Patents by Inventor Fajun Nan

Fajun Nan 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: 20250144127
    Abstract: Disclosed are a long-chain compound and the use thereof. The structure of the long-chain compound is as shown in formula (I). The compound can directly inhibit ACLY, has a significant therapeutic effect on metabolic diseases represented by hypercholesterolemia and non-alcoholic steatohepatitis, and can be used for developing and preparing therapeutic drugs for metabolic diseases such as hypercholesterolemia and non-alcoholic steatohepatitis.
    Type: Application
    Filed: September 21, 2022
    Publication date: May 8, 2025
    Inventor: Fajun NAN
  • Publication number: 20250122148
    Abstract: Disclosed are a high-selectivity KCNQ4 potassium channel agonist of formula I, a preparation method therefor and the use thereof. The compound further improves the KCNQ4 agonistic activity, and is still free of KCNQ2 agonistic activity, thus having excellent KCNQ4/KCNQ2 selectivity. The high-selectivity KCNQ4 agonist overcomes the defect of poor selectivity of existing potassium channel agonists, the activity is relatively increased, and the toxicity is remarkably reduced. The agonist also has a simpler structure and lower product cost, thereby having a better development prospect.
    Type: Application
    Filed: January 10, 2023
    Publication date: April 17, 2025
    Inventors: Fajun NAN, Zhaobing GAO, Wuheng DONG, Yueming ZHENG, Jintao WANG, Xiaoyu ZHOU, Huanan LIU, Haiyan XU
  • Publication number: 20250011272
    Abstract: A long-chain compound, a preparation method therefor and the use thereof are disclosed. The structure of said compound is represented by formula (I). The definition of each substituent in the formula is as set out in the description and claims. The compound can directly inhibit ACLY, inhibit lipid synthesis in primary hepatocytes, inhibit lipid de novo synthesis and histone acetylation in various cancer cells such as H358, and inhibit cancer cell proliferation. The compound may be used to prepare drugs that treat metabolic diseases such as hyperlipidemia and atherosclerosis or various cancers such as lung cancer, pancreatic cancer, breast cancer, ovarian cancer, liver cancer, intestinal cancer, brain cancer, and acute myeloid leukemia.
    Type: Application
    Filed: September 21, 2022
    Publication date: January 9, 2025
    Inventors: Fajun NAN, Jingya LI, Yi CHEN, Gaolei SONG, Zhifu XIE, Yanfen FANG, Mei ZHANG, Xinyu SUN, Lei CAO, Hui MA, Yurou YANG
  • Publication number: 20240351966
    Abstract: Provided are a class of alkylphenol compounds and a preparation method therefor. Specifically provided are a new alkyl polyphenol compound as represented by chemical formula I, and a preparation method therefor and the use thereof in the treatment of metabolic syndrome.
    Type: Application
    Filed: May 11, 2022
    Publication date: October 24, 2024
    Inventors: Fajun NAN, Jingya LI, Zheng ZHANG, Yanan DUAN, Yangming ZHANG, Dandan CHEN, Chengqiu DAI
  • Publication number: 20240342201
    Abstract: An asymmetric GPR84 antagonist and a use thereof, the GPR84 antagonist having a structure as shown in formula I. The compound represented by formula I has GPR84 antagonistic activity, can competitively inhibit GPR84 agonist-induced receptor activation, and can be used to treat various diseases associated with the high expression or hyperexcitability of GPR84, such as multiple sclerosis, inflammatory bowel disease, organ fibrosis, arthritis, etc.
