Patents by Inventor Yun Gao

Yun Gao 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: 20090062250
    Abstract: The present invention provides analogs of benzoquinone-containing ansamycins and uses thereof for treating and modulating disorders associated with hyperproliferation, such as cancer. The present invention provides analogs of benzoquinone-containing ansamycins where the benzoquinone is reduced to a hydroquinone and trapped by reaction with a suitable acid, preferably ones that increase the solubility and air stability of the resulting 17-ammonium hydroquinone ansamycin analog.
    Type: Application
    Filed: August 27, 2008
    Publication date: March 5, 2009
    Inventors: Julian Adams, Yun Gao, Asimina T. Georges Evangelinos, Louis Grenier, Roger H. Pak, James R. Porter, James L. Wright
  • Patent number: 7375217
    Abstract: The present invention provides analogs of benzoquinone-containing ansamycins and uses thereof for treating and modulating disorders associated with hyperproliferation, such as cancer. The present invention provides analogs of benzoquinone-containing ansamycins where the benzoquinone is reduced to a hydroquinone and trapped by reaction with a suitable acid, preferably ones that increase the solubility and air stability of the resulting 17-ammonium hydroquinone ansamycin analog.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: May 20, 2008
    Assignee: Infinity Pharmaceuticals, Inc.
    Inventors: Julian Adams, Yun Gao, Asimina T. Georges Evangelinos, Louis Grenier, Roger H. Pak, James R. Porter, James L. Wright
  • Patent number: 7361647
    Abstract: The present invention provides analogs of benzoquinone-containing ansamycins and uses thereof for treating and modulating disorders associated with hyperproliferation, such as cancer. The present invention provides analogs of benzoquinone-containing ansamycins where the benzoquinone is reduced to a hydroquinone and trapped by reaction with a suitable acid, preferably ones that increase the solubility and air stability of the resulting 17-ammonium hydroquinone ansamycin analog.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: April 22, 2008
    Assignee: Infinity Pharmaceuticals, Inc.
    Inventors: Julian Adams, Yun Gao, Asimina T. Georges Evangelinos, Louis Grenier, Roger H. Pak, James R. Porter, James L. Wright
  • Patent number: 7282493
    Abstract: The present invention provides analogs of benzoquinone-containing ansamycins and uses thereof for treating and modulating disorders associated with hyperproliferation, such as cancer. The present invention provides analogs of benzoquinone-containing ansamycins where the benzoquinone is reduced to a hydroquinone and trapped by reaction with a suitable acid, preferably ones that increase the solubility and air stability of the resulting 17-ammonium hydroquinone ansamycin analog.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: October 16, 2007
    Assignee: Infinity Pharmaceuticals, Inc.
    Inventors: Julian Adams, Yun Gao, Asimina T. Georges Evangelinos, Louis Grenier, Roger H. Pak, James R. Porter, James L. Wright
  • Publication number: 20060019939
    Abstract: The present invention provides analogs of benzoquinone-containing ansamycins and uses thereof for treating and modulating disorders associated with hyperproliferation, such as cancer. The present invention provides analogs of benzoquinone-containing ansamycins where the benzoquinone is reduced to a hydroquinone and trapped by reaction with a suitable acid, preferably ones that increase the solubility and air stability of the resulting 17-ammonium hydroquinone ansamycin analog.
    Type: Application
    Filed: April 13, 2005
    Publication date: January 26, 2006
    Inventors: Julian Adams, Yun Gao, Asimina Evangelinos, Louis Grenier, Roger Pak, James Porter, James Wright
  • Publication number: 20060019941
    Abstract: The present invention provides analogs of benzoquinone-containing ansamycins and uses thereof for treating and modulating disorders associated with hyperproliferation, such as cancer. The present invention provides analogs of benzoquinone-containing ansamycins where the benzoquinone is reduced to a hydroquinone and trapped by reaction with a suitable acid, preferably ones that increase the solubility and air stability of the resulting 17-ammonium hydroquinone ansamycin analog.
    Type: Application
    Filed: July 13, 2005
    Publication date: January 26, 2006
    Applicant: Infinity Pharmaceuticals, Inc.
    Inventors: Julian Adams, Yun Gao, Asimina Evangelinos, Louis Grenier, Roger Pak, James Porter, James Wright
  • Publication number: 20060014731
    Abstract: The present invention provides analogs of benzoquinone-containing ansamycins and uses thereof for treating and modulating disorders associated with hyperproliferation, such as cancer. The present invention provides analogs of benzoquinone-containing ansamycins where the benzoquinone is reduced to a hydroquinone and trapped by reaction with a suitable acid, preferably ones that increase the solubility and air stability of the resulting 17-ammonium hydroquinone ansamycin analog.
