Patents by Inventor Jien-Heh Tien

Jien-Heh Tien 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: 20230373990
    Abstract: Provided herein is a bulk composition comprising the trihydrate form of (3S, 4R, 3?R)-6-[4-(4-amino-5-chloro-2-methoxy-benzoylamino)-3-methoxy-piperidin-1-yl]-hexanoic acid 1-azabicyclo[2.2.2]oct-3?-yl ester di-hydrochloride salt. Provided are also pharmaceutical compositions and dosage forms comprising the trihydrate form, and methods and uses for treating a gastrointestinal disorder in a subject with the trihydrate form. In some embodiments, the gastrointestinal disorder is gastroesophageal reflux disease (GERD), dyspepsia (such as functional dyspepsia or functional motility disorder), gastroparesis, paralytic ileus, post-operative ileus, emesis, nausea, heartburn, intestinal pseudo-obstruction, irritable bowel syndrome (IBS), constipation, enteral feeding intolerance (EFI), or esophagitis. In some embodiments, the gastrointestinal disorder is post-operative ileus, chronic grass sickness, constipation, megacolon, gastritis, gastrointestinal stasis, or abomasal emptying defect.
    Type: Application
    Filed: August 1, 2023
    Publication date: November 23, 2023
    Inventors: Pascal Jean DRUZGALA, Peter MILNER, Jien Heh TIEN
  • Patent number: 11643409
    Abstract: Provided herein is a bulk composition comprising the trihydrate form of (3S, 4R, 3?R)-6-[4-(4-amino-5-chloro-2-methoxy-benzoylamino)-3-methoxy-piperidin-1-yl]-hexanoic acid 1-azabicyclo[2.2.2]oct-3?-yl ester di-hydrochloride salt. Provided are also pharmaceutical compositions and dosage forms comprising the trihydrate form, and methods and uses for treating a gastrointestinal disorder in a subject with the trihydrate form. In some embodiments, the gastrointestinal disorder is gastroesophageal reflux disease (GERD), dyspepsia (such as functional dyspepsia or functional motility disorder), gastroparesis, paralytic ileus, post-operative ileus, emesis, nausea, heartburn, intestinal pseudo-obstruction, irritable bowel syndrome (IBS), constipation, enteral feeding intolerance (EFI), or esophagitis. In some embodiments, the gastrointestinal disorder is post-operative ileus, chronic grass sickness, constipation, megacolon, gastritis, gastrointestinal stasis, or abomasal emptying defect.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: May 9, 2023
    Assignee: Renexxion, LLC
    Inventors: Pascal Jean Druzgala, Jien Heh Tien
  • Publication number: 20220380361
    Abstract: Provided herein is a bulk composition comprising the trihydrate form of (3S, 4R, 3?R)-6-[4-(4-amino-5-chloro-2-methoxy-benzoylamino)-3-methoxy-piperidin-1-yl]-hexanoic acid 1-azabicyclo[2.2.2]oct-3?-yl ester di-hydrochloride salt. Provided are also pharmaceutical compositions and dosage forms comprising the trihydrate form, and methods and uses for treating a gastrointestinal disorder in a subject with the trihydrate form. In some embodiments, the gastrointestinal disorder is gastroesophageal reflux disease (GERD), dyspepsia (such as functional dyspepsia or functional motility disorder), gastroparesis, paralytic ileus, post-operative ileus, emesis, nausea, heartburn, intestinal pseudo-obstruction, irritable bowel syndrome (IBS), constipation, enteral feeding intolerance (EFI), or esophagitis. In some embodiments, the gastrointestinal disorder is post-operative ileus, chronic grass sickness, constipation, megacolon, gastritis, gastrointestinal stasis, or abomasal emptying defect.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 1, 2022