Patents by Inventor Sui Xiong Cai

Sui Xiong 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: 20240124464
    Abstract: Provided in the present invention are a substituted fused bicyclic compound as a kinase inhibitor and the use thereof. The substituted fused bicyclic compound has a structure as represented by formula I below, wherein a ring A, R0, B1-B3, D1-D3, R7 and R8 are defined herein. The compound of formula I is an NUAK1/2 inhibitor. Therefore, the compound of the present invention can be used for treating and preventing NUAK1/2-mediated diseases, disorders and conditions, such as cancer, and used in the preparation of drugs for treating and preventing NUAK1/2-mediated diseases, disorders and conditions.
    Type: Application
    Filed: November 29, 2021
    Publication date: April 18, 2024
    Inventors: Sui Xiong CAI, Ye Edward TIAN, Xiaozhu WANG
  • Publication number: 20240091233
    Abstract: Provided is a use of Wee1 kinase inhibitors in the treatment of cancer. In particular, provided is a use of Wee1 kinase inhibitors in the preparation of drugs for the treatment of cancers with Histone H3K27M mutation.
    Type: Application
    Filed: March 9, 2022
    Publication date: March 21, 2024
    Inventors: Ye Edward TIAN, Sui Xiong CAI, Mingchuan GUO, Chih-Yi HSIEH, Rong WANG, Ruiyu ZHOU
  • Publication number: 20240082166
    Abstract: An oral capsule formulation of a PARP inhibitor and a preparation method. The oral capsule formulation comprises a solid dispersion powder of an active ingredient 5-fluoro-1-(4-fluoro-3-(4-(pyrimidin-2-yl)piperazine-1-carbonyl)benzyl)quinazoline-2,4(1H,3H)-dione, a filler, a disintegrant, a glidant, and a lubricant, wherein less than 10 wt. % of the active ingredient in the solid dispersion powder is in a crystalline form. The defects of the fluidity, hygroscopicity and cohesiveness of the solid dispersion powder which result in the difficulty of production scale up of capsule formulation are addressed, and thus commercial scale production can be achieved, and the prepared capsule exhibits proper dissolution rate, excellent storage stability, meanwhile with a reasonable production cost.
    Type: Application
    Filed: March 25, 2022
    Publication date: March 14, 2024
    Inventors: Sui Xiong CAI, Ning MA, Liping ZHAO, Chunhui LIU, Zongfeng SHI
  • Publication number: 20240059695
    Abstract: The disclosure provides novel substituted imidazo [1, 5-b] pyridazine compounds as represented in Formula I: wherein A, R0, R1, R2 and R3 are defined herein. The compounds of Formula I are kinase inhibitors, especially ATR kinase inhibitors. Therefore, the compounds of the disclosure may be used to treat ATR-mediated diseases, disorders and conditions, such as cancer.
    Type: Application
    Filed: December 24, 2021
    Publication date: February 22, 2024
    Inventors: Sui Xiong CAI, Ye Edward TIAN, Xiaozhu WANG
  • Publication number: 20240010655
    Abstract: Disclosed are dihydroimidazopyrimidopyrimidinone compounds, specifically represented by Formula I: or pharmaceutically acceptable salts or prodrugs thereof, wherein the substituents are defined herein. Compounds of Formula I are Wee1 kinase inhibitors. Therefore, compounds of the invention may be used to treat diseases caused by abnormal Wee1 activity.
    Type: Application
    Filed: October 13, 2020
    Publication date: January 11, 2024
    Inventors: Sui Xiong CAI, Ye Edward TIAN, Xiaozhu WANG
  • Publication number: 20230399316
    Abstract: Provide crystal forms of 5-fluoro-1-(4-fluoro-3-(4-(pyrimidin-2-yl) piperazine-1-carbonyl) benzyl) quinazoline-2, 4 (1H,3H)-dione and preparation method thereof.
    Type: Application
    Filed: November 9, 2021
    Publication date: December 14, 2023
    Inventors: Sui Xiong CAI, Ning MA, Yisheng YANG, Kai YANG
  • Publication number: 20230263801
    Abstract: The present disclosure relates to method of combination therapies of PARP inhibitors. Specifically, the present disclosure relates to combination therapies of a PARP inhibitor represented by the following Formula (I) and a low dose of a DNA damaging anti-cancer drug. Adopting the combination therapy of the present disclosure can reduce the daily dose of DNA damaging anti-cancer drugs, reduce toxicity and improve anti-cancer effects.
