Patents by Inventor Zheming Wang

Zheming Wang 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: 12291515
    Abstract: The present invention discloses a pyrrolidine derivative or its optically active isomer, or a pharmaceutically acceptable salt thereof, which is useful as an NAMPT inhibitor, and useful as a potential agent for the chemotherapy of a variety of diseases associated with abnormal NAD+ expression. The pyrrolidine derivative has pyrrolidine as a parent structure, to which pyridinylurea (or substituted pyridinylurea) is attached by an intermediate aliphatic chain, and a side arylformyl (or heterocyclylformyl) group is attached. This structure is an optimized structure of the NAMPT inhibitor FK866, in which the acrylamido group is replaced by a urea structure, to increases the water solubility of the compound. Moreover, the difficulty in synthesis is reduced accordingly, which is conducive to the subsequent industrial production.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: May 6, 2025
    Assignees: Rushi Biotech (Hangzhou) Co., Ltd
    Inventors: Zheming Wang, Hao Tan
  • Patent number: 12091385
    Abstract: The present invention discloses a pyridinylcyanoguanidine derivative or a pharmaceutically acceptable salt thereof, which is useful as an NAMPT inhibitor, and useful as a potential agent for the chemotherapy of a variety of diseases associated with abnormal NAD+ expression. The pyridinylcyanoguanidine derivative has a parent structure including cyanoguanidine attached to piperazine or pyrrolidine by an intermediate aliphatic chain, to which a side arylformyl (or heterocyclylformyl) group and pyridinyl (or substituted pyridinyl) group are attached. This structure comes from the structural optimization of FK866, a high-efficiency NAMPT inhibitor. In the structure, the substituted formyl piperazine and substituted formyl pyrrolidine are the further optimizations on the basis of FK866, which strengthens the interaction with NAMPT.
    Type: Grant
    Filed: October 25, 2023
    Date of Patent: September 17, 2024
    Assignees: Rushi Biotech (Hangzhou) Co., Ltd
    Inventors: Zheming Wang, Hao Tan
  • Publication number: 20240067607
    Abstract: The present invention discloses a pyridinylcyanoguanidine derivative or a pharmaceutically acceptable salt thereof, which is useful as an NAMPT inhibitor, and useful as a potential agent for the chemotherapy of a variety of diseases associated with abnormal NAD expression. The pyridinylcyanoguanidine derivative has a parent structure including cyanoguanidine attached to piperazine or pyrrolidine by an intermediate aliphatic chain, to which a side arylformyl (or heterocyclylformyl) group and pyridinyl (or substituted pyridinyl) group are attached. This structure comes from the structural optimization of FK866, a high-efficiency NAMPT inhibitor. In the structure, the substituted formyl piperazine and substituted formyl pyrrolidine are the further optimizations on the basis of FK866, which strengthens the interaction with NAMPT.
    Type: Application
    Filed: October 25, 2023
    Publication date: February 29, 2024
    Inventors: Zheming Wang, Hao Tan
  • Patent number: 11873284
    Abstract: The present invention discloses a pyridinylcyanoguanidine derivative or a pharmaceutically acceptable salt thereof, which is useful as an NAMPT inhibitor, and useful as a potential agent for the chemotherapy of a variety of diseases associated with abnormal NAD+ expression. The pyridinylcyanoguanidine derivative has a parent structure including cyanoguanidine attached to piperazine or pyrrolidine by an intermediate aliphatic chain, to which a side arylformyl (or heterocyclylformyl) group and pyridinyl (or substituted pyridinyl) group are attached. This structure comes from the structural optimization of FK866, a high-efficiency NAMPT inhibitor. In the structure, the substituted formyl piperazine and substituted formyl pyrrolidine are the further optimizations on the basis of FK866, which strengthens the interaction with NAMPT.