    Type: Application
    Filed: April 14, 2005
    Publication date: January 19, 2006
    Inventors: Julian Adams, Yun Gao, Asimina Georges Evangelinos, Louis Grenier, Roger Pak, James Porter, James Wright
  • Publication number: 20050288269
    Abstract: The present invention provides analogs of benzoquinone-containing ansamycins and uses thereof for treating and modulating disorders associated with hyperproliferation, such as cancer. The present invention provides analogs of benzoquinone-containing ansamycins where the benzoquinone is reduced to a hydroquinone and trapped by reaction with a suitable acid, preferably ones that increase the solubility and air stability of the resulting 17-ammonium hydroquinone ansamycin analog.
    Type: Application
    Filed: April 14, 2005
    Publication date: December 29, 2005
    Inventors: Julian Adams, Yun Gao, Asimina Georges Evangelinos, Louis Grenier, Roger Pak, James Porter, James Wright
  • Publication number: 20050227955
    Abstract: The present invention provides analogs of benzoquinone-containing ansamycins and uses thereof for treating and modulating disorders associated with hyperproliferation, such as cancer. The present invention provides analogs of benzoquinone-containing ansamycins where the benzoquinone is reduced to a hydroquinone and trapped by reaction with a suitable acid, preferably ones that increase the solubility and air stability of the resulting 17-ammonium hydroquinone ansamycin analog.
    Type: Application
    Filed: December 23, 2004
    Publication date: October 13, 2005
    Inventors: Julian Adams, Yun Gao, Asimina Evangelinos, Louis Grenier, Roger Pak, James Porter, James Wright
  • Publication number: 20040073414
    Abstract: A method and system to decode neural activity in the motor cortex to infer at least the position and velocity of a subject's hand from neural spiking activity of some number of nerve cells. In one embodiment the method includes simultaneously recording electrical activity of the nerve cells in the primary motor cortex to obtain neural data; and modeling the encoding and decoding of the neural data using a Kalman filter, where a measurement model assumes a cell firing rate to be a stochastic linear function of at least the position and velocity of the hand, and where the measurement model is learned from training data in conjunction with a system model that encodes a manner in which the hand moves.
    Type: Application
    Filed: June 4, 2003
    Publication date: April 15, 2004
    Applicant: Brown University Research Foundation
    Inventors: Lucien J.E. Bienenstock, Michael J. Black, Wei Wu, Yun Gao
  • Patent number: 6429311
    Abstract: The present invention is directed to certain N-amino- and N-hydroxy-quinazolinone compounds and synthetic methods for synthesis thereof, which compounds may find use in combinatorial libraries. More specifically, the invention is directed to the synthesis of 3-hydroxy- and 3-amino-4 (1H)-quinazolinones via the reaction of an appropriate 2-aminobenzamide compound with a carboxylic acid or acyl halide at ambient temperature performed on a solid support or in solution.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: August 6, 2002
    Assignee: Sepracor Inc.
    Inventor: Yun Gao
  • Publication number: 20020082268
    Abstract: The present invention relates to compounds capable of inhibiting leukotriene activity and histamine activity, and their use in treating asthma and allergic conditions such as hay fever, dermatitus, and urticaria. Inhibition of both pathways permits more effective treatment of conditions with fewer side effects than can be achieved using most available antihistamines alone.
    Type: Application
    Filed: March 20, 2001
    Publication date: June 27, 2002
    Inventors: Yun Gao, Paul Rubin, Nie Xiaoyi, Charles M. Zepp
  • Publication number: 20010018518
    Abstract: The present invention is directed to certain N-amino- and N-hydroxy-quinazolinone compounds and synthetic methods for synthesis thereof, which compounds may find use in combinatorial libraries. More specifically, the invention is directed to the synthesis of 3-hydroxy- and 3-amino-4(1H)-quinazolinones via the reaction of an appropriate 2-aminobenzamide compound with a carboxylic acid or acyl halide at ambient temperature performed on a solid support or in solution.
    Type: Application
    Filed: February 1, 2001
    Publication date: August 30, 2001
    Inventor: Yun Gao
  • Patent number: 6274383
    Abstract: Synthetic methods for solution and solid-phase synthesis of combinatorial libraries of dihydro-quinazolinones, including synthesis of 2,3-dihydro-3-alkoxy-4(1H)-quinazolinones or 2,3-dihydro-3-hydroxy-4(1H)-quinazolinones via the Lewis-acid catalyzed reaction of an appropriate 2-aminobenzamide with an aldehyde at ambient temperature performed on a solid support or in solution.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: August 14, 2001
    Assignee: Sepracor Inc.
