Patents by Inventor MD. Sazzad Hossain

MD. Sazzad Hossain 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: 11667658
    Abstract: The subject invention provides methods for the chemical synthesis of racemic arsinothricin (D,L-AST), the novel organoarsenical antibiotic. One is by condensation of the 2-chloroethyl(methyl)arsinic acid with acetamidomalonate, and the second involves reduction of the N-acetyl-protected derivative of hydroxyarsinothricin (AST-OH) and subsequent methylation of the resulting sodium salt of trivalent arsenic intermediate with methyl iodide. The enzyme AST N-acetyltransferase (ArsN1) was utilized to purify L-AST from racemic AST. This expedient chemical synthesis of AST provides a source of this novel antibiotic for future drug development.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: June 6, 2023
    Assignee: The Florida International University Board of Trustees
    Inventors: Barry P. Rosen, Masafumi Yoshinaga, Stanislaw F. Wnuk, Md Abu Hasan Howlader, Sk Md Sazzad Hossain Suzol
  • Publication number: 20230093812
    Abstract: The subject invention provides methods for the chemical synthesis of racemic arsinothricin (D,L-AST), the novel organoarsenical antibiotic. One is by condensation of the 2-chloroethyl(methyl)arsinic acid with acetamidomalonate, and the second involves reduction of the N-acetyl-protected derivative of hydroxyarsinothricin (AST-OH) and subsequent methylation of the resulting sodium salt of trivalent arsenic intermediate with methyl iodide. The enzyme AST N-acetyltransferase (ArsN1) was utilized to purify L-AST from racemic AST. This expedient chemical synthesis of AST provides a source of this novel antibiotic for future drug development.
    Type: Application
    Filed: December 5, 2022
    Publication date: March 30, 2023
    Applicant: THE FLORIDA INTERNATIONAL UNIVERSITY BOARD OF TRUSTEES
    Inventors: BARRY P. ROSEN, MASAFUMI YOSHINAGA, STANISLAW F. WNUK, MD ABU HASAN HOWLADER, SK MD SAZZAD HOSSAIN SUZOL
  • Patent number: 11518775
    Abstract: The subject invention provides methods for the chemical synthesis of racemic arsinothricin (D,L-AST), the novel organoarsenical antibiotic. One is by condensation of the 2-chloroethyl(methyl)arsinic acid with acetamidomalonate, and the second involves reduction of the N-acetyl-protected derivative of hydroxyarsinothricin (AST-OH) and subsequent methylation of the resulting sodium salt of trivalent arsenic intermediate with methyl iodide. The enzyme AST N-acetyltransferase (ArsNl) was utilized to purify L-AST from racemic AST. This expedient chemical synthesis of AST provides a source of this novel antibiotic for future drug development.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: December 6, 2022
    Assignee: THE FLORIDA INTERNATIONAL UNIVERSITY BOARD OF TRUSTEES
    Inventors: Barry P. Rosen, Masafumi Yoshinaga, Stanislaw F. Wnuk, Md Abu Hasan Howlader, Sk Md Sazzad Hossain Suzol
  • Patent number: 11396520
    Abstract: The subject invention provides methods and procedures for synthesis and/or semi-synthesis of the novel antibiotic arsinothricin (AST) and derivatives. Arsinothricin (AST), a new broad-spectrum organoarsenical antibiotic, is a non-proteinogenic analog of glutamate that effectively inhibits glutamine synthetase. The subject invention provides chemical synthesis of an intermediate in the pathway of AST synthesis, hydroxyarsinothricin (AST-OH), which can be converted to AST by enzymatic methylation catalyzed by the ArsM As(III) S-adenosylmethionine methyltransferase. The methods provide a source of the novel antibiotic that will be required for future clinical trials. The subject invention also provides AST derivatives as a new class of antibiotics.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: July 26, 2022
    Assignee: THE FLORIDA INTERNATIONAL UNIVERSITY BOARD OF TRUSTEES
    Inventors: Barry P. Rosen, Stanislaw F. Wnuk, Masafumi Yoshinaga, Md Abu Hasan Howlader, Sk Md Sazzad Hossain Suzol
  • Publication number: 20210380615
    Abstract: The subject invention provides methods and procedures for synthesis and/or semi-synthesis of the novel antibiotic arsinothricin (AST) and derivatives. Arsinothricin (AST), a new broad-spectrum organoarsenical antibiotic, is a non-proteinogenic analog of glutamate that effectively inhibits glutamine synthetase. The subject invention provides chemical synthesis of an intermediate in the pathway of AST synthesis, hydroxyarsinothricin (AST-OH), which can be converted to AST by enzymatic methylation catalyzed by the ArsM As(III) S-adenosylmethionine methyltransferase. The methods provide a source of the novel antibiotic that will be required for future clinical trials. The subject invention also provides AST derivatives as a new class of antibiotics.