    Type: Grant
    Filed: December 13, 2022
    Date of Patent: January 16, 2024
    Assignees: Rushi Biotech (Hangzhou) Co., Ltd
    Inventors: Zheming Wang, Hao Tan
  • Publication number: 20230192651
    Abstract: The present invention discloses a pyrrolidine derivative or its optically active isomer, or a pharmaceutically acceptable salt thereof, which is useful as an NAMPT inhibitor, and useful as a potential agent for the chemotherapy of a variety of diseases associated with abnormal NAD+ expression. The pyrrolidine derivative has pyrrolidine as a parent structure, to which pyridinylurea (or substituted pyridinylurea) is attached by an intermediate aliphatic chain, and a side arylformyl (or heterocyclylformyl) group is attached. This structure is an optimized structure of the NAMPT inhibitor FK866, in which the acrylamido group is replaced by a urea structure, to increases the water solubility of the compound. Moreover, the difficulty in synthesis is reduced accordingly, which is conducive to the subsequent industrial production.
    Type: Application
    Filed: December 13, 2022
    Publication date: June 22, 2023
    Inventors: Zheming Wang, Hao Tan
  • Publication number: 20230192615
    Abstract: The present invention discloses a pyridinylcyanoguanidine derivative or a pharmaceutically acceptable salt thereof, which is useful as an NAMPT inhibitor, and useful as a potential agent for the chemotherapy of a variety of diseases associated with abnormal NAD+ expression. The pyridinylcyanoguanidine derivative has a parent structure including cyanoguanidine attached to piperazine or pyrrolidine by an intermediate aliphatic chain, to which a side arylformyl (or heterocyclylformyl) group and pyridinyl (or substituted pyridinyl) group are attached. This structure comes from the structural optimization of FK866, a high-efficiency NAMPT inhibitor. In the structure, the substituted formyl piperazine and substituted formyl pyrrolidine are the further optimizations on the basis of FK866, which strengthens the interaction with NAMPT.
    Type: Application
    Filed: December 13, 2022
    Publication date: June 22, 2023
    Inventors: Zheming Wang, Hao Tan
  • Patent number: 9783468
    Abstract: A method for producing an aromatic hydrocarbon with an oxygenate as raw material, includes: i) reacting an oxygenate in at least one aromatization reactor to obtain an aromatization reaction product; ii) separating the aromatization reaction product to obtain a gas phase hydrocarbons flow X and a liquid phase hydrocarbons flow Y; iii) after removing gas and/or a part of the oxygenate from the gas phase hydrocarbons flow X, a hydrocarbons flow X1 containing a non-aromatic hydrocarbon is obtained; or after removing gas and/or a part of the oxygenate from the gas phase hydrocarbons flow X, a reaction is conducted in another aromatization reactor and a separation is conducted to obtain a flow X2 containing a non-aromatic hydrocarbon and a flow X3 containing an aromatic hydrocarbon. The flows are further treated.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: October 10, 2017
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC
    Inventors: Zheming Wang, Weimin Yang, Xiqiang Chen, Jingxian Xiao, Feng Xu
  • Patent number: 9339801
    Abstract: The present invention relates to a catalyst for the conversion of methanol to aromatics and the preparation of the same. The catalyst comprising 85 to 99 parts by weight of a ZSM-5 zeolite, 0.1 to 15 parts by weight of element M1, which is at least one selected from the group consisted of Ag, Zn and Ga, and 0 to 5 parts by weight of element M2, which is at least one selected from the group consisted of Mo, Cu, La, P, Ce and Co, wherein the total specific surface area of the catalyst ranges from 350 to 500 m2/g, and the micropore specific surface area ranges from 200 to 350 m2/g. The catalyst has high total specific surface area, micropore specific surface area and micropore volume. Good catalytic activity can be shown from the results of the reaction of aromatics preparation from methanol using the catalyst provided by the present invention.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: May 17, 2016
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology Sinopec
    Inventors: Xiqiang Chen, Zheming Wang, Jingxian Xiao, Feng Xu
  • Publication number: 20160122256
    Abstract: A method for producing an aromatic hydrocarbon with an oxygenate as raw material, includes: i) reacting an oxygenate in at least one aromatization reactor to obtain an aromatization reaction product; ii) separating the aromatization reaction product to obtain a gas phase hydrocarbons flow X and a liquid phase hydrocarbons flow Y; iii) after removing gas and/or a part of the oxygenate from the gas phase hydrocarbons flow X, a hydrocarbons flow X1 containing a non-aromatic hydrocarbon is obtained; or after removing gas and/or a part of the oxygenate from the gas phase hydrocarbons flow X, a reaction is conducted in another aromatization reactor and a separation is conducted to obtain a flow X2 containing a non-aromatic hydrocarbon and a flow X3 containing an aromatic hydrocarbon. The flows are further treated.
