders, or autoimmune disorders.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: July 19, 2016
    Assignee: X-Chem, Inc.
    Inventors: Anthony D. Keefe, Richard W. Wagner, Matthew Clark, Ying Zhang, Diana Gikunju, John Cuozzo, Heather Thomson
  • Patent number: 9359601
    Abstract: The present invention features a number of methods for identifying one or more compounds that bind to a biological target. The methods include synthesizing a library of compounds, wherein the compounds contain a functional moiety having one or more diversity positions. The functional moiety of the compounds is operatively linked to an initiator oligonucleotide that identifies the structure of the functional moiety.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: June 7, 2016
    Assignee: X-Chem, Inc.
    Inventor: Richard W. Wagner
  • Publication number: 20140315762
    Abstract: The present invention relates to oligonucleotide-encoded libraries and methods of tagging such libraries. In particular, the methods and oligonucleotides can include one or more 2?-substituted nucleotides, such as 2?-O-methyl or 2?-fluoro nucleotides, and other conditions or reagents to enhance enzyme ligation or one or more chemical functionalities to support chemical ligation.
    Type: Application
    Filed: September 7, 2012
    Publication date: October 23, 2014
    Applicant: X-Chem, Inc.
    Inventors: Anthony D. Keefe, Richard W. Wagner, Alexander Litovchick, Matthew Clark, John W. Cuozzo, Ying Zhang, Paolo A. Centrella, Christopher D. Hupp