    Inventor: Yun Gao
  • Patent number: 6268533
    Abstract: A method is disclosed for the preparation of optically pure isomers of formoterol by the reaction of an optically pure 4-benzyloxy-3-formamidostyrene oxide with an optically pure 4-methoxy-&agr;-methyl-N-(phenylmethyl)benzeneethanamine followed by debenzylation. Useful intermediates in the process are also disclosed, as are the novel L-tartrate salt of R,R-formoterol and pharmaceutical compositions thereof.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: July 31, 2001
    Assignee: Sepracor Inc.
    Inventors: Yun Gao, Robert Hett, Kevin Q. Fang, Stephen A. Wald, Chris Hugh Senanayake
  • Patent number: 6184377
    Abstract: The present invention is directed to certain N-amino- and N-hydroxy-quinazolinone compounds and synthetic methods for synthesis thereof, which compounds may find use in combinatorial libraries. More specifically, the invention is directed to the synthesis of 3-hydroxy- and 3-amino-4(1H)-quinazolinones via the reaction of an appropriate 2-aminobenzamide compound with a carboxylic acid or acyl halide at ambient temperature performed on a solid support or in solution.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: February 6, 2001
    Assignee: Sepracor Inc.
    Inventor: Yun Gao
  • Patent number: 6040344
    Abstract: A method is disclosed for the preparation of optically pure isomers of formoterol by the reaction of an optically pure 4-benzyloxy-3-formamidostyrene oxide with an optically pure 4-methoxy-.alpha.-methyl-N-(phenylmethyl)benzeneethanamine followed by debenzylation. Useful intermediates in the process are also disclosed, as are the novel L-tartrate salt of R,R-formoterol and pharmaceutical compositions thereof.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: March 21, 2000
    Assignee: Sepracor Inc.
    Inventors: Yun Gao, Robert Hett, Kevin Q. Fang, Stephen A. Wald, Martin P. Redmon, Chris Hugh Senanayake
  • Patent number: 5760251
    Abstract: A process for the preparation of taxol and derivatives of taxol ##STR1## is disclosed. The process involves reacting a .beta.-alkoxycarbonylamino-phenylpropionic acid with a 13-hydroxy taxane to produce an ester of the taxane at C-13; and then deprotecting the .beta.-alkoxycarbonylamino-phenylpropionic ester to produce a .beta.-amido-.alpha.-hydroxybenzenepropanoic ester of the taxane. Intermediates useful in the process are also disclosed.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: June 2, 1998
    Assignee: Sepracor, Inc.
    Inventors: Yun Gao, Charles M. Zepp
  • Patent number: 5616808
    Abstract: A two-step process for the conversion of a trans-1-amino-2-hydroxycycloalkane stereoselectively to a cis-1-amino-2-hydroxycycloalkane is disclosed. The novel step, a one-step hydrolysis with formal inversion, can be used to convert an amide of a trans-1-amino-2-hydroxycycloalkane to a cis-1-amino-2-hydroxycycloalkane. Methods for obtaining the trans-1-amino-2-hydroxycycloalkanes and their amides from alkenes are also disclosed, as are the novel, substantially optically pure 1-amino-2-indanols and 1-amido-2-indanols obtained thereby. A preferred process converts indene to cis-1-amino-2-indanol.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: April 1, 1997
    Assignee: Sepracor, Inc.
    Inventors: Yun Gao, Yaping Hong, Xiaoyi Nie, Roger P. Bakale, Richard R. Feinberg, Charles M. Zepp
  • Patent number: 5599985
    Abstract: A two-step process for the conversion of a trans-1-amino-2-hydroxycycloalkane stereoselectively to a cis-1-amino-2-hydroxycycloalkane is disclosed. The novel step, a one-step hydrolysis with formal inversion, can be used to convert an amide of a trans-1-amino-2-hydroxycycloalkane to a cis-1-amino-2-hydroxycycloalkane. Methods for obtaining the trans-1-amino-2-hydroxycycloalkanes and their amides from alkenes are also disclosed. Novel, optically active 1-amido-2-indanols and 1-amino-2-alkanols are also disclosed.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: February 4, 1997
    Assignee: Sepracor, Inc.
    Inventors: Yun Gao, Yaping Hong, Xiaoyi Nie, Roger P. Bakale, Richard R. Feinberg, Charles M. Zepp