Patents by Inventor Xiaoting Zhai

Xiaoting Zhai 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: 11897848
    Abstract: The present disclosure relates to novel crystalline forms of ozanimod and preparation method thereof. The provided crystalline forms of ozanimod comprise crystalline form CS9, crystalline form CS10 and crystalline form CS11, and can be used for treating autoimmune diseases, particularly used for preparing drugs for treating multiple sclerosis and ulcerative colitis. The crystalline forms of the present disclosure have one or more advantages in solubility, stability, hygroscopicity and processability and provide new and better choices for the preparation of ozanimod drug product, and are very valuable for drug development.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: February 13, 2024
    Assignee: RECEPTOS LLC
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Kaiqiang Yan, Chaohui Yang, Xiaoyu Zhang
  • Patent number: 11680050
    Abstract: The present disclosure is directed to novel crystalline forms of ozanimod and ozanimod hydrochloride, as well as preparation method thereof. Said crystalline forms of ozanimod and ozanimod hydrochloride can be used for treating autoimmune diseases, particularly used for preparing drugs for treating multiple sclerosis and ulcerative colitis. The crystalline forms of the present disclosure have one or more advantages in solubility, melting point, stability, dissolution, bioavailability and processability and provide new and better choices for the preparation of ozanimod drug product, and are very valuable for drug development.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: June 20, 2023
    Assignee: RECEPTOS LLC
    Inventors: Minhua Chen, Xiaoyu Zhang, Yanfeng Zhang, Chaohui Yang, Xiaoting Zhai, Kaiqiang Yan
  • Publication number: 20210332014
    Abstract: The present invention relates to novel cabozantinib malate crystalline forms, preparation methods for the cabozantinib malate, a pharmaceutical composition comprising the novel cabozantinib malate crystalline forms, and use of the novel cabozantinib malate crystalline forms in the preparation of MET, VEGFR1/2/3, ROS1, RET, AXL, NTRK, and KIT inhibitors and pharmaceutical preparations for treating cancers such as thyroid cancer, lung cancer, kidney cancer and liver cancer. The cabozantinib malate crystalline forms provided by the present invention has one or more improved properties compared with the prior art, and the preparation method for the cabozantinib malate provided by the present disclosure has a lower cost and better quality of the obtained product compared with the prior art, having important value for future optimization and development of this drug.
    Type: Application
    Filed: September 20, 2019
    Publication date: October 28, 2021
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Jing Zhang, Qun Zhang
  • Patent number: 11149004
    Abstract: The present disclosure relates to a crystalline form of compound I and processes for preparation thereof. The present disclosure also relates to a pharmaceutical composition containing the crystalline form, use of the crystalline form for preparing serotonin, norepinephrine and dopamine triple reuptake inhibitors drugs, and/or use of the crystalline form for preparing drugs treating nervous system disorders. The crystalline form of the present disclosure has one or more improved properties compared with prior art and has significant values for future drug optimization and development.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: October 19, 2021
    Assignee: Crystal Pharmaceutical (Suzhou) Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Xiaoyu Zhang
  • Publication number: 20210300893
    Abstract: The present disclosure relates to novel crystalline forms of ARN-509 (structure shown in formula I), processes for preparation of the novel crystalline forms, pharmaceutical composition of the novel crystalline forms, and uses of the novel crystalline forms for preparing drug products of androgen receptor antagonists and for treating prostate cancer. The crystalline forms of ARN-509 provided by the present disclosure have one or more improved properties compared with the prior art, and is of great value to the future optimization and development of drugs.
    Type: Application
    Filed: June 7, 2021
    Publication date: September 30, 2021
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Jiale Qian, Yuhao Chen, Chaohui Yang
  • Publication number: 20210292287
    Abstract: The present disclosure relates to novel crystalline forms of ozanimod and preparation method thereof. The provided crystalline forms of ozanimod comprise crystalline form CS9, crystalline form CS10 and crystalline form CS11, and can be used for treating autoimmune diseases, particularly used for preparing drugs for treating multiple sclerosis and ulcerative colitis. The crystalline forms of the present disclosure have one or more advantages in solubility, stability, hygroscopicity and processability and provide new and better choices for the preparation of ozanimod drug product, and are very valuable for drug development.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Kaiqiang Yan, Chaohui Yang, Xiaoyu Zhang
  • Patent number: 11117876
    Abstract: The present disclosure is related to crystalline forms of ozanimod hydrochloride, as well as preparation method thereof. The crystalline form of ozanimod hydrochloride provided by the present disclosure can be used for treating autoimmune diseases, particularly multiple sclerosis and ulcerative colitis. The crystalline form of the present disclosure has advantages in at least one aspect of solubility, melting point, stability, dissolution, bioavailability and processability and provides a new and better choice for the preparation of drug product containing ozanimod, and has significant value for drug development.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: September 14, 2021
    Assignee: RECEPTOS LLC
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Kaiqiang Yan, Chaohui Yang
  • Patent number: 11111223
    Abstract: The present disclosure is directed to novel crystalline forms of ozanimod and ozanimod hydrochloride, as well as preparation method thereof. Said crystalline forms of ozanimod and ozanimod hydrochloride can be used for treating autoimmune diseases, particularly used for preparing drugs for treating multiple sclerosis and ulcerative colitis. The crystalline forms of the present disclosure have one or more advantages in solubility, melting point, stability, dissolution, bioavailability and processability and provide new and better choices for the preparation of ozanimod drug product, and are very valuable for drug development.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: September 7, 2021
    Assignee: RECEPTOS LLC
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Kaiqiang Yan, Chaohui Yang, Xiaoyu Zhang
  • Patent number: 11066384
    Abstract: The present disclosure relates to novel crystalline forms of ARN-509 (structure shown in formula I), processes for preparation of the novel crystalline forms, pharmaceutical composition of the novel crystalline forms, and uses of the novel crystalline forms for preparing drug products of androgen receptor antagonists and for treating prostate cancer. The crystalline forms of ARN-509 provided by the present disclosure have one or more improved properties compared with the prior art, and is of great value to the future optimization and development of drugs.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: July 20, 2021
    Assignee: Crystal Pharmaceutical (Suzhou) Co., Ltd.
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Jiale Qian, Yuhao Chen, Chaohui Yang
  • Publication number: 20210179558
    Abstract: The present disclosure relates to a crystalline form of compound I and processes for preparation thereof. The present disclosure also relates to a pharmaceutical composition containing the crystalline form, use of the crystalline form for preparing serotonin, norepinephrine and dopamine triple reuptake inhibitors drugs, and/or use of the crystalline form for preparing drugs treating nervous system disorders. The crystalline form of the present disclosure has one or more improved properties compared with prior art and has significant values for future drug optimization and development.
    Type: Application
    Filed: October 11, 2018
    Publication date: June 17, 2021
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Xiaoyu Zhang
  • Patent number: 11028060
    Abstract: The present disclosure relates to novel crystalline forms of ozanimod and preparation method thereof. The provided crystalline forms of ozanimod comprise crystalline form CS9, crystalline form CS10 and crystalline form CS11, and can be used for treating autoimmune diseases, particularly used for preparing drugs for treating multiple sclerosis and ulcerative colitis. The crystalline forms of the present disclosure have one or more advantages in solubility, stability, hygroscopicity and processability and provide new and better choices for the preparation of ozanimod drug product, and are very valuable for drug development.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: June 8, 2021
    Assignee: RECEPTOS LLC
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Kaiqiang Yan, Chaohui Yang, Xiaoyu Zhang
  • Publication number: 20210017148
    Abstract: The present disclosure relates to novel crystalline forms of ARN-509 (structure shown in formula I), processes for preparation of the novel crystalline forms, pharmaceutical composition of the novel crystalline forms, and uses of the novel crystalline forms for preparing drug products of androgen receptor antagonists and for treating prostate cancer. The crystalline forms of ARN-509 provided by the present disclosure have one or more improved properties compared with the prior art, and is of great value to the future optimization and development of drugs.
    Type: Application
    Filed: September 28, 2020
    Publication date: January 21, 2021
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Jiale Qian, Yuhao Chen, Chaohui Yang
  • Patent number: 10882830
    Abstract: The present disclosure relates to crystalline form CS3 of ozanimod hydrochloride which can be used for treating autoimmune diseases, particularly used for preparing drugs for treating multiple sclerosis and ulcerative colitis and preparation method thereof.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: January 5, 2021
    Assignee: RECEPTOS LLC
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Kaiqiang Yan, Chaohui Yang, Xiaoyu Zhang
  • Publication number: 20200339524
    Abstract: The present disclosure is related to crystalline forms of ozanimod hydrochloride, as well as preparation method thereof. The crystalline form of ozanimod hydrochloride provided by the present disclosure can be used for treating autoimmune diseases, particularly multiple sclerosis and ulcerative colitis. The crystalline form of the present disclosure has advantages in at least one aspect of solubility, melting point, stability, dissolution, bioavailability and processability and provides a new and better choice for the preparation of drug product containing ozanimod, and has significant value for drug development.
    Type: Application
    Filed: August 23, 2018
    Publication date: October 29, 2020
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Kaiqiang Yan, Chaohui Yang
  • Publication number: 20200270226
    Abstract: The present disclosure relates to novel crystalline forms of ARN-509 (structure shown in formula I), processes for preparation of the novel crystalline forms, pharmaceutical composition of the novel crystalline forms, and uses of the novel crystalline forms for preparing drug products of androgen receptor antagonists and for treating prostate cancer. The crystalline forms of ARN-509 provided by the present disclosure have one or more improved properties compared with the prior art, and is of great value to the future optimization and development of drugs.
    Type: Application
    Filed: May 16, 2019
    Publication date: August 27, 2020
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Jiale Qian, Yuhao Chen, Chaohui Yang
  • Patent number: 10752595
    Abstract: The present disclosure relates to novel crystalline forms of a bromodomain protein inhibitor 2-[4-(2-hydroxyethoxy)-3,5-dimethylphenyl]-5,7-dimethoxyquinazolin-4(3H)-one and processes for preparation and use thereof, relating to pharmaceutical industry. Form CS2, Form CS8, Form CS13, Form CS20, Form CS1, Form CS7, Form CS9, Form CS11 and Form CS4 of the present disclosure can be used for preparing drugs treating cardiovascular, cholesterol or lipid-related disorders.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: August 25, 2020
    Assignee: CRYSTAL PHARMACEUTICAL (SUZHOU) CO., LTD.
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Kaiqiang Yan, Xiaoyu Zhang
  • Publication number: 20200216404
    Abstract: The present disclosure relates to novel crystalline forms of ozanimod and preparation method thereof. The provided crystalline forms of ozanimod comprise crystalline form CS9, crystalline form CS10 and crystalline form CS11, and can be used for treating autoimmune diseases, particularly used for preparing drugs for treating multiple sclerosis and ulcerative colitis. The crystalline forms of the present disclosure have one or more advantages in solubility, stability, hygroscopicity and processability and provide new and better choices for the preparation of ozanimod drug product, and are very valuable for drug development.
    Type: Application
    Filed: August 18, 2017
    Publication date: July 9, 2020
    Applicant: CRYSTAL PHARMACEUTICAL (SUZHOU) CO., LTD.
    Inventors: Minhua CHEN, Yanfeng ZHANG, Xiaoting ZHAI, Kaiqiang YAN, Chaohui YANG, Xiaoyu ZHANG
  • Publication number: 20200157065
    Abstract: The present disclosure is directed to novel crystalline forms of ozanimod and ozanimod hydrochloride, as well as preparation method thereof. Said crystalline forms of ozanimod and ozanimod hydrochloride can be used for treating autoimmune diseases, particularly used for preparing drugs for treating multiple sclerosis and ulcerative colitis. The crystalline forms of the present disclosure have one or more advantages in solubility, melting point, stability, dissolution, bioavailability and processability and provide new and better choices for the preparation of ozanimod drug product, and are very valuable for drug development.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 21, 2020
    Inventors: Minhua Chen, Xiaoyu Zhang, Yanfeng Zhang, Chaohui Yang, Xiaoting Zhai, Kaiqiang Yan
  • Publication number: 20190337908
    Abstract: The present disclosure is directed to novel crystalline forms of ozanimod and ozanimod hydrochloride, as well as preparation method thereof. Said crystalline forms of ozanimod and ozanimod hydrochloride can be used for treating autoimmune diseases, particularly used for preparing drugs for treating multiple sclerosis and ulcerative colitis. The crystalline forms of the present disclosure have one or more advantages in solubility, melting point, stability, dissolution, bioavailability and processability and provide new and better choices for the preparation of ozanimod drug product, and are very valuable for drug development.
    Type: Application
    Filed: June 14, 2017
    Publication date: November 7, 2019
    Applicant: CRYSTAL PHARMACEUTICAL (SUZHOU) CO., LTD.
    Inventors: Minhua CHEN, Yanfeng ZHANG, Xiaoting ZHAI, Kaiqiang YAN, Chaohui YANG, Xiaoyu ZHANG
  • Publication number: 20190330161
    Abstract: The present disclosure relates to novel crystalline forms of a bromodomain protein inhibitor 2-[4-(2-hydroxyethoxy)-3,5-dimethylphenyl]-5,7-dimethoxyquinazolin-4(3H)-one and processes for preparation and use thereof, relating to pharmaceutical industry. Form CS2, Form CS8, Form CS13, Form CS20, Form CS1, Form CS7, Form CS9, Form CS11 and Form CS4 of the present disclosure can be used for preparing drugs treating cardiovascular, cholesterol or lipid-related disorders.
    Type: Application
    Filed: December 8, 2017
    Publication date: October 31, 2019
    Inventors: Minhua Chen, Yanfeng Zhang, Xiaoting Zhai, Kaiqiang Yan, Xiaoyu Zhang