Patents by Inventor Xiaohong Cai

Xiaohong Cai 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: 20240140970
    Abstract: Described is a deuterated compound, and preparation method and use thereof The deuterated compound I has a structure as shown in Formula (I), wherein A is H or D, and at least one of eight As is D; M is H or an alkali metal, an alkaline earth metal, or an ammonium radical. The present invention provides use of the deuterated compound I as an internal standard for measuring the content of a metabolite II in a biological sample, wherein the metabolite II has a structure as shown in a Formula (II); wherein A is H; M is H or an alkali metal, an alkaline earth metal, or an ammonium radical. The present invention uses the deuterated compound I as an internal standard to quantitatively analysis the content of metabolite II at lower content in biological samples, which can not only meet the requirements for the lower limit of quantitation, but also meet the requirements for DMPK studies in clinical trials.
    Type: Application
    Filed: November 26, 2021
    Publication date: May 2, 2024
    Inventors: Meizhen Ruan, Xiaohong Cai, Jianxin Duan, Donald T Jung, Anrong Li, Teng Meng, Lin Sun, Bing Li
  • Publication number: 20230339991
    Abstract: Described are hypoxia-activated DNA alkylating agents having any one of the following structural formulas, or a pharmaceutically acceptable salt, a prodrug, a solvate or an isotopic variant thereof, as well as an anticancer medical use thereof.
    Type: Application
    Filed: June 23, 2021
    Publication date: October 26, 2023
    Inventors: Anrong Li, Jianxin Duan, Fanying Meng, Xiaohong Cai, Tianyang Qi
  • Publication number: 20230026163
    Abstract: A compound of formula (I), or pharmaceutically acceptable salts, solvates, isotopic variants, or isomers thereof, and anticancer medical use are provided.
    Type: Application
    Filed: September 10, 2020
    Publication date: January 26, 2023
    Inventors: Anrong LI, Jianxin DUAN, Fanying MENG, Xiaohong CAI
  • Patent number: 11535585
    Abstract: Provided herein are compounds of formula I: wherein the variables are defined herein, processes of making them, and methods of treating cancer comprising administering such compounds.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: December 27, 2022
    Assignee: OBI PHARMA, INC.
    Inventors: Jian-Xin Duan, Yeyu Cao, Xiaohong Cai, Hailong Jiao, Jing Yuan Ma, Mark Matteucci
  • Publication number: 20220387345
    Abstract: Provided are anti-cancer compounds which act as a non-PGP substrate, same being compounds of formula I-1, or a pharmaceutically acceptable salt, a prodrug or a solvate thereof, and the medical use of these compounds in the treatment of cancers, tumors, conditions caused by cancers or tumors, or cell proliferative diseases. Also provided is a method for treating cancers, tumors, conditions caused by cancers or tumors, or cell proliferative diseases using the anti-cancer compounds which act as non-PGP substrates as described above.
    Type: Application
    Filed: October 30, 2020
    Publication date: December 8, 2022
    Inventors: Jianxin DUAN, Anrong LI, Xiaohong CAI
  • Publication number: 20220251021
    Abstract: Described are compounds that act as AKR1C3 inhibitors or pharmaceutically acceptable salts or solvates or isotopically substituted compounds thereof and methods thereof.
    Type: Application
    Filed: June 30, 2020
    Publication date: August 11, 2022
    Inventors: Jianxin Duan, Anrong Li, Fanying Meng, Xiaohong Cai
  • Publication number: 20220119429
    Abstract: The present invention provides a fluorine-containing compound shown in Formula II/III and its anti-cancer medical use.
    Type: Application
    Filed: May 12, 2020
    Publication date: April 21, 2022
    Inventors: Jianxin Duan, Anrong Li, Fanying Meng, Xiaohong Cai
  • Publication number: 20210017120
    Abstract: Provided herein are compounds of formula I: wherein the variables are defined herein, processes of making them, and methods of treating cancer comprising administering such compounds.
    Type: Application
    Filed: September 29, 2020
    Publication date: January 21, 2021
    Applicant: OBI PHARMA, INC.
    Inventors: Jian-Xin Duan, Yeyu Cao, Xiaohong Cai, Hailong Jiao, Jing Yuan Ma, Mark Matteucci
  • Patent number: 10829437
    Abstract: Provided herein are compounds of formula I, wherein the variables are defined herein, processes of making them, and methods of treating cancer comprising administering such compounds.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: November 10, 2020
    Assignee: OBI PHARMA, INC.
    Inventors: Jian-Xin Duan, Yeyu Cao, Xiaohong Cai, Hailong Jiao, Jing Yuan Ma, Mark Matteucci
  • Patent number: 10766914
    Abstract: Provided herein are compounds of formula I: wherein the variables are defined herein, processes of making them, and methods of treating cancer comprising administering such compounds.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: September 8, 2020
    Assignee: OBI PHARMA, INC.
    Inventors: Jian-Xin Duan, Yeyu Cao, Xiaohong Cai, Hailong Jiao, Jing Yuan Ma, Mark Matteucci
  • Patent number: 10668047
    Abstract: Provided herein are compounds of formula (I)-(VI): wherein the variables are defined herein, processes of making them, and methods of treating cancer comprising administering such compounds.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: June 2, 2020
    Assignee: Molecular Templates, Inc.
