Patents by Inventor Shengtao Yuan

Shengtao Yuan 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: 8957087
    Abstract: This present invention discloses a heterocyclic substituted acardite derivate and application thereof, namely compounds in the general formula (1) or the general formula (2) or pharmaceutically acceptable salts thereof, wherein A is monosubstituted or polysubstituted quinoline, isoquinoline, quinazoline, pyrrole or pyrimidine, and the substituent is halogen, C1-5alkyl, C1-5haloalkyl, C1-5alkoxy, C1-5haloalkoxy, C1-5alkylamino, C1-5haloalkylamino, amino or nitryl; R1 is C1-5alkyl; R2 is one or more selected from hydrogen, halogen, alkyl, alkoxy, haloalkyl or haloalkoxy; and R3 is one or more selected from hydrogen, halogen, alkyl, alkoxy, haloalkyl or haloalkoxy. The compound of the present invention and the pharmaceutically acceptable salt thereof can be used for treating tumor or leukemia.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: February 17, 2015
    Assignees: Jiangsu Provincial Institute of Materia Medica Co., Ltd., Nanjing Luyesike Pharmaceutical Co., Ltd.
    Inventors: Aihua Zhang, Shengtao Yuan, Guang Cheng, Yipeng Shen, Ancheng Ji
  • Patent number: 8637467
    Abstract: Provided is the composition of a peptide and its mutagenic version, or other derivatives with the same 3-D structure with activity to bind the extracellular domain of PDGFR-?, or -?, but does not dimerize by itself, wherein said peptide comprises the sequence shown as SEQ ID NO: 1, 2 or 3. Also provided is the composition of the nucleotide sequence encoding said peptide and its derivatives, and the usage of said peptide and derivatives of the peptide in preparation of medicine for the prevention and treatment of fibrosis diseases, such as liver, kidney, and lung fibrosis, primary cancer, and cancer metastasis, especially stomach cancer, liver cancer, breast cancer, and lung cancer.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: January 28, 2014
    Assignee: Wuxi MTLH Biotechnology Co., Ltd.
    Inventors: Lan Huang, Hua Zhou, Shengtao Yuan
  • Publication number: 20120053192
    Abstract: This present invention discloses a heterocyclic substituted acardite derivate and application thereof, namely compounds in the general formula (1) or the general formula (2) or pharmaceutically acceptable salts thereof, wherein A is monosubstituted or polysubstituted quinoline, isoquinoline, quinazoline, pyrrole or pyrimidine, and the substituent is halogen, C1-5alkyl, C1-5haloalkyl, C1-5alkoxy, C1-5haloalkoxy, C1-5alkylamino, C1-5haloalkylamino, amino or nitryl; R1 is C1-5alkyl; R2 is one or more selected from hydrogen, halogen, alkyl, alkoxy, haloalkyl or haloalkoxy; and R3 is one or more selected from hydrogen, halogen, alkyl, alkoxy, haloalkyl or haloalkoxy. The compound of the present invention and the pharmaceutically acceptable salt thereof can be used for treating tumor or leukemia.
    Type: Application
    Filed: May 4, 2010
    Publication date: March 1, 2012
    Applicants: Nanjing Luyesike Pharmaceutical Co., Ltd., Jiangsu Provincial Institute of Materia Medica Co. Ltd.
    Inventors: Aihua Zhang, Shengtao Yuan, Guang Cheng, Yipeng Shen, Ancheng Ji
  • Publication number: 20110263513
    Abstract: Provided is the composition of a peptide and its mutagenic version, or other derivatives with the same 3-D structure with activity to bind the extracellular domain of PDGFR-?, or -?, but does not dimerize by itself, wherein said peptide comprises the sequence shown as SEQ ID NO: 1, 2 or 3. Also provided is the composition of the nucleotide sequence encoding said peptide and its derivatives, and the usage of said peptide and derivatives of the peptide in preparation of medicine for the prevention and treatment of fibrosis diseases, such as liver, kidney, and lung fibrosis, primary cancer, and cancer metastasis, especially stomach cancer, liver cancer, breast cancer, and lung cancer.
    Type: Application
    Filed: September 21, 2009
    Publication date: October 27, 2011
    Inventors: Lan Huang, Hua Zhou, Shengtao Yuan
  • Patent number: 6887895
    Abstract: The invention relates to pseudolaric acid-B derivatives of general formula (I), wherein (a) R1 is cyano, heterocyclyl, COXR? or CON(R?)2, wherein X is O or NH, R? is H, cycloalkyl, alkyl, heterocyclic alkyl or arylalkyl, each R? is independently alkyl, cycloalkyl or heterocyclicalkyl; (b) R2 is H, alkylacyl, arylalkylacyl, arylacyl or heterocyclylacyl; (c) R3 is COXY, amino or halogen, wherein X is O or NH, Y is H, NH2, hydroxy, alkyl, cycloalkyl, heterocyclicalkyl, hetroatom-substituted alkyl, tertiary amino-substituted ammonioalkyl, aryl, arylalkyl or polyhydroxyalkyl. The invention also relates to processes for preparing such derivatives and antitumor or antifungal pharmaceutical compositions containing the same.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: May 3, 2005
    Assignee: Shanghai Institute of Materia Medica Chinese Academy of Science
    Inventors: Jianmin Yue, Shengping Yang, Jian Ding, Dong Xiao, Shengtao Yuan
  • Publication number: 20040235944
    Abstract: The invention relates to pseudolaric acid-B derivatives of general formula (I), wherein (a) R1 is cyano, heterocyclyl, COXR′ or CON(R′)2, wherein X is O or NH, R′ is H, cycloalkyl, alkyl, heterocyclic alkyl or arylalkyl, each R″ is independently alkyl, cycloalkyl or heterocyclicalkyl; (b) R2 is H, alkylacyl, arylalkylacyl, arylacyl or heterocyclylacyl; (c) R3 is COXY, amino or halogen, wherein X is O or NH, Y is H, NH2, hydroxy, alkyl, cycloalkyl, heterocyclicalkyl, hetroatom-substituted alkyl, tertiary amino-substituted ammonioalkyl, aryl, arylalkyl or polyhydroxyalkyl. The invention also relates to processes for preparing such derivatives and antitumor or antifungal pharmaceutical compositions containing the same.
    Type: Application
    Filed: February 13, 2004
    Publication date: November 25, 2004
    Inventors: Jianmin Yue, Shengping Yang, Jian Ding, Dong Xiao, Shengtao Yuan