    Type: Application
    Filed: October 30, 2014
    Publication date: May 5, 2016
    Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC
    Inventors: Zheming WANG, Weimin Yang, Xiqiang Chen, Jingxian Xiao, Feng Xu
  • Publication number: 20140018592
    Abstract: The present invention relates to a catalyst for the conversion of methanol to aromatics and the preparation of the same. The catalyst comprising 85 to 99 parts by weight of a ZSM-5 zeolite, 0.1 to 15 parts by weight of element M1, which is at least one selected from the group consisted of Ag, Zn and Ga, and 0 to 5 parts by weight of element M2, which is at least one selected from the group consisted of Mo, Cu, La, P, Ce and Co, wherein the total specific surface area of the catalyst ranges from 350 to 500 m2/g, and the micropore specific surface area ranges from 200 to 350 m2/g. The catalyst has high total specific surface area, micropore specific surface area and micropore volume. Good catalytic activity can be shown from the results of the reaction of aromatics preparation from methanol using the catalyst provided by the present invention.
    Type: Application
    Filed: July 11, 2013
    Publication date: January 16, 2014
    Inventors: Xiqiang CHEN, Zheming Wang, Jinxian Xiao, Feng Xu
  • Patent number: 8309778
    Abstract: The present invention provides a catalyst comprising metallic Pt and/or Pd supported on a binder-free zeolite for producing light aromatic hydrocarbons and light alkanes from hydrocarbonaceous feedstock, wherein the amount of metallic Pt and/or Pd is of 0.01-0.8 wt %, preferably 0.01-0.5 wt % on the basis of the total weight of the catalyst, and the binder-free zeolite is selected from the group consisting of mordenite, beta zeolite, Y zeolite, ZSM-5, ZSM-11 and composite or cocrystal zeolite thereof. The present invention also provides a process for producing light aromatic hydrocarbons and light alkanes from hydrocarbonaceous feedstock using said catalyst.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: November 13, 2012
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology Sinopec
    Inventors: Deju Wang, Zhongneng Liu, Xueli Li, Minbo Hou, Zheming Wang, Jianqiang Wang
  • Publication number: 20120053382
    Abstract: The present invention provides a catalyst comprising metallic Pt and/or Pd supported on a binder-free zeolite for producing light aromatic hydrocarbons and light alkanes from hydrocarbonaceous feedstock, wherein the amount of metallic Pt and/or Pd is of 0.01-0.8 wt %, preferably 0.01-0.5 wt % on the basis of the total weight of the catalyst, and the binder-free zeolite is selected from the group consisting of mordenite, beta zeolite, Y zeolite, ZSM-5, ZSM-11 and composite or cocrystal zeolite thereof. The present invention also provides a process for producing light aromatic hydrocarbons and light alkanes from hydrocarbonaceous feedstock using said catalyst.
    Type: Application
    Filed: November 7, 2011
    Publication date: March 1, 2012
    Applicants: SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY SINOPEC, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Deju WANG, Zhongneng LIU, Xueli LI, Minbo HOU, Zheming WANG, Jianqiang WANG
  • Publication number: 20090023968
    Abstract: The present invention provides a catalyst comprising metallic Pt and/or Pd supported on a binder-free zeolite for producing light aromatic hydrocarbons and light alkanes from hydrocarbonaceous feedstock, wherein the amount of metallic Pt and/or Pd is of 0.01-0.8 wt %, preferably 0.01-0.5 wt % on the basis of the total weight of the catalyst, and the binder-free zeolite is selected from the group consisting of mordenite, beta zeolite, Y zeolite, ZSM-5, ZSM-11 and composite or cocrystal zeolite thereof. The present invention also provides a process for producing light aromatic hydrocarbons and light alkanes from hydrocarbonaceous feedstock using said catalyst.
    Type: Application
    Filed: July 18, 2008
    Publication date: January 22, 2009
    Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY SINOPEC
    Inventors: Deju WANG, Zhongneng LIU, Xueli LI, Minbo HOU, Zheming WANG, Jianqiang WANG