Patents by Inventor Sui Xiong Cai

Sui Xiong Cai 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: 20170050937
    Abstract: Disclosed are 4-arylamino-quinazolines and analogs thereof effective as activators of caspases and inducers of apoptosis. The compounds of this invention are useful in the treatment of a variety of clinical conditions in which uncontrolled growth and spread of abnormal cells occurs.
    Type: Application
    Filed: March 25, 2016
    Publication date: February 23, 2017
    Inventors: Sui Xiong Cai, Nilantha Sudath Sirisoma, Azra Pervin, John A. Drewe, Shailaja Kasibhatla, Songchun Jiang, Hong Zhang, Chris Pleiman, Vijay Baichwal, John Manfredi, Leena Bhoite
  • Publication number: 20160237070
    Abstract: Disclosed are 1-(arylmethyl)quinazoline-2,4(1H,3H)-diones represented by the Formula (I): wherein Ar, R1-R6 are defined herein. Compounds having Formula (I) are PARP inhibitors. Therefore, compounds of the invention may be used to treat clinical conditions that are responsive to the inhibition of PARP activity.
    Type: Application
    Filed: February 12, 2016
    Publication date: August 18, 2016
    Inventors: Sui Xiong CAI, Ye TIAN, Haijun DONG, Qingbing XU, Lizhen WU, Lijun LIU, Yangzhen JIANG, Qingli BAO, Guoxiang WANG, Feng YIN, Chengyun GU, Xiuhua HU, Xiaozhu WANG, Sishun KANG, Shengzhi CHEN
  • Patent number: 9290460
    Abstract: Disclosed are 1-(arylmethyl)quinazoline-2,4(1H,3H)-diones thereof, represented by the Formula (I) wherein Ar, R1-R6 are defined herein. Compounds having Formula (I) are PARP inhibitors. Therefore, compounds of the invention may be used to treat clinical conditions that are responsive to the inhibition of PARP activity.
    Type: Grant
    Filed: March 31, 2012
    Date of Patent: March 22, 2016
    Assignee: IMPACT THERAPEUTICS, INC.
    Inventors: Sui Xiong Cai, Ye Edward Tian, Xiuhua Hu
  • Publication number: 20140023642
    Abstract: Disclosed are 1-(arylmethyl)quinazoline-2,4(1H,3H)-diones thereof, represented by the Formula (I) wherein Ar, R1-R6 are defined herein. Compounds having Formula (I) are PARP inhibitors. Therefore, compounds of the invention may be used to treat clinical conditions that are responsive to the inhibition of PARP activity.
    Type: Application
    Filed: March 31, 2012
    Publication date: January 23, 2014
    Applicant: Impact Therapeutics, Inc.
    Inventors: Sui Xiong Cai, Ye Edward Tian, Haijun Dong, Qingbing Xu, Lizhen Wu, Lijun Liu, Yangzhen Jiang, Qingli Bao, Guoxiang Wang, Feng Yin, Chengyun Gu, Xiuhua Hu, Xiaozhu Wang, Sishun Kang, Shengzhi Chen
  • Publication number: 20130303568
    Abstract: The invention is directed to substituted 2-aminoacetamides represented by formula (II): and to pharmaceutically acceptable salts and prodrugs thereof, wherein the substituents are defined herein. The invention is also directed to the use of substituted 2-aminoacetamides in methods for the treatment of neuronal damage following global and focal ischemia, and for the treatment, prevention or amelioration of pain, anxiety, or manic depression, as anticonvulsants, as antimanic depressants, as local anesthetics, as antiarrhythmics and for the treatment or prevention of diabetic neuropathy.
    Type: Application
    Filed: April 22, 2013
    Publication date: November 14, 2013
    Inventors: Nancy C. LAN, Yan Wang, Sui Xiong Cai
  • Patent number: 8426431
    Abstract: The invention is directed to substituted 2-aminoacetamides represented by formula (II): and to pharmaceutically acceptable salts and prodrugs thereof, wherein the substituents are defined herein. The invention is also directed to the use of substituted 2-aminoacetamides in methods for the treatment of neuronal damage following global and focal ischemia, and for the treatment, prevention or amelioration of pain, anxiety, or manic depression, as anticonvulsants, as antimanic depressants, as local anesthetics, as antiarrhythmics and for the treatment or prevention of diabetic neuropathy.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: April 23, 2013
    Assignee: Purdue Neuroscience Company
    Inventors: Nancy C. Lan, Yan Wang, Sui Xiong Cai
  • Patent number: 8258145
    Abstract: Disclosed are 4-arylamino-quinazolines and analogs thereof effective as activators of caspases and inducers of apoptosis. The compounds of this invention are useful in the treatment of a variety of clinical conditions in which uncontrolled growth and spread of abnormal cells occurs, and in particular to the use of these compounds in treating brain cancer.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: September 4, 2012
    Assignee: Myrexis, Inc.
