Patents by Inventor Xiong Cai

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).

  • 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
  • Patent number: 11306102
    Abstract: Provided are a 1,3-di-substituted ketene compound having a structure as represented by formula (I) and an application thereof. Such a type of compound primarily activates peroxisome proliferator-activated receptor (PPAR) ?, and also activates PPPA? and PPPA?. The compound may be used to treat various diseases associated with PPAR regulation and control abnormality, such as non-alcoholic fatty liver disease, and especially in treating non-alcoholic hepatitis, and may potentially be used in the treatment of diseases comprising diabetes, obesity, fibrotic diseases, cardiovascular diseases (comprising heart failure, atherosclerosis, and so on), kidney diseases (comprising chronic kidney disease, renal failure, and so on), and brain degenerative diseases (comprising Alzheimer's disease and so on), having great application value.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: April 19, 2022
    Assignee: BEBETTER MED INC.
    Inventors: Xiong Cai, Changgeng Qian, Chunqiang Ye, Qijie He
  • Patent number: 11267802
    Abstract: Provided are a 2, 4-di-(nitrogen containing group) substituted pyrimidine compound represented by a general formula (I), a pharmaceutically acceptable salt and a stereoisomer thereof, a preparation method thereof, and a use thereof in preparation of anti-tumor drugs. The compound having a structural feature shown in the general formula (I) can selectively suppress activity of mutant epidermal growth factor receptors (EGFR), including single-mutant EGFR (T790M) and double-mutant EGFR (including L858R/T790M and ex19del/T790M), and can suppress activity of single gain-of-function mutant EGFR (including L858R and ex19del) as well. The compound has a weak suppression effect on wild-type EFGR and a very high selectivity, and thus it has a potential to be used in preparation of drugs for treating EGFR mutant tumors, especially non-small cell lung cancer (NSCLC) comprising a T790M EGFR mutation.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: March 8, 2022
    Assignee: BEBETTER MED INC.
    Inventors: Xiong Cai, Changgeng Qian, Yunwo Weng, Bin Liu, Yanyan Wang, Mingsheng Lin, Junqi Li, Yuanhui Qing, Huajin You, Shiqing Zhou, Weicai Xue
  • Patent number: 11261195
    Abstract: The instant application relates to deazapurines, thienopyrimidines and furopyrimidines with zinc-binding moiety based derivatives and their use in the treatment of phosphoinositide 3-kinase related diseases and disorders such as cancer. The instant application further relates to the treatment of histone deacetylase related disorders and diseases related to both histone deacetylase and phosphoinositide 3-kinase.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: March 1, 2022
    Assignee: Curis, Inc.
    Inventors: Xiong Cai, Haixiao Zhai, Chengjung Lai, Changgeng Qian
  • Patent number: 11135205
    Abstract: The invention provides a compound of Formula I, Pharmaceutical compositions comprising such compounds and the use of such compounds in the treatment of phosphoinositide 3-kinase related diseases and disorders such as cancer. The instant application further relates to the treatment of histone deacetylase related disorders and diseases related to both histone deacetylase and phosphoinositide 3-kinase.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: October 5, 2021
    Assignee: Curis, Inc.
    Inventors: Xiong Cai, Haixiao Zhai, Chengjung Lai, Changgeng Qian, Rudi Bao
  • Publication number: 20210292317
    Abstract: The present invention relates to HSP90 inhibitors containing fused amino pyridine core that are useful as inhibitors of HSP90 and their use in the treatment of HSP90 related diseases and disorders such as cancer, an autoimmune disease, or a neurodegenerative disease.
    Type: Application
    Filed: October 29, 2020
    Publication date: September 23, 2021
    Inventors: Xiong Cai, Changgeng Qian, Haixiao Zhai
  • Patent number: 11116767
    Abstract: The present invention provides compounds of formula (I) which are potent inhibitors of Chk1 and have the structural formula below: wherein R1, R2, R3, R4, and R5 are as defined herein. Pharmaceutical compositions comprising the compounds, uses thereof and their preparation process are also provided.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: September 14, 2021
    Assignee: PHARMAENGINE, INC.
