Patents by Inventor Da-Ming Gou

Da-Ming Gou 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: 20210346502
    Abstract: The present disclosure relates to processes for preparing functionalized cyclooctenes and the synthetic intermediates prepared thereby.
    Type: Application
    Filed: October 10, 2019
    Publication date: November 11, 2021
    Inventors: Jose M. Mejia Oneto, Nathan Yee, Jochem Theodoor Van Herpt, Chun-Min Zeng, Da-Ming Gou, Maksim Royzen
  • Publication number: 20180312530
    Abstract: Novel processes, and intermediates, for making alkylated arylpiperazine and alkylated arylpiperidine compounds of the general formulas (I) and (VII), respectively wherein, R1 and R2 are individually selected from hydrogen, alkyl, substituted or alkyl; n=0, 1, or 2; Y=NR3R4, OR5, or SR5, where R3 and R4 are individually selected from acyl or sulfonyl, and where R5 is aryl or heteroaryl, or heterocyclic; and Ar is an aryl, heteroaryl, or heterocyclic compound.
    Type: Application
    Filed: April 20, 2018
    Publication date: November 1, 2018
    Inventors: Daniel J. COUGHLIN, Jeremy C. WILT, Da-Ming GOU, Steven COLLIER
  • Publication number: 20180244618
    Abstract: Provided is a method for preparing a structure directing agent (SDA) for crystalline molecular sieve synthesis comprising the steps of (a) hydrolyzing analkyl sulfate counterion of a quaternary ammonium salt to produce an organic ammonium salt having a hydrogen sulfate counterion; and (b) contacting the organic ammonium salt having the hydrogen sulfate counterion with a source of hydroxide in solution to form an organic ammonium salt having a hydroxide counterion; wherein the organic ammonium salt is a structure directing agent (SDA) for crystalline molecular sieve synthesis.
    Type: Application
    Filed: May 1, 2018
    Publication date: August 30, 2018
    Inventors: Steven COLLIER, Da-Ming GOU, Jeremy WILT
  • Patent number: 9957283
    Abstract: Novel processes, and intermediates, for making alkylated arylpiperazine and alkylated arylpiperidine compounds of the general formulas (I) and (VII), respectively wherein, R1 and R2 are individually selected from hydrogen, alkyl, substituted or alkyl; n=0, 1, or 2; Y=NR3R4, OR5, or SR5, where R3 and R4 are individually selected from acyl or sulfonyl, and where R5 is aryl or heteroaryl, or heterocyclic; and Ar is an aryl, heteroaryl, or heterocyclic compound.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: May 1, 2018
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Daniel J. Coughlin, Jeremy C. Wilt, Da-Ming Gou, Steven Collier
  • Publication number: 20180099982
    Abstract: Novel processes, and intermediates, for making alkylated arylpiperazine and alkylated arylpiperidine compounds of the general formulas (I) and (VII), respectively wherein, R1 and R2 are individually selected from hydrogen, alkyl, substituted or alkyl; n=0, 1, or 2; Y=NR3R4, OR5, or SR5, where R3 and R4 are individually selected from acyl or sulfonyl, and where R5 is aryl or heteroaryl, or heterocyclic; and Ar is an aryl, heteroaryl, or heterocyclic compound.
    Type: Application
    Filed: October 16, 2017
    Publication date: April 12, 2018
    Inventors: Daniel J. COUGHLIN, Jeremy C. WILT, Da-Ming GOU, Steven COLLIER
  • Publication number: 20180016231
    Abstract: Provided is a method for preparing a structure directing agent (SDA) for crystalline molecular sieve synthesis comprising the steps of (a) hydrolyzing analkyl sulfate counterion of a quaternary ammonium salt to produce an organic ammonium salt having a hydrogen sulfate counterion; and (b) contacting the organic ammonium salt having the hydrogen sulfate counterion with a source of hydroxide in solution to form an organic ammonium salt having a hydroxide counterion; wherein the organic ammonium salt is a structure directing agent (SDA) for crystalline molecular sieve synthesis.
    Type: Application
    Filed: April 20, 2016
    Publication date: January 18, 2018
    Inventors: Steven COLLIER, Da-Ming GOU, Jeremy WILT
  • Patent number: 9815844
    Abstract: Compositions comprising hydrocodone benzoic acid enol ester to form novel prodrugs including hydrocodone benzoic acid enol ester salts, and various polymorphs. Also provided are processes for the preparation of hydrocodone benzoic acid enol ester salts, and various polymorphs.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: November 14, 2017
    Assignee: KemPharm, Inc.