    Type: Application
    Filed: July 13, 2022
    Publication date: October 17, 2024
    Inventors: Fajun NAN, Xin XIE, Shaoxian LI, Qing ZHANG, Linhai CHEN, Youchen FANG
  • Patent number: 11192916
    Abstract: Disclosed are a pentacyclic triterpene compound as shown in general formula (I) and a preparation method therefor. The compound has an effective antagonistic effect on FXR receptors.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: December 7, 2021
    Assignee: SHANGHAI INSTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF SCIENCES
    Inventors: Fajun Nan, Xin Xie, Chenlu Zhang, Shimeng Guo, Yangming Zhang, Siwei Wang
  • Patent number: 11098071
    Abstract: The present invention relates to a GPR84 receptor antagonist and use thereof. The GPR84 receptor antagonist of the present invention has a structure as represented by formula (I), the definitions of R1, R2, R3, R4, L1, L2, L3, L4, L5, L6, Y, Z, and rings A, B, C, and D are as described in the description and claims. The GPR84 receptor antagonist of the present invention can competitively inhibit the activation of the receptor caused by an agonist of GPR84, and can be used in the preparation of a medicament for treating related diseases caused by high expression or high excitability of GPR84 receptor, the diseases including multiple sclerosis, inflammatory bowel disease, arthritis and the like.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: August 24, 2021
    Assignee: SHANGHAI INSTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF SCIENCES
    Inventors: Fajun Nan, Xin Xie, Linhai Chen, Qing Zhang, Yufeng Xiao, Hui Yang
  • Patent number: 10766889
    Abstract: The invention describes an aryl-2,2?-tandem bisthiazole compound and a preparation method and the use thereof. In particular, disclosed in the present invention are an aryl-2,2?-tandem bisthiazole compound with the structure as shown in general formula I and the preparation method thereof and use thereof as a histone deacetylase inhibitor in the preparation of antitumor drugs.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: September 8, 2020
    Assignee: Shanghai Institute of Materia Medica, Chinese Academy of Sciences
    Inventors: Fajun Nan, Jia Li, Jian Ding, Meiyu Geng, Yangming Zhang, Yi Chen, Yubo Zhou, Chaojun Gong, Mingbo Su, Anhui Gao
  • Publication number: 20200231623
    Abstract: Disclosed are a pentacyclic triterpene compound as shown in general formula (I) and a preparation method therefor. The compound has an effective antagonistic effect on FXR receptors.
    Type: Application
    Filed: September 17, 2018
    Publication date: July 23, 2020
    Applicant: SHANGHAI INSTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF SCIENCES
    Inventors: Fajun NAN, Xin XIE, Chenlu ZHANG, Shimeng GUO, Yangming ZHANG, Siwei WANG
  • Publication number: 20200010492
    Abstract: The present invention relates to a GPR84 receptor antagonist and use thereof. The GPR84 receptor antagonist of the present invention has a structure as represented by formula (I), the definitions of R1, R2, R3, R4, L1, L2, L3, L4, L5, L6, Y, Z, and rings A, B, C, and D are as described in the description and claims. The GPR84 receptor antagonist of the present invention can competitively inhibit the activation of the receptor caused by an agonist of GPR84, and can be used in the preparation of a medicament for treating related diseases caused by high expression or high excitability of GPR84 receptor, the diseases including multiple sclerosis, inflammatory bowel disease, arthritis and the like.
    Type: Application
    Filed: February 28, 2016
    Publication date: January 9, 2020
    Inventors: Fajun NAN, Xin XIE, Linhai CHEN, Qing ZHANG, Yufeng XIAO, Hui YANG
  • Patent number: 10414713
    Abstract: The present invention relates to a class of fatty acid compounds, a preparation method thereof and use thereof. The fatty acid compounds have the structure of the formula I, which has the ability to activate APMK and inhibit the glucose output in mouse primary hepatocytes. The fatty acid compounds can be used in preparing a medicament for the treatment of obesity or diabetes.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: September 17, 2019
    Assignee: SHANGHAI INSTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF SCIENCES
    Inventors: Fajun Nan, Jia Li, Jingya Li, Mei Zhang, Zhifu Xie, Jingtao Wang, Dongdong Guo
  • Publication number: 20190211005
    Abstract: The invention describes an aryl-2,2?-tandem bisthiazole compound and a preparation method and the use thereof. In particular, disclosed in the present invention are an aryl-2,2?-tandem bisthiazole compound with the structure as shown in general formula I and the preparation method thereof and use thereof as a histone deacetylase inhibitor in the preparation of antitumor drugs.
    Type: Application
    Filed: August 24, 2017
    Publication date: July 11, 2019
    Inventors: Fajun NAN, Jia LI, Jian DING, Meiyu GENG, Yangming ZHANG, Yi CHEN, Yubo ZHOU, Chaojun GONG, Mingbo SU, Anhui GAO
  • Patent number: 10316008
    Abstract: The present invention provides a compound represented by general formula I or a pharmaceutical acceptable salt thereof, the preparation method therefor and the use thereof in preparing a medicine for treating a neurological disease, such as epilepsy, convulsion, neuropathic pain, acute ischemic stroke, and a neurodegenerative disease. The compound according to present invention has a better absorption in brain tissue when compared with RTG. In addition, the compound provided by present invention has not only a greatly enhanced efficacy, but also a neurotoxicity greatly lower than that of RTG, and thus possesses a wider safety window.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: June 11, 2019
    Assignee: SHANGHAI INSTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF SCIENCES
    Inventors: Fajun Nan, Min Li, Zhaobing Gao, Yangming Zhang, Haining Hu, Haiyan Xu, Huanan Liu, Xiaoping Pi
  • Patent number: 10278962
    Abstract: The present invention relates to a series of analogs of natural product Pyripyropene A represented by general formula I and a preparation method and use thereof. More particularly, the present invention relates to analogs of the natural product Pyripyropene A, a preparation method and use thereof as the acyl-CoA:cholesterol acyltransferase 2 (ACAT2) inhibitors for the treatment of cardiovascular diseases such as atherosclerosis and the like.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: May 7, 2019
    Assignee: SHANGHAI INSTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF SCIENCES
    Inventors: Fajun Nan, Boliang Li, Yang Zhan, Xiaowei Zhang, Ying Xiong, Xichan Hu, Yangming Zhang
  • Publication number: 20190039989
    Abstract: The present invention relates to a class of fatty acid compounds, a preparation method thereof and use thereof. The fatty acid compounds have the structure of the formula I, which has the ability to activate APMK and inhibit the glucose output in mouse primary hepatocytes. The fatty acid compounds can be used in preparing a medicament for the treatment of obesity or diabetes.
