Patents by Inventor Vladimir DERGACHEV

Vladimir DERGACHEV 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).

  • Patent number: 9925275
    Abstract: Embodiments of the invention provide derivatives of Amphotericin B having increased solubility and reduced toxicity relative to AMB, while retaining antifungal activity against multiple clinical fungal isolates. Derivatives of AMB are provided comprising a polymer group having an amine group, the polymer linked to mycosamine via a relatively stable linker such as an amide linker. The derivatives may be of the general formula [I]: wherein R is H, C1-4 alkyl or phenyl; R2 is (CH2)m wherein m is between 0 and 4; R3 and R4 are each independently H or C1-4 alkyl, R5 is or OH, R6 is selected from a group consisting of: amide and alkyl, and R7 is a water-soluble polymer, and pharmaceutically acceptable salts, solvates, hydrates, diastereomers, and prodrugs of the compound of Formula [I].
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: March 27, 2018
    Assignees: TECHNION RESEARCH & DEVELOPMENT FOUNDATION LTD., RAMOT AT TEL-AVIV UNIVERSITY LTD.
    Inventors: Itai Benhar, Nir Osherov, Vladimir Dergachev, Alex Martin Szpilman
  • Publication number: 20170319705
    Abstract: Embodiments of the invention provide derivatives of Amphotericin B having increased solubility and reduced toxicity relative to AMB, while retaining antifungal activity against multiple clinical fungal isolates. Derivatives of AMB are provided comprising a polymer group having an amine group, the polymer linked to mycosamine via a relatively stable linker such as an amide linker. The derivatives may be of the general formula [I]: wherein R is H, C1-4 alkyl or phenyl; R2 is (CH2)m wherein m is between 0 and 4; R3 and R4 are each independently H or C1-4 alkyl, R5 is or OH, R6 is selected from a group consisting of: amide and alkyl, and R7 is a water-soluble polymer, and pharmaceutically acceptable salts, solvates, hydrates, diastereomers, and prodrugs of the compound of Formula [I].
    Type: Application
    Filed: July 24, 2017
    Publication date: November 9, 2017
    Inventors: Itai BENHAR, Nir OSHEROV, Vladimir DERGACHEV, Alex Martin SZPILMAN
  • Patent number: 9750817
    Abstract: Embodiments of the invention provide derivatives of Amphotericin B having increased solubility and reduced toxicity relative to AMB, while retaining antifungal activity against multiple clinical fungal isolates. Derivatives of AMB are provided comprising a polymer group having an amine group, the polymer linked to mycosamine via a relatively stable linker such as an amide linker. The derivatives may be of the general formula [I]: wherein R is H, C1-4 alkyl or phenyl; R2 is (CH2)m wherein m is between 0 and 4; R3 and R4 are each independently H or C1-4 alkyl, R5 is H or OH, R6 is selected from a group consisting of: amide and alkyl, and R7 is a water-soluble polymer, and pharmaceutically acceptable salts, solvates, hydrates, diastereomers, and prodrugs of the compound of Formula [I].
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: September 5, 2017
    Assignees: RAMOT AT TEL-AVIV UNIVERSITY LTD., TECHNION RESEARCH & DEVELOPMENT FOUNDATION LTD.
    Inventors: Itai Benhar, Nir Osherov, Vladimir Dergachev, Alex Martin Szpilman
  • Publication number: 20170043029
    Abstract: Embodiments of the invention provide derivatives of Amphotericin B having increased solubility and reduced toxicity relative to AMB, while retaining antifungal activity against multiple clinical fungal isolates. Derivatives of AMB are provided comprising a polymer group having an amine group, the polymer linked to mycosamine via a relatively stable linker such as an amide linker. The derivatives may be of the general formula [I]: wherein R is H, C1-4 alkyl or phenyl; R2 is (CH2)m wherein m is between 0 and 4; R3 and R4 are each independently H or C1-4 alkyl, R5 is H or OH, R6 is selected from a group consisting of: amide and alkyl, and R7 is a water-soluble polymer, and pharmaceutically acceptable salts, solvates, hydrates, diastereomers, and prodrugs of the compound of Formula [I].
    Type: Application
    Filed: August 15, 2016
    Publication date: February 16, 2017
    Inventors: Itai BENHAR, Nir OSHEROV, Vladimir DERGACHEV, Alex Martin SZPILMAN