    Inventors: Brian W. Heinrich, Da-Ming Gou, Mahmoud Mirmehrabi, Bernhard Paul, Daniel James Coughlin
  • Patent number: 9790237
    Abstract: Novel processes, and intermediates, for making alkylated arylpiperazine and alkylated arylpiperidine compounds of the general formulas (I) and (VII), respectively wherein, R1 and R2 are individually selected from hydrogen, alkyl, substituted or alkyl; n=0, 1, or 2; Y=NR3R4, OR5, or SR5, where R3 and R4 are individually selected from acyl or sulfonyl, and where R5 is aryl or heteroaryl, or heterocyclic; and Ar is an aryl, heteroaryl, or heterocyclic compound.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: October 17, 2017
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Daniel J. Coughlin, Jeremy C. Wilt, Da-Ming Gou, Steven Collier
  • Publication number: 20160304457
    Abstract: Provided is a method for preparing a structure directing agent (SDA) for crystalline molecular sieve synthesis comprising the steps of (a) hydrolyzing analkyl sulfate counterion of a quaternary ammonium salt to produce an organic ammonium salt having a hydrogen sulfate counterion; and (b) contacting the organic ammonium salt having the hydrogen sulfate counterion with a source of hydroxide in solution to form an organic ammonium salt having a hydroxide counterion; wherein the organic ammonium salt is a structure directing agent (SDA) for crystalline molecular sieve synthesis.
    Type: Application
    Filed: April 20, 2016
    Publication date: October 20, 2016
    Inventors: Steven COLLIER, Da-Ming GOU, Jeremy WILT
  • Publication number: 20160039837
    Abstract: Compositions comprising hydrocodone benzoic acid enol ester to form novel prodrugs including hydrocodone benzoic acid enol ester salts, and various polymorphs. Also provided are processes for the preparation of hydrocodone benzoic acid enol ester salts, and various polymorphs.
    Type: Application
    Filed: March 10, 2014
    Publication date: February 11, 2016
    Applicant: Johnson Matthey Public Limited Company
    Inventors: Brian W. HEINRICH, Da-Ming GOU, Mahmoud MIRMEHRABI, Bernhard PAUL, Daniel James COUGHLIN
  • Publication number: 20150361099
    Abstract: Novel processes, and intermediates, for making alkylated arylpiperazine and alkylated arylpiperidine compounds of the general formulas (I) and (VII), respectively wherein, R1 and R2 are individually selected from hydrogen, alkyl, substituted or alkyl; n=0, 1, or 2; Y=NR3R4, OR5, or SR5, where R3 and R4 are individually selected from acyl or sulfonyl, and where R5 is aryl or heteroaryl, or heterocyclic; and Ar is an aryl, heteroaryl, or heterocyclic compound.
    Type: Application
    Filed: June 12, 2015
    Publication date: December 17, 2015
    Inventors: Daniel J. COUGHLIN, Jeremy C. Wilt, Da-Ming GOU
  • Patent number: 6489512
    Abstract: A method for making an indole compound includes transition metal-catalyzed arylation of a hydrazone to form an aryl hydrazone, hydrolysis of the aryl hydrazone to form an aryl hydrazine, and acid catalyzed cyclization of the aryl hydrazine to form the indole compound.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: December 3, 2002
    Assignee: Rhodia Chirex Inc.
    Inventors: Frederick Hicks, Da-Ming Gou, Salvatore Anthony Marchese, Lawrence J. Martel, Atena Necula, Richard E. Benetti, Richard A. Silva
  • Patent number: 6020174
    Abstract: (2R,3S)- and (2S,3R)-enantiomers of trans-.beta.-phenylglycidic esters, prepared by lipase-mediated enantioselective transesterification, are used for the synthesis of the taxol C-13 side chain with good yield.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: February 1, 2000
    Assignee: The Board of Governors for Higher Education
    Inventors: Ching-Shih Chen, Da-Ming Gou, Yeuk-Chuen Liu
  • Patent number: 5393912
    Abstract: Two types of structural analogues of D-myo-inositol 1,4,5-trisphosphate [Ins(1,4,5)P.sub.4 ] are prepared by a chemo-enzymatic route. These 6-O-substituted analogues retain the biological activity of Ins(1,4,5)P.sub.3 and are able to elicit Ca.sup.2+ release from porcine brain microsomes. Moreover, these analogues allow the preparation of Ins(1,4,5)P.sub.3 -based immunogens and affinity matrix which are successfully applied to the preparation and purification of antibodies against Ins(1,4,5)P.sub.3. These antibodies display discriminative affinity toward Ins(1,4,5)P.sub.3, and provide a useful tool to study intracellular Ca.sup.2+ mobilization.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: February 28, 1995
    Assignee: The Board of Governors for Higher Education, State of Rhode Island and Providence Plantations
    Inventors: Ching-Shih Chen, Da-Ming Gou, Woan-Ru Shieh