    Inventors: Xiong Cai, Changgeng Qian, Yanong Daniel Wang
  • Publication number: 20210214370
    Abstract: The instant application relates to deazapurines, thienopyrimidines and furopyrimidines with zinc-binding moiety based derivatives and their use in the treatment of phosphoinositide 3-kinase related diseases and disorders such as cancer. The instant application further relates to the the treatment of histone deacetylase related disorders and diseases related to both histone deacetylase and phosphoinositide 3-kinase.
    Type: Application
    Filed: December 23, 2020
    Publication date: July 15, 2021
    Inventors: Xiong Cai, Haixiao Zhai, Chengjung Lai, Changgeng Qian
  • Publication number: 20210137918
    Abstract: The present invention provides compounds of formula (I) which are potent inhibitors of Chk1 and have the structural formula below: wherein R1, R2, R3, R4, and R5 are as defined herein. Pharmaceutical compositions comprising the compounds, uses thereof and their preparation process are also provided.
    Type: Application
    Filed: February 4, 2016
    Publication date: May 13, 2021
    Applicant: PHARMAENGINE, INC.
    Inventors: Xiong CAI, Changgeng QIAN, Yanong Daniel WANG
  • Publication number: 20210122761
    Abstract: Provided are a 1,3-di-substituted ketene compound having a structure as represented by formula (I) and an application thereof. Such a type of compound primarily activates peroxisome proliferator-activated receptor (PPAR) ?, and also activates PPPA? and PPPA?. The compound may be used to treat various diseases associated with PPAR regulation and control abnormality, such as non-alcoholic fatty liver disease, and especially in treating non-alcoholic hepatitis, and may potentially be used in the treatment of diseases comprising diabetes, obesity, fibrotic diseases, cardiovascular diseases (comprising heart failure, atherosclerosis, and so on), kidney diseases (comprising chronic kidney disease, renal failure, and so on), and brain degenerative diseases (comprising Alzheimer's disease and so on), having great application value.
    Type: Application
    Filed: June 29, 2018
    Publication date: April 29, 2021
    Inventors: Xiong CAI, Changgeng QIAN, Chunqiang YE, Qijie HE
  • Patent number: 10919899
    Abstract: Disclosed are an imidazopyrazine compound, a preparation method therefor and use thereof. Specifically, disclosed are a compound having a structure as represented by formula (I), a pharmaceutically acceptable salt, a stereoisomer or a prodrug thereof, and use of the compound, the pharmaceutically acceptable salt, the stereoisomer or the prodrug thereof in the preparation of a medicament. The medicament is used for preventing and/or treating diseases and/or conditions related to Bruton's tyrosine kinase overactivity in a subject. Further disclosed is use of the compound, the pharmaceutically acceptable salt, the stereoisomer or the prodrug thereof in the preparation of a formulation. The formulation is used for reducing or inhibiting the activity of the Bruton's tyrosine kinase in cells.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: February 16, 2021
    Assignee: DONGGUAN ZHENXING-BEITE MEDICINE TECHNOLOGY CO., LTD.
    Inventors: Xiong Cai, Xianbin Zhong, Chunqiang Ye, Qijie He, Shifeng Qin, Changgeng Qian
  • Patent number: 10894795
    Abstract: The instant application relates to deazapurines, thienopyrimidines and furopyrimidines with zinc-binding moiety based derivatives and their use in the treatment of phosphoinositide 3-kinase related diseases and disorders such as cancer. The instant application further relates to the the treatment of histone deacetylase related disorders and diseases related to both histone deacetylase and phosphoinositide 3-kinase.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: January 19, 2021
    Assignee: Curis, Inc.
    Inventors: Xiong Cai, Haixiao Zhai, Chengjung Lai, Changgeng Qian
  • 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: 10844056
    Abstract: The present invention relates to HSP90 inhibitors containing fused amino pyridine core that are useful as inhibitors of HSP90 and their use in the treatment of HSP90 related diseases and disorders such as cancer, an autoimmune disease, or a neurodegenerative disease.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: November 24, 2020
    Assignee: Curis, Inc.
    Inventors: Xiong Cai, Changgeng Qian, Haixiao Zhai
  • Publication number: 20200339593
    Abstract: The instant application relates to deazapurines, thienopyrimidines and furopyrimidines with zinc-binding moiety based derivatives and their use in the treatment of phosphoinositide 3-kinase related diseases and disorders such as cancer. The instant application further relates to the the treatment of histone deacetylase related disorders and diseases related to both histone deacetylase and phosphoinositide 3-kinase.
    Type: Application
    Filed: May 12, 2020
    Publication date: October 29, 2020
    Inventors: Xiong Cai, Haixiao Zhai, Chengjung Lai, Changgeng Qian
  • Publication number: 20200331891
    Abstract: Provided are a 2, 4-di-(nitrogen containing group) substituted pyrimidine compound represented by a general formula (I), a pharmaceutically acceptable salt and a stereoisomer thereof, a preparation method thereof, and a use thereof in preparation of anti-tumor drugs. The compound having a structural feature shown in the general formula (I) can selectively suppress activity of mutant epidermal growth factor receptors (EGFR), including single-mutant EGFR (T790M) and double-mutant EGFR (including L858R/T790M and ex19del/T790M), and can suppress activity of single gain-of-function mutant EGFR (including L858R and ex19del) as well. The compound has a weak suppression effect on wild-type EFGR and a very high selectivity, and thus it has a potential to be used in preparation of drugs for treating EGFR mutant tumors, especially non-small cell lung cancer (NSCLC) comprising a T790M EGFR mutation.
    Type: Application
    Filed: July 26, 2016
    Publication date: October 22, 2020
    Applicant: GUANGZHOU BEBETTER MEDICINE TECHNOLOGY CO., LTD.
    Inventors: Xiong CAI, Changgeng QIAN, Yunwo WENG, Bin LIU, Yanyan WANG, Mingsheng LIN, Junqi LI, Yuanhui QING, Huajin YOU, Shiqing ZHOU, Weicai XUE
  • Publication number: 20200215039
    Abstract: The invention provides a compound of Formula I, Pharmaceutical compositions comprising such compounds and the use of such compounds in the treatment of phosphoinositide 3-kinase related diseases and disorders such as cancer. The instant application further relates to the treatment of histone deacetylase related disorders and diseases related to both histone deacetylase and phosphoinositide 3-kinase.
    Type: Application
    Filed: January 7, 2020
    Publication date: July 9, 2020
    Inventors: Xiong Cai, Haixiao Zhai, Chengjung Lai, Changgeng Qian, Rudi Bao
  • 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
  • Patent number: 10676482
    Abstract: The instant application relates to deazapurines, thienopyrimidines and furopyrimidines with zinc-binding moiety based derivatives and their use in the treatment of phosphoinositide 3-kinase related diseases and disorders such as cancer. The instant application further relates to the treatment of histone deacetylase related disorders and diseases related to both histone deacetylase and phosphoinositide 3-kinase.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: June 9, 2020
    Assignee: CURIS, INC.
    Inventors: Xiong Cai, Haixiao Zhai, Chengjung Lai, Changgeng Qian
  • Publication number: 20200165227
    Abstract: Provided are a 2, 4-di-(nitrogen containing group) substituted pyrimidine compound represented by a general formula (I), a pharmaceutically acceptable salt and a stereoisomer thereof, a preparation method thereof, and a use thereof in preparation of anti-tumor drugs. The compound having a structural feature shown in the general formula (I) can selectively suppress activity of mutant epidermal growth factor receptors (EGFR), including single-mutant EGFR (T790M) and double-mutant EGFR (including L858R/T790M and ex19del/T790M), and can suppress activity of single gain-of-function mutant EGFR (including L858R and ex19del) as well. The compound has a weak suppression effect on wild-type EFGR and a very high selectivity, and thus it has a potential to be used in preparation of drugs for treating EGFR mutant tumors, especially non-small cell lung cancer (NSCLC) comprising a T790M EGFR mutation.
    Type: Application
    Filed: July 26, 2016
    Publication date: May 28, 2020
    Applicant: GUANGZHOU BEBETTER MEDICINE TECHNOLOGY CO., LTD.
    Inventors: Xiong CAI, Changgeng QIAN, Yunwo WENG, Bin LIU, Yanyan WANG, Mingsheng LIN, Junqi LI, Yuanhui QING, Huajin YOU, Shiqing ZHOU, Weicai XUE