    Type: Application
    Filed: February 26, 2021
    Publication date: December 9, 2021
    Applicant: THE FLORIDA INTERNATIONAL UNIVERSITY BOARD OF TRUSTEES
    Inventors: BARRY P. ROSEN, STANISLAW F. WNUK, MASAFUMI YOSHINAGA, MD ABU HASAN HOWLADER, SK MD SAZZAD HOSSAIN SUZOL
  • Patent number: 10934318
    Abstract: The subject invention provides methods and procedures for synthesis and/or semi-synthesis of the novel antibiotic arsinothricin (AST) and derivatives. Arsinothricin (AST), a new broad-spectrum organoarsenical antibiotic, is a non-proteinogenic analog of glutamate that effectively inhibits glutamine synthetase. The subject invention provides chemical synthesis of an intermediate in the pathway of AST synthesis, hydroxyarsinothricin (AST-OH), which can be converted to AST by enzymatic methylation catalyzed by the ArsM As(III) S-adenosylmethionine methyltransferase. The methods provide a source of the novel antibiotic that will be required for future clinical trials. The subject invention also provides AST derivatives as a new class of antibiotics.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: March 2, 2021
    Assignee: THE FLORIDA INTERNATIONAL UNIVERSITY BOARD OF TRUSTEES
    Inventors: Barry P. Rosen, Stanislaw F. Wnuk, Masafumi Yoshinaga, Md Abu Hasan Howlader, Sk Md Sazzad Hossain Suzol
  • Patent number: 10051043
    Abstract: In accordance with an embodiment, described herein is a system and method for JMX support in an application server environment. An exemplary method can provide, at one or more computers, including an application server environment executing thereon, a plurality of deployable resources which can be used within the application server environment, one or more partitions, a plurality of managed beans, each managed beans being a partition level managed bean or a domain level managed bean, each partition level managed bean originating at an originating partition of the one or more partitions, and a JMX framework comprising an API and a managed bean server. The plurality of managed beans can be registered at the managed bean server, with the partition level managed beans being decorated with an identifier.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: August 14, 2018
    Assignee: ORACLE INTERNATIONAL CORPORATION
    Inventors: Christopher Kasso, Peter Bower, Qianhong Pan, Sanjeeb Sahoo, Nazrul Islam, Rajiv Mordani, Byron Nevins, MD. Sazzad Hossain, Rehana Tabassum, Yamini Kalyandurga Balasubramanyam
  • Publication number: 20160094404
    Abstract: In accordance with an embodiment, described herein is a system and method for JMX support in an application server environment. An exemplary method can provide, at one or more computers, including an application server environment executing thereon, a plurality of deployable resources which can be used within the application server environment, one or more partitions, a plurality of managed beans, each managed beans being a partition level managed bean or a domain level managed bean, each partition level managed bean originating at an originating partition of the one or more partitions, and a JMX framework comprising an API and a managed bean server. The plurality of managed beans can be registered at the managed bean server, with the partition level managed beans being decorated with an identifier.
    Type: Application
    Filed: September 24, 2015
    Publication date: March 31, 2016
    Inventors: Christopher Kasso, Peter Bower, QIANHONG Pan, Sanjeeb Sahoo, Nazrul Islam, Rajiv Mordani, Byron Nevins, MD. Sazzad Hossain, Rehana Tabbasum, Yamini Kalyandurga Balasubramanyam