Patents by Inventor Buyu Kou

Buyu Kou 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).

  • Heteroaryl heterocyclyl compounds for the treatment of autoimmune disease
    Patent number: 11713327
    Abstract: The present invention relates to compounds of formula (I), ab (I), wherein R1 to R3 and L are as described herein, and their pharmaceutically acceptable salt, enantiomer or diastereomer thereof, and compositions including the compounds and methods of using the compounds.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: August 1, 2023
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Fabian Dey, Buyu Kou, Haixia Liu, Hong Shen, Xiaoqing Wang, Weixing Zhang, Zhisen Zhang, Zhiwei Zhang, Wei Zhu
  • PIPERIDINYL AMINE COMPOUNDS FOR THE TREATMENT OF AUTOIMMUNE DISEASE
    Publication number: 20220395496
    Abstract: The present invention relates to compounds of formula (I), wherein R1, R2, R3, R4 and R5 are as described herein, and their pharmaceutically acceptable salt, enantiomer or diastereomer thereof, and compositions including the compounds and methods of using the compounds.
    Type: Application
    Filed: September 14, 2020
    Publication date: December 15, 2022
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Taishan HU, Buyu KOU, Haixia LIU, Hong SHEN, Wei ZHU, Ge ZOU
  • HEXAHYDRO-1H-PYRAZINO[1,2-A]PYRAZINE COMPOUNDS FOR THE TREATMENT OF AUTOIMMUNE DISEASE
    Publication number: 20220340597
    Abstract: The present invention relates to compounds of formula (I), wherein R1 to R3, n and A are as described herein, and their pharmaceutically acceptable salt thereof, and compositions including the compounds and methods of using the compounds.
    Type: Application
    Filed: April 7, 2020
    Publication date: October 27, 2022
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Wei ZHU, Zhiwei ZHANG, Zhisen ZHANG, Hong SHEN, Yongfu LIU, Yafei LIU, Haixia LIU, Buyu KOU, Fabian DEY, Lue DAI, Linuo ZHU
  • Methods of synthesizing pyrazine compounds
    Patent number: 11168086
    Abstract: The present invention relates to compounds of the formula (I), or pharmaceutically acceptable salts, enantiomer or diastereomer thereof, wherein R1 to R4 are as described above. The compounds may be useful for the treatment or prophylaxis of hepatitis B virus infection.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: November 9, 2021
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Taishan Hu, Xingchun Han, Buyu Kou, Hong Shen, Shixiang Yan, Zhisen Zhang
  • NOVEL HETEROARYL HETEROCYCLYL COMPOUNDS FOR THE TREATMENT OF AUTOIMMUNE DISEASE
    Publication number: 20210300947
    Abstract: The present invention relates to compounds of formula (I), ab (I), wherein R1 to R3 and L are as described herein, and their pharmaceutically acceptable salt, enantiomer or diastereomer thereof, and compositions including the compounds and methods of using the compounds.
    Type: Application
    Filed: June 11, 2019
    Publication date: September 30, 2021
    Applicant: Hoffmann-La Roche Inc.
    Inventors: FABIAN DEY, BUYU KOU, HAIXIA LIU, HONG SHEN, XIAOQING WANG, WEIXING ZHANG, ZHISEN ZHANG, ZHIWEI ZHANG, WEI ZHU
  • CARBOXY TETRAHYDROPYRAZOLOPYRAZINE COMPOUNDS FOR THE TREATMENT OF INFECTIOUS DISEASES
    Publication number: 20200181156
    Abstract: The present invention relates to compounds of the formula (I), or pharmaceutically acceptable salts, enantiomer or diastereomer thereof, wherein R1 to R3 are as described above. The compounds may be useful for the treatment or prophylaxis of hepatitis B virus infection.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 11, 2020
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Taishan Hu, Buyu Kou, Haixia Liu, Zhisen Zhang, Zheng Zhou
  • 6-fused heteroaryldihydropyrimidines for the treatment and prophylaxis of hepatitis B virus infection
    Publication number: 20200062753
    Abstract: The invention provides novel compounds having the general formula: wherein R1, R2, R3, R4, R5, R6, X, Y, W and n are as described herein, compositions including the compounds and methods of using the compounds.
    Type: Application
    Filed: August 5, 2019
    Publication date: February 27, 2020
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Lei Guo, Taishan Hu, Buyu Kou, Xianfeng Lin, Hong Shen, Houguang Shi, Shixiang Yan, Weixing Zhang, Zhisen Zhang, Mingwei Zhou, Wei Zhu
  • Carboxy tetrahydropyrazolopyrazine compounds for the treatment of infectious diseases
    Patent number: 10562905
    Abstract: The present invention relates to compounds of the formula (I), or pharmaceutically acceptable salts, enantiomer or diastereomer thereof, wherein R1 to R3 are as described above. The compounds may be useful for the treatment or prophylaxis of hepatitis B virus infection.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: February 18, 2020
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Taishan Hu, Buyu Kou, Haixia Liu, Zhisen Zhang, Zheng Zhou
  • NOVEL CARBOXY TETRAHYDROPYRAZOLOPYRAZINE COMPOUNDS FOR THE TREATMENT OF INFECTIOUS DISEASES
    Publication number: 20190322670
    Abstract: The present invention relates to compounds of the formula (I), or pharmaceutically acceptable salts, enantiomer or diastereomer thereof, wherein R1 to R3 are as described above. The compounds may be useful for the treatment or prophylaxis of hepatitis B virus infection.
    Type: Application
    Filed: January 14, 2019
    Publication date: October 24, 2019
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Taishan Hu, Buyu Kou, Haixia Liu, Zhisen Zhang, Zheng Zhou
  • 6-fused heteroaryldihydropyrimidines for the treatment and prophylaxis of hepatitis B virus infection
    Patent number: 10428069
    Abstract: The invention provides novel compounds having the general formula: wherein R1, R2, R3, R4, R5, R6, X, Y, W and n are as described herein, compositions including the compounds and methods of using the compounds.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: October 1, 2019
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Lei Guo, Taishan Hu, Buyu Kou, Xianfeng Lin, Hong Shen, Houguang Shi, Shixiang Yan, Weixing Zhang, Zhisen Zhang, Mingwei Zhou, Wei Zhu
  • Novel 6-fused heteroaryldihydropyrimidines for the treatment and prophylaxis of hepatitis B virus infection
    Publication number: 20180370969
    Abstract: The invention provides novel compounds having the general formula: wherein R1, R2, R3, R4, R5, R6, X, Y, W and n are as described herein, compositions including the compounds and methods of using the compounds.
    Type: Application
    Filed: August 14, 2018
    Publication date: December 27, 2018
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Lei Guo, Taishan Hu, Buyu Kou, Xianfeng Lin, Hong Shen, Houguang Shi, Shixiang Yan, Weixing Zhang, Zhisen Zhang, Mingwei Zhou, Wei Zhu
  • NOVEL PYRAZINE COMPOUNDS FOR THE TREATMENT OF INFECTIOUS DISEASES
    Publication number: 20180334461
    Abstract: The present invention relates to compounds of the formula (I), or pharmaceutically acceptable salts, enantiomer or diastereomer thereof, wherein R1 to R4 are as described above. The compounds may be useful for the treatment or prophylaxis of hepatitis B virus infection.
    Type: Application
    Filed: December 19, 2017
    Publication date: November 22, 2018
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Taishan Hu, Xingchun Han, Buyu Kou, Hong Shen, Shixiang Yan, Zhisen Zhang
  • 6-fused heteroaryldihydropyrimidines for the treatment and prophylaxis of hepatitis B virus infection
    Patent number: 10081627
    Abstract: The invention provides novel compounds having the general formula: wherein R1, R2, R3, R4, R5, R6, X, Y, W and n are as described herein, compositions including the compounds and methods of using the compounds.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: September 25, 2018
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Lei Guo, Taishan Hu, Buyu Kou, Xianfeng Lin, Hong Shen, Houguang Shi, Shixiang Yan, Weixing Zhang, Zhisen Zhang, Mingwei Zhou, Wei Zhu
  • Pyrazine compounds for the treatment of infectious diseases
    Patent number: 9890167
    Abstract: The present invention relates to compounds of the formula (I), or pharmaceutically acceptable salts, enantiomer or diastereomer thereof, wherein R1 to R4 are as described above. The compounds may be useful for the treatment or prophylaxis of hepatitis B virus infection.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: February 13, 2018
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Taishan Hu, Xingchun Han, Buyu Kou, Hong Shen, Shixiang Yan, Zhisen Zhang
  • 6-bridged heteroaryldihydropyrimidines for the treatment and prophylaxis of hepatitis B virus infection
    Patent number: 9758530
    Abstract: The invention provides novel compounds having the general formula: wherein R1, R2, R3 and R4 are as defined in the description and in the claims, as well as or pharmaceutically acceptable salts, or tautomerism isomers, or enantiomers, or diastereomers thereof. The invention also contains compositions including the compounds and methods of using the compounds.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: September 12, 2017
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Lei Guo, Taishan Hu, Yimin Hu, Buelent Kocer, Buyu Kou, Gangqin Li, Xianfeng Lin, Haixia Liu, Hong Shen, Houguang Shi, Guolong Wu, Zhisen Zhang, Mingwei Zhou, Wei Zhu
  • NOVEL PYRAZINE COMPOUNDS FOR THE TREATMENT OF INFECTIOUS DISEASES
    Publication number: 20160237090
    Abstract: The present invention relates to compounds of the formula (I), or pharmaceutically acceptable salts, enantiomer or diastereomer thereof, wherein R1 to R4 are as described above. The compounds may be useful for the treatment or prophylaxis of hepatitis B virus infection.
    Type: Application
    Filed: January 15, 2016
    Publication date: August 18, 2016
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Taishan HU, Xingchun HAN, Buyu KOU, Hong SHEN, Shixiang YAN, Zhisen ZHANGHAI
  • NOVEL 6-BRIDGED HETEROARYLDIHYDROPYRIMIDINES FOR THE TREATMENT AND PROPHYLAXIS OF HEPATITIS B VIRUS INFECTION
    Publication number: 20160122363
    Abstract: The invention provides novel compounds having the general formula: wherein R1, R2, R3 and R4 are as defined in the description and in the claims, as well as or pharmaceutically acceptable salts, or tautomerism isomers, or enantiomers, or diastereomers thereof. The invention also contains compositions including the compounds and methods of using the compounds.
    Type: Application
    Filed: January 8, 2016
    Publication date: May 5, 2016
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Lei Guo, Taishan Hu, Yimin Hu, Buelent Kocer, Buyu Kou, Gangqin Li, Xianfeng Lin, Haixia Liu, Hong Shen, Houguang Shi, Guolong Wu, Zhisen Zhang, Mingwei Zhou, Wei Zhu
  • Novel 6-fused heteroaryldihydropyrimidines for the treatment and prophylaxis of hepatitis B virus infection
    Publication number: 20160083383
    Abstract: The invention provides novel compounds having the general formula: wherein R1, R2, R3, R4, R5, R6, X, Y, W and n are as described herein, compositions including the compounds and methods of using the compounds.
    Type: Application
    Filed: November 19, 2015
    Publication date: March 24, 2016
    Applicant: Hoffmann-La Roche Inc.
    Inventors: Lei Guo, Taishan Hu, Buyu Kou, Xianfeng Lin, Hong Shen, Houguang Shi, Shixiang Yan, Weixing Zhang, Zhisen Zhang, Mingwei Zhou, Wei Zhu
  • 6-bridged heteroaryldihydropyrimidines for the treatment and prophylaxis of hepatitis B virus infection
    Patent number: 9266904
    Abstract: The invention provides novel compounds having the general formula: wherein R1, R2, R3 and R4 are as defined in the description and in the claims, as well as or pharmaceutically acceptable salts, or tautomerism isomers, or enantiomers, or diastereomers thereof. The invention also contains compositions including the compounds and methods of using the compounds.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: February 23, 2016
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Lei Guo, Taishan Hu, Yimin Hu, Buelent Kocer, Buyu Kou, Gangqin Li, Xianfeng Lin, Haixia Liu, Hong Shen, Houguang Shi, Guolong Wu, Zhisen Zhang, Mingwei Zhou, Wei Zhu
  • 6-fused heteroaryldihydropyrimidines for the treatment and prophylaxis of hepatitis B virus infection
    Patent number: 9233978
    Abstract: The invention provides novel compounds having the general formula: wherein R1, R2, R3, R4, R5, R6, X, Y, W and n are as described herein, compositions including the compounds and methods of using the compounds.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: January 12, 2016
    Assignee: HOFFMANN-LA ROCHE INC.
    Inventors: Lei Guo, Taishan Hu, Buyu Kou, Xianfeng Lin, Hong Shen, Houguang Shi, Shixiang Yan, Weixing Zhang, Zhisen Zhang, Mingwei Zhou, Wei Zhu