    Type: Application
    Filed: February 20, 2017
    Publication date: February 7, 2019
    Inventors: Fajun NAN, Jia LI, Jingya LI, Mei ZHANG, Zhifu XIE, Jingtao WANG, Dongdong GUO
  • Patent number: 10196389
    Abstract: Provided are a class of pyrazolone compounds and a use thereof. In particular, a compound represented by formula I is provided, wherein the definition of each variable group is as described in the description. The compounds of formula (I) have a direct AMPK-activating activity and can significantly promote the phosphorylation of AMPK and ACC of L6 myocytes and HepG2 cells in a dose-dependent manner.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: February 5, 2019
    Assignee: SHANGHAI INSTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF SCIENCES
    Inventors: Fajun Nan, Jia Li, Jingya Li, Mei Zhang, Dakai Chen, Lina Zhang, Runtao Zhang, Zhifu Xie
  • Patent number: 10077245
    Abstract: The present invention provides a compound represented by general formula I or a pharmaceutical acceptable salt thereof, the preparation method therefor and the use thereof in preparing a medicine for treating a neurological disease, such as epilepsy, convulsion, neuropathic pain, acute ischemic stroke, and a neurodegenerative disease. The compound according to present invention has a better absorption in brain tissue when compared with RTG. In addition, the compound provided by present invention has not only a greatly enhanced efficacy, but also a neurotoxicity greatly lower than that of RTG, and thus possesses a wider safety window.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: September 18, 2018
    Assignee: SHANGHAI INSTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF SCIENCES
    Inventors: Fajun Nan, Min Li, Zhaobing Gao, Yangming Zhang, Haining Hu, Haiyan Xu, Huanan Liu, Xiaoping Pi
  • Publication number: 20180237399
    Abstract: The present invention relates to a class of compounds represented by the formula I, or pharmaceutically acceptable salts thereof, methods for their preparation, and application as small molecule tools that function as GPR84 agonists, and their use in preparing a medicament for the treatment of septicemia.
    Type: Application
    Filed: November 1, 2016
    Publication date: August 23, 2018
    Inventors: Fajun NAN, Xin XIE, Yang LIU, Qing ZHANG, Linhai CHEN, Hui YANG
  • Publication number: 20180134677
    Abstract: The present invention provides a compound represented by general formula I or a pharmaceutical acceptable salt thereof, the preparation method therefor and the use thereof in preparing a medicine for treating a neurological disease, such as epilepsy, convulsion, neuropathic pain, acute ischemic stroke, and a neurodegenerative disease. The compound according to present invention has a better absorption in brain tissue when compared with RTG. In addition, the compound provided by present invention has not only a greatly enhanced efficacy, but also a neurotoxicity greatly lower than that of RTG, and thus possesses a wider safety window.
    Type: Application
    Filed: January 12, 2018
    Publication date: May 17, 2018
    Inventors: Fajun Nan, Min Li, Zhaobing Gao, Yangming Zhang, Haining Hu, Haiyan Xu, Huanan Liu, Xiaoping Pi
  • Publication number: 20180064696
    Abstract: The present invention relates to a series of analogues of natural product Pyripyropene A represented by general formula I and a preparation method and use thereof. More particularly, the present invention relates to analogues of the natural product Pyripyropene A, a preparation method and use thereof as the acyl-CoA:cholesterol acyltransferase 2 (ACAT2) inhibitors for the treatment of cardiovascular diseases such as atherosclerosis and the like.
    Type: Application
    Filed: March 3, 2016
    Publication date: March 8, 2018
    Inventors: Fajun NAN, Boliang LI, Yang ZHAN, Xiaowei ZHANG, Ying XIONG, Xichan HU, Yangming ZHANG