    Inventors: Sui Xiong Cai, Mark B. Anderson, Adam Willardsen, Nilantha Sudath Sirisoma
  • Publication number: 20110269785
    Abstract: The invention is directed to substituted 2-aminoacetamides represented by formula (II): and to pharmaceutically acceptable salts and prodrugs thereof, wherein the substituents are defined herein. The invention is also directed to the use of substituted 2-aminoacetamides in methods for the treatment of neuronal damage following global and focal ischemia, and for the treatment, prevention or amelioration of pain, anxiety, or manic depression, as anticonvulsants, as antimanic depressants, as local anesthetics, as antiarrhythmics and for the treatment or prevention of diabetic neuropathy.
    Type: Application
    Filed: January 7, 2011
    Publication date: November 3, 2011
    Applicant: Purdue Neuroscience Company
    Inventors: Nancy C. Lan, Yan Wang, Sui Xiong Cai
  • Patent number: 7989462
    Abstract: Disclosed are 4-arylamino-quinazolines and analogs thereof effective as activators of caspases and inducers of apoptosis. The compounds of this invention are useful in the treatment of a variety of clinical conditions in which uncontrolled growth and spread of abnormal cells occurs.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: August 2, 2011
    Assignee: Myrexis, Inc.
    Inventors: Sui Xiong Cai, Mark B. Anderson, Adam Willardsen, Nilantha Sudath Sirisoma, Hong Zhang, Kazuyuki Suzuki
  • Patent number: 7968595
    Abstract: The present invention is directed to a substituted 4H-chromene represented by the Formula 1R, substantially free from the corresponding (S)-stereoisomer: The present invention also relates to the discovery that compound 1R, substantially free from the corresponding (S)-stereoisomer, is an activator of caspases and inducer of apoptosis, as well as an antivascular agent. Therefore, compound 1R, substantially free from the corresponding (S)-stereoisomer, can be used to induce cell death in a variety of clinical conditions in which uncontrolled growth and spread of abnormal cells occurs. Compound 1R, substantially free from the corresponding (S)-stereoisomer, also can be used for the treatment of diseases due to overgrowth of vasculature, such as solid tumors and ocular neovascularization.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: June 28, 2011
    Assignee: Cytovia, Inc.
    Inventors: Sui Xiong Cai, John A. Drewe, Shailaja Kasibhatla, William D. Kemnitzer, Ben Y. Tseng, Charles Blais, Denis Labrecque, Henriette Gourdeau
  • Patent number: 7872127
    Abstract: The invention is directed to substituted 2-aminoacetamides represented by formula (II): and to pharmaceutically acceptable salts and prodrugs thereof, wherein the substituents are defined herein. The invention is also directed to the use of substituted 2-aminoacetamides in methods for the treatment of neuronal damage following global and focal ischemia, and for the treatment, prevention or amelioration of pain, as anticonvulsants, as antimanic depressants, as local anesthetics, as antiarrhythmics and for the treatment or prevention of diabetic neuropathy.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: January 18, 2011
    Assignee: Purdue Neuroscience Company
    Inventors: Nancy C. Lan, Yan Wang, Sui Xiong Cai
  • Patent number: 7842805
    Abstract: Disclosed are 1-arylamino-phthalazines, 4-arylamino-benzo[d][1,2,3]triazines, and analogs thereof effective as activators of caspases and inducers of apoptosis. The compounds of this invention are useful in the treatment of a variety of clinical conditions in which uncontrolled growth and spread of abnormal cells occurs.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: November 30, 2010
    Assignees: Myrexis, Inc., EpiCept Corporation
    Inventors: Sui Xiong Cai, Mark B. Anderson, Adam Willardsen, Songchun Jiang, Robert J. Halter, Rachel Slade, Yevgeniya Klimova
  • Patent number: 7732468
    Abstract: Disclosed are 3-aryl-6-aryl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazoles and related compounds thereof, represented by the Formula I: wherein Ar1, Ar2, and X are defined herein. The present invention relates to the discovery that compounds having Formula I are activators of caspases and inducers of apoptosis. Therefore, the activators of caspases and inducers of apoptosis of this invention may be used to induce cell death in a variety of clinical conditions in which uncontrolled growth and spread of abnormal cells occurs.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: June 8, 2010
    Assignee: Cytovia, Inc.
    Inventors: Sui Xiong Cai, John A. Drewe, Nilantha Sudath Sirisoma, Han-Zhong Zhang
  • Patent number: 7622497
    Abstract: The present invention is directed to novel derivatives of gambogic acid and analogs thereof. The present invention also relates to the discovery that novel derivatives of gambogic acid are activators of caspases and inducers of apoptosis. Therefore, the activators of caspases and inducers of apoptosis of this invention can be used to induce cell death in a variety of clinical conditions in which uncontrolled growth and spread of abnormal cells occurs.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: November 24, 2009
    Assignee: Cytovia, Inc.
