Patents by Inventor Rifang Yang

Rifang Yang 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: 20230293537
    Abstract: The present invention relates to the use of an acetamide derivative in the prevention and treatment of Alzheimer's disease (AD).
    Type: Application
    Filed: July 6, 2021
    Publication date: September 21, 2023
    Inventors: Yunfeng Li, Liming Zhang, Rumeng Yao, Rifang Yang, Wei Dai
  • Patent number: 10889575
    Abstract: The invention belongs to the field of medicine and chemical industry and relates to a 4,4-diphenylpiperidine compound or a pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising the same and uses thereof. In particular, the invention relates to a compound of Formula I or a pharmaceutically acceptable salt thereof, and to a pharmaceutical composition comprising the compound or a pharmaceutically acceptable salt thereof. In the present invention, the compound or pharmaceutically acceptable salt thereof and the pharmaceutical composition have significant activity in blocking an N-type calcium channel, and have good pharmacokinetic properties, can effectively relieve pain, and have a potential as a new medicament for prevention or treatment of pain, stroke, cerebral ischemia, alcohol addiction, alcoholism, kidney disease, addictive disorder caused by analgesic or tolerance disorder caused by analgesic.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: January 12, 2021
    Assignee: Academy of Military Medical Sciences
    Inventors: Cheng Zhang, Haoshan Wang, Guoxing Dong, Ning Wu, Shuzhuo Zhang, Xiaomei Zhuang, Chong Pang, Juan Wang, Rifang Yang, Jianquan Zheng, Jin Li, Liuhong Yun
  • Publication number: 20190359604
    Abstract: The invention belongs to the field of medicine and chemical industry and relates to a 4,4-diphenylpiperidine compound or a pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising the same and uses thereof. In particular, the invention relates to a compound of Formula I or a pharmaceutically acceptable salt thereof, and to a pharmaceutical composition comprising the compound or a pharmaceutically acceptable salt thereof. In the present invention, the compound or pharmaceutically acceptable salt thereof and the pharmaceutical composition have significant activity in blocking an N-type calcium channel, and have good pharmacokinetic properties, can effectively relieve pain, and have a potentialas a new medicament for prevention or treatment of pain, stroke, cerebral ischemia, alcohol addiction, alcoholism, kidney disease, addictive disorder caused by analgesic or tolerance disorder caused by analgesic.
    Type: Application
    Filed: January 12, 2018
    Publication date: November 28, 2019
    Applicant: Academy of Military Medical Sciences
    Inventors: Cheng Zhang, Haoshan WANG, Guoxing DONG, Ning WU, Shuzhuo ZHANG, Xiaomei ZHUANG, Chong PANG, Juan WANG, Rifang YANG, Jianquan ZHENG, Jin LI, Liuhong YUN
  • Patent number: 9227944
    Abstract: The present invention relates to a novel piperazine derivative represented by Formula I having an activity for regulating dopamine D3 receptor, stereoisomers thereof, pharmaceutically acceptable salts or solvates, and a pharmaceutical composition comprising the compound, a process for preparing the same, and use thereof in the prevention or treatment of a disease associated with central nervous system dysfunction, such as Parkinson's disease, schizophrenia, drug addiction and relapse, as well as kidney protection and immunoregulation, or as a tool for researching D3R function or diseases associated with D3R dysfunction.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: January 5, 2016
    Assignee: INSTITUTE OF PHARMACOLOGY AND TOXICOLOGY ACADEMY OF MILITARY SCIENCE P.L.A. CHINA
    Inventors: Jin Li, Rifang Yang, Rui Song, Hui Zhu, Ning Wu, Liuhong Yun, Ruibin Su, Rusheng Zhao
  • Patent number: 8980887
    Abstract: Disclosed are 2-arylimidazo[1,2-a]pyridine-3-acetamide derivatives represented by formula I, their tautomer, racemate or optical isomer, their pharmaceutically acceptable salt, or their solvates, wherein R1, R2, R3 and R4 are defined as in the specification.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: March 17, 2015
    Assignees: Institute of Pharmacology, Toxicology Academy of Military Medical Sciences P.L.A., China
    Inventors: Rifang Yang, Yunfeng Li, Yongzhen Li, Nan Zhao, Liuhong Yun, Juanjuan Qin, Zhongyao Feng, Youzhi Zhang
  • Patent number: 8921563
    Abstract: Provided are N-[(4-hydroxypiperidin-4-yl)methyl]pyridin-2(1H)-one derivatives represented by formula I, stereoisomers, pharmaceutically acceptable salts or solvates thereof. The above compounds have the dual activities of 5-hydroxytryptamine 1A receptor ligand and selective serotonin reuptake inhibitor. The preparation methods of the above compounds, the uses of these compounds for the prevention or treatment of nervous system diseases related to 5-hydroxytryptamine system dysfunction and the pharmaceutical compositions containing these compounds are also provided.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: December 30, 2014
    Assignee: Institue of Pharmacology and Toxicology Academy of Military Medical Sciences P.L.A., China
    Inventors: Yunfeng Li, Rifang Yang, Youzhi Zhang, Yongzhen Li, Zengliang Jin, Peng Li, Li Yuan, Liuhong Yun, Nan Zhao, Cheng Zhang, Xiaodan Xu, Rusheng Zhao, Hongxia Chen, Rui Xue, Juanjuan Qin, Zhenzhen Wang, Jiazhi Yao
  • Publication number: 20140329831
    Abstract: The present invention relates to a novel piperazine derivative represented by Formula I having an activity for regulating dopamine D3 receptor, stereoisomers thereof, pharmaceutically acceptable salts or solvates, and a pharmaceutical composition comprising the compound, a process for preparing the same, and use thereof in the prevention or treatment of a disease associated with central nervous system dysfunction, such as Parkinson's disease, schizophrenia, drug addiction and relapse, as well as kidney protection and immunoregulation, or as a tool for researching D3R function or diseases associated with D3R dysfunction.
    Type: Application
    Filed: June 3, 2014
    Publication date: November 6, 2014
    Inventors: Jin LI, Rifang Yang, Rui Song, Hui Zhu, Ning Wu, Liuhong Yun, Ruibin Su, Rusheng Zhao
  • Patent number: 8829001
    Abstract: The present invention relates to a novel piperazine derivative represented by Formula I having an activity for regulating dopamine D3 receptor, stereoisomers thereof, pharmaceutically acceptable salts or solvates, and a pharmaceutical composition comprising the compound, a process for preparing the same, and use thereof in the prevention or treatment of a disease associated with central nervous system dysfunction, such as Parkinson's disease, schizophrenia, drug addiction and relapse, as well as kidney protection and immunoregulation, or as a tool for researching D3R function or diseases associated with D3R dysfunction.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: September 9, 2014
    Assignee: The Institute of Pharmacology and Toxicology Academy of Military Medical Science P.L.A. China
    Inventors: Jin Li, Rifang Yang, Rui Song, Hui Zhu, Ning Wu, Liuhong Yun, Ruibin Su, Rusheng Zhao
  • Publication number: 20130231369
    Abstract: Provided are N-[(4-hydroxypiperidin-4-yl)methyl]pyridin-2(1H)-one derivatives represented by formula I, stereoisomers, pharmaceutically acceptable salts or solvates thereof. The above compounds have the dual activities of 5-hydroxytryptamine 1A receptor ligand and selective serotonin reuptake inhibitor. The preparation methods of the above compounds, the uses of these compounds for the prevention or treatment of nervous system diseases related to 5-hydroxytryptamine system dysfunction and the pharmaceutical compositions containing these compounds are also provided.
    Type: Application
    Filed: April 8, 2011
    Publication date: September 5, 2013
    Applicant: Institute of Pharmacology and Toxicology Academy of Military Medical Sciences P.L.A. China
    Inventors: Yunfeng Li, Rifang Yang, Youzhi Zhang, Yongzhen Li, Zengliang Jin, Peng Li, Li Yuan, Liuhong Yun, Nan Zhao, Cheng Zhang, Xiaodan Xu, Rusheng Zhao, Hongxia Chen, Rui Xue, Juanjuan Qin, Zhenzhen Wang, Jiazhi Yao
  • Publication number: 20130203754
    Abstract: Disclosed are 2-arylimidazo[1,2-a]pyridine-3-acetamide derivatives represented by formula I, their tautomer, racemate or optical isomer, their pharmaceutically acceptable salt, or their solvates, wherein R1, R2, R3 and R4 are defined as in the specification.
    Type: Application
    Filed: June 9, 2011
    Publication date: August 8, 2013
    Applicant: Institute of Pharmacology and Toxicology Academy of Military Medical Sciences P.L.A. China
    Inventors: Rifang Yang, Yunfeng Li, Yongzhen Li, Nan Zhao, Liuhong Yun, Juanjuan Qin, Zhongyao Feng, Youzhi Zhang
  • Publication number: 20110319423
    Abstract: The present invention relates to a novel piperazine derivative represented by Formula I having an activity for regulating dopamine D3 receptor, stereoisomers thereof, pharmaceutically acceptable salts or solvates, and a pharmaceutical composition comprising the compound, a process for preparing the same, and use thereof in the prevention or treatment of a disease associated with central nervous system dysfunction, such as Parkinson's disease, schizophrenia, drug addiction and relapse, as well as kidney protection and immunoregulation, or as a tool for researching D3R function or diseases associated with D3R dysfunction.
    Type: Application
    Filed: September 28, 2009
    Publication date: December 29, 2011
    Applicant: Institute of Pharmacology and Toxicology Academy of Military Medical Science, P.L.A
    Inventors: Jin Li, Rifang Yang, Rui Song, Hui Zhu, Ning Wu, Liuhong Yun, Ruibin Su, Rusheng Zhao
  • Patent number: 7560473
    Abstract: The present invention provides amine derivatives represented by formula I, its isomers, racemes or optical isomers, pharmaceutical salts thereof, its amides or esters, pharmaceutical compositions containing said compounds and the preparation methods thereof. The invention also relates to the use of the above mentioned compounds in the preparation of drugs for the prophylaxis or treatment of cardiovascular diseases, diabetes, bronchial and urinary smooth muscle spasm as well as ischemic and anoxic nerve injury. The above compounds can be used to treat hypertension, angina diaphragmatic, myocardial infarction, congestive heart failure, arrhythmia, diabetes, spasmodic bronchial diseases, spasmodic bladder or ureter diseases, and depression.
    Type: Grant
    Filed: January 21, 2002
    Date of Patent: July 14, 2009
    Assignee: Institute of Pharmacology and Toxicology Academy of Military Medical Sciences, P.L.A.
    Inventors: Hai Wang, Liuhong Yun, Huasong Feng, Fulin Li, Xingchun Tang, Huamei He, Rifang Yang, Wenyu Cui, Qixiu Gao, Gang Hu, Rusheng Zhao, Wei Liu, Chaoliang Long, Lin Wang, Xinqiang Lu, Lijun Liu, Yuan Yan
  • Publication number: 20040266822
    Abstract: The present invention provides amine derivatives represented by formula I, its isomers, racemes or optical isomers, pharmaceutical salts thereof, its amides or esters, pharmaceutical compositions containing said compounds and the preparation methods thereof. The invention also relates to the use of the above mentioned compounds in the preparation of drugs for the prophylaxis or treatment of cardiovascular diseases, diabetes, bronchial and urinary smooth muscle spasm as well as ischemic and anoxic nerve injury. The above compounds can be used to treat hypertension, angina diaphragmatic, myocardial infarction, congestive heart failure, arrhythmia, diabetes, spasmodic bronchial diseases, spasmodic bladder or ureter diseases, and depression.
    Type: Application
    Filed: August 12, 2004
    Publication date: December 30, 2004
    Inventors: Hai Wang, Liuhong Yun, Huasong Feng, Fulin Li, Xingehun Tang, Huamei He, Rifang Yang, Wenyu Cui, Qixiu Gao, Gang Hu, Rusheng Zhao, Wei Liu, Chaoliang Long, Lin Wang, Xinqiang Lu, Lijun Liu, Yuan Yan