    Inventors: Mark Matteucci, Xiaohong Cai, Yeyu Cao, Hailong Jiao, Jing Yuan Ma, Jian-Xin Duan
  • Publication number: 20200085786
    Abstract: Provided herein are compounds of formula (I)-(VI): wherein the variables are defined herein, processes of making them, and methods of treating cancer comprising administering such compounds.
    Type: Application
    Filed: April 23, 2019
    Publication date: March 19, 2020
    Inventors: Mark Matteucci, Xiaohong Cai, Yeyu Cao, Hailong Jiao, Jing Yuan Ma, Jian-Xin Duan
  • Patent number: 10409869
    Abstract: Provided herein are optically active compounds of the formulae (ii); and (III) and pharmaceutical compositions thereof. Also provided herein are processes of making these compounds and resolving the racemic mixture or the enrichment of same with in one of its enantiomers to provide (R)- and (S)-1-(3-(3-N,N-dimethylaminocarbonyl)phenoxyl-4-nitrophenyl)-1-ethyl-N,N?-bis(ethylene)phosphoramidate, and methods of treating cancer comprising administering such compounds.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: September 10, 2019
    Assignee: OBI PHARMA, INC.
    Inventors: Jian-Xin Duan, Yeyu Cao, Xiaohong Cai, Hailong Jiao, Jing Yuan Ma, Mark Matteucci
  • Patent number: 10364261
    Abstract: Provided herein are compounds of formula I: wherein the variables are defined herein, processes of making them, and methods of treating cancer comprising administering such compounds.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: July 30, 2019
    Assignee: OBI PHARMA, INC.
    Inventors: Jian-Xin Duan, Yeyu Cao, Xiaohong Cai, Hailong Jiao, Jing Yuan Ma, Mark Matteucci
  • Publication number: 20190225633
    Abstract: Provided herein are compounds of formula I: wherein the variables are defined herein, processes of making them, and methods of treating cancer comprising administering such compounds.
    Type: Application
    Filed: March 28, 2019
    Publication date: July 25, 2019
    Applicant: OBI PHARMA, INC.
    Inventors: Jian-Xin Duan, Yeyu Cao, Xiaohong Cai, Hailong Jiao, Jing Yuan Ma, Mark Matteucci
  • Publication number: 20180258116
    Abstract: Provided herein are optically active compounds of the formulae (ii); and (III) and pharmaceutical compositions thereof. Also provided herein are processes of making these compounds and resolving the racemic mixture or the enrichment of same with in one of its enantiomers to provide (R)- and (S)-1-(3-(3-N,N-dimethylaminocarbonyl)phenoxyl-4-nitrophenyl)-1-ethyl-N,N?-bis(ethylene)phosphoramidate, and methods of treating cancer comprising administering such compounds.
    Type: Application
    Filed: November 15, 2016
    Publication date: September 13, 2018
    Applicant: OBI Pharma, Inc.
    Inventors: Jian-Xin Duan, Yeyu Cao, Xiaohong Cai, Hailong Jiao, Jing Yuan Ma, Mark Matteucci
  • Publication number: 20180169064
    Abstract: Provided herein are compounds of formula (I)-(VI), wherein the variables are defined herein, processes of making them, and methods of treating cancer comprising administering such compounds.
    Type: Application
    Filed: June 23, 2016
    Publication date: June 21, 2018
    Inventors: Mark Matteucci, Xiaohong Cai, Yeyu Cao, Hailong Jiao, Jing Yuan Ma, Jian-Xin Duan
  • Publication number: 20180086693
    Abstract: Provided herein are compounds of formula I, wherein the variables are defined herein, processes of making them, and methods of treating cancer comprising administering such compounds.
    Type: Application
    Filed: April 1, 2016
    Publication date: March 29, 2018
    Applicant: OBI PHARMA, INC.
    Inventors: Jian-Xin Duan, Yeyu Cao, Xiaohong Cai, Hailong Jiao, Jing Yuan Ma, Mark Matteucci
  • Publication number: 20180044360
    Abstract: Provided herein are compounds of formula I: wherein the variables are defined herein, processes of making them, and methods of treating cancer comprising administering such compounds.
    Type: Application
    Filed: March 9, 2016
    Publication date: February 15, 2018
    Applicant: OBI PHARMA, INC.
    Inventors: Jian-Xin Duan, Yeyu Cao, Xiaohong Cai, Hailong Jiao, Jing Yuan Ma, Mark Matteucci
  • Patent number: 8575188
    Abstract: Various 14-nitro, 14-amino, and 14-substituted amino camptothecin derivatives are useful in the treatment of cancer and other hyperproliferative diseases. 14-Nitro camptothecin derivatives are conveniently prepared by reacting a camptothecin derivative with fuming nitric acid, optionally employing acetic anhydride as a solvent.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: November 5, 2013
    Assignee: Threshold Pharmaceuticals, Inc.
    Inventors: Xiaohong Cai, Jian-Xin Duan, Mark Matteucci, Yeyu Cao, Hailong Jiao