    Inventors: Sui Xiong Cai, Songchun Jiang, Han-Zhong Zhang
  • Patent number: 7618975
    Abstract: Disclosed are 4-arylamino-quinazolines and analogs thereof effective as activators of caspases and inducers of apoptosis. The compounds of this invention are useful in the treatment of a variety of clinical conditions in which uncontrolled growth and spread of abnormal cells occurs.
    Type: Grant
    Filed: July 6, 2004
    Date of Patent: November 17, 2009
    Assignees: Myriad Pharmaceuticals, Inc., Cytovia, Inc.
    Inventors: Sui Xiong Cai, Nilantha Sudath Sirisoma, Azra Pervin, John A. Drewe, Shailaja Kasibhatla, Songchun Jiang, Hong Zhang, Chris Pleiman
  • Publication number: 20090240053
    Abstract: The invention is directed to substituted 2-aminoacetamides represented by formula (II): and to pharmaceutically acceptable salts and prodrugs thereof, wherein the substituents are defined herein. The invention is also directed to the use of substituted 2-aminoacetamides in methods for the treatment of neuronal damage following global and focal ischemia, and for the treatment, prevention or amelioration of pain, as anticonvulsants, as antimanic depressants, as local anesthetics, as antiarrhythmics and for the treatment or prevention of diabetic neuropathy.
    Type: Application
    Filed: May 28, 2009
    Publication date: September 24, 2009
    Applicant: Purdue Neuroscience Company
    Inventors: Nancy C. Lan, Yan Wang, Sui Xiong Cai
  • Patent number: 7592143
    Abstract: The present invention relates to screening methods useful for drug discovery of apoptosis inducing compounds. In particular, the screening methodology relates to using Apoptosis Inducing Proteins (AIPs) as a target for the discovery of apoptosis activators useful as anticancer agents. The screening methods of the present invention can employ homogenous or heterogeneous binding assays using purified or partially purified AIPs; or whole cell assays using cells with altered levels of one or more AIPs. The invention also contemplates use of gambogic acid or GA-related compounds which bind AIPs and can accordingly be used to raise antibodies useful for drug discovery. Alternatively, labeled GA is used for competitive binding assays for drug discovery. Such assays afford high throughput screening of chemical libraries for apoptosis activators.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: September 22, 2009
    Assignee: Cytovia, Inc.
    Inventors: Shailaja Kasibhatla, Sui Xiong Cai, Ben Tseng, Katayoun Alavi Jessen, Nicole Marion English, Serguei Maliartchouk, Songchun Jiang, Nilantha Sudath Sirisoma, Han-Zhong Zhang, Jared Kuemmerle
  • Patent number: 7541465
    Abstract: The invention is directed to substituted 2-aminoacetamides represented by formula (II): and to pharmaceutically acceptable salts and prodrugs thereof, wherein the substituents are defined herein. The invention is also directed to the use of substituted 2-aminoacetamides in methods for the treatment of neuronal damage following global and focal ischemia, and for the treatment, prevention or amelioration of pain, as anticonvulsants, as antimanic depressants, as local anesthetics, as antiarrhythmics and for the treatment or prevention of diabetic neuropathy.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: June 2, 2009
    Assignee: Purdue Neuroscience Company
    Inventors: Nancy Lan, Yan Wang, Sui Xiong Cai
  • Patent number: 7528164
    Abstract: The present invention is directed to substituted 4H-chromenes and analogs thereof, represented by the Formula (I): wherein R1, R3-R5, A, D, Y and Z are defined herein. The present invention also relates to the discovery that compounds having Formula (I) are activators of caspases and inducers of apoptosis. Therefore, the activators of caspases and inducers of apoptosis of this invention can be used to induce cell death in a variety of clinical conditions in which uncontrolled growth and spread of abnormal cells occurs.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: May 5, 2009
    Assignees: Cytovia, Inc., Shire BioChem, Inc.
    Inventors: Sui Xiong Cai, Songchun Jiang, William E. Kemnitzer, Hong Zhang, Giorgio Attardo, Real Denis
  • Patent number: 7507762
    Abstract: The present invention is directed to substituted 4H-chromene and analogs thereof, represented by the general Formula I: wherein A, B, X, Y, Z and R5 are defined herein. The present invention also relates to the discovery that compounds having Formula I are activators of caspases and inducers of apoptosis. Therefore, the activators of caspases and inducers of apoptosis of this invention can be used to induce cell death in a variety of clinical conditions in which uncontrolled growth and spread of abnormal cells occurs.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: March 24, 2009
    Assignee: Cytovia, Inc.
    Inventors: John A. Drewe, Sui Xiong Cai, Yan Wang