    Type: Application
    Filed: July 23, 2021
    Publication date: August 24, 2023
    Inventors: Sui Xiong CAI, Ye Edward TIAN
  • Publication number: 20220356181
    Abstract: The disclosure provides novel compounds as represented in Formula I, wherein A0-A2, R0-R6, L, Z and Q are defined herein. The compounds of Formula I are CHK1 inhibitors. Therefore, the compounds of the disclosure can be used to treat diseases, disorders and conditions associated with continuous activation of CHK1 or with high internal DNA damage or injury during DNA replication, such as cancers.
    Type: Application
    Filed: September 3, 2020
    Publication date: November 10, 2022
    Inventors: Sui Xiong CAI, Ye Edward TIAN, Xiaozhu WANG
  • Publication number: 20220354859
    Abstract: The disclosure provides substituted imidazo[1,5-a]quinoxaline and related compounds as kinase inhibitors, and their uses. Specifically, the disclosure provides compounds of Formula I, or pharmaceutically acceptable salts thereof or prodrugs thereof, wherein, A1-A3, Cy and R1-R2 are defined herein. The compounds of Formula I are kinase inhibitors. Therefore, the compounds of the disclosure can be used to treat clinical conditions caused by DDR function defects, such as cancers.
    Type: Application
    Filed: September 11, 2020
    Publication date: November 10, 2022
    Inventors: Sui Xiong CAI, Ye Edward TIAN, Xiaozhu WANG
  • Publication number: 20220259211
    Abstract: A compound of formula I, or a stereoisomer, tautomer, N-oxide, hydrate, isotope-substituted derivative, or solvate thereof, or a pharmacologically acceptable salt thereof, or a mixture thereof, of a prodrug thereof. The compound of formula I is a kinase inhibitor which can be used for treating clinical disorder caused by DDR deficiencies, such as cancers.
    Type: Application
    Filed: July 8, 2020
    Publication date: August 18, 2022
    Applicant: IMPACT THERAPEUTICS (SHANGHAI), INC
    Inventors: Sui Xiong CAI, Ye Edward TIAN, Xiaozhu WANG
  • Patent number: 11358955
    Abstract: Disclosed are 1-(arylmethyl)quinazoline-2,4(1H,3H)-diones represented by the Formula (I): wherein Ar, R1-R6 are defined herein. Compounds having Formula (I) are PARP inhibitors. Therefore, compounds of the invention may be used to treat clinical conditions that are responsive to the inhibition of PARP activity.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: June 14, 2022
    Assignee: IMPACT THERAPEUTICS, INC.
    Inventors: Sui Xiong Cai, Ye Edward Tian, Haijun Dong, Qingbing Xu, Lizhen Wu, Lijun Liu, Yangzhen Jiang, Qingli Bao, Guoxiang Wang, Feng Yin, Chengyun Gu, Xiuhua Hu, Xiaozhu Wang, Sishun Kang, Shengzhi Chen
  • Patent number: 11345711
    Abstract: Disclosed are 8,9-dihydroimidazo[1,2-a]pyrimido[5,4-e]pyrimidin-5(6H)-one compounds, specifically represented by the Formula I: or a pharmaceutically acceptable salt or prodrug thereof, wherein A and R1-R7 are defined herein. Compounds having Formula I are Wee1 kinase inhibitors. Therefore, compounds of the disclosure may be used to treat diseases caused by abnormal Wee1 activity.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: May 31, 2022
    Assignee: IMPACT THERAPEUTICS (SHANGHAI), INC
    Inventors: Sui Xiong Cai, Ye Edward Tian
  • Publication number: 20200385394
    Abstract: Disclosed are 8,9-dihydroimidazo[1,2-a]pyrimido[5,4-e]pyrimidin-5(6H)-one compounds, specifically represented by the Formula I: or a pharmaceutically acceptable salt or prodrug thereof, wherein A and R1-R7 are defined herein. Compounds having Formula I are Wee1 kinase inhibitors. Therefore, compounds of the disclosure may be used to treat diseases caused by abnormal Wee1 activity.
    Type: Application
    Filed: May 26, 2020
    Publication date: December 10, 2020
    Inventors: Sui Xiong CAI, Ye Edward Tian
  • Patent number: 10703759
    Abstract: Disclosed are 8,9-dihydroimidazo[1,2-a]pyrimido[5,4-e]pyrimidin-5(6H)-one compounds, specifically represented by the Formula I: or a pharmaceutically acceptable salt or prodrug thereof, wherein A and R1-R7 are defined herein. Compounds having Formula I are Wee1 kinase inhibitors. Therefore, compounds of the disclosure may be used to treat diseases caused by abnormal Wee1 activity.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: July 7, 2020
    Assignee: IMPACT THERAPEUTICS, INC
    Inventors: Sui Xiong Cai, Ye Edward Tian
  • Publication number: 20190308984
    Abstract: Disclosed are 8,9-dihydroimidazo[1,2-a]pyrimido[5,4-e]pyrimidin-5(6H)-one compounds, specifically represented by the Formula I: or a pharmaceutically acceptable salt or prodrug thereof, wherein A and R1-R7 are defined herein. Compounds having Formula I are Wee1 kinase inhibitors. Therefore, compounds of the disclosure may be used to treat diseases caused by abnormal Wee1 activity.
    Type: Application
    Filed: November 16, 2017
    Publication date: October 10, 2019
    Inventors: Sui Xiong CAI, Ye Edward TIAN
  • Publication number: 20190270732
    Abstract: Disclosed are 1-(arylmethyl)quinazoline-2,4(1H,3H)-diones represented by the Formula (I): wherein Ar, R1-R6 are defined herein. Compounds having Formula (I) are PARP inhibitors. Therefore, compounds of the invention may be used to treat clinical conditions that are responsive to the inhibition of PARP activity.
    Type: Application
    Filed: May 17, 2019
    Publication date: September 5, 2019
    Applicant: IMPACT Therapeutics, Inc.
    Inventors: Sui Xiong CAI, Ye Edward TIAN, Haijun DONG, Qingbing XU, Lizhen WU, Lijun LIU, Yangzhen JIANG, Qingli BAO, Guoxiang WANG, Feng YIN, Chengyun GU, Xiuhua HU, Xiaozhu WANG, Sishun KANG, Shengzhi CHEN
  • Publication number: 20190255042
    Abstract: This disclosure relates to application of hedgehog pathway inhibitor in treatment for fibrosis diseases. Specifically, the disclosure provides a method for treating and preventing fibrosis diseases. The method mentioned includes administering subjects in need with an effective amount of a hedgehog pathway inhibitor, wherein said hedgehog pathway inhibitor is a compound represented by the Formula (I) or a pharmaceutically acceptable salt or prodrug thereof: wherein C cyclic group, D1-D4, Q1, Q2, R5 are defined herein.
    Type: Application
    Filed: November 2, 2017
    Publication date: August 22, 2019
    Inventors: Sui Xiong CAI, Ye Edward TIAN
  • Patent number: 10316027
    Abstract: Disclosed are 1-(arylmethyl)quinazoline-2,4(1H,3H)-diones represented by the Formula (I): wherein Ar, R1-R6, are defined herein. Compounds having Formula (I) are PARP inhibitors. Therefore, compounds of the invention may be used to treat clinical conditions that are responsive to the inhibition of PARP activity.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: June 11, 2019
    Assignee: Impact Therapeutics, Inc.
    Inventors: Sui Xiong Cai, Ye Edward Tian, Haijun Dong, Qingbing Xu, Lizhen Wu, Lijun Liu, Yangzhen Jiang, Qingli Bao, Guoxiang Wang, Feng Yin, Chengyun Gu, Xiuhua Hu, Xiaozhu Wang, Sishun Kang, Shengzhi Chen
  • Publication number: 20180215741
    Abstract: Disclosed are 1-(arylmethyl)quinazoline-2,4(1H,3H)-diones represented by the Formula (I): wherein Ar, R1-R6, are defined herein. Compounds having Formula (I) are PARP inhibitors. Therefore, compounds of the invention may be used to treat clinical conditions that are responsive to the inhibition of PARP activity.
    Type: Application
    Filed: March 26, 2018
    Publication date: August 2, 2018
    Inventors: Sui Xiong CAI, Ye Edward TIAN, Haijun DONG, Qingbing XU, Lizhen WU, Lijun LIU, Yangzhen JIANG, Qingli BAO, Guoxiang WANG, Feng YIN, Chengyun GU, Xiuhua HU, Xiaozhu WANG, Sishun KANG, Shengzhi CHEN
  • Patent number: 9926304
    Abstract: Disclosed are 1-(arylmethyl)quinazoline-2,4(1H,3H)-diones represented by the Formula (I): wherein Ar, R1-R6 are defined herein. Compounds having Formula (I) are PARP inhibitors. Therefore, compounds of the invention may be used to treat clinical conditions that are responsive to the inhibition of PARP activity.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: March 27, 2018
    Assignee: Impact Therapeutics, Inc.
    Inventors: Sui Xiong Cai, Ye Edward Tian, Haijun Dong, Qingbing Xu, Lizhen Wu, Lijun Liu, Yangzhen Jiang, Qingli Bao, Guoxiang Wang, Feng Yin, Chengyun Gu, Xiuhua Hu, Xiaozhu Wang, Sishun Kang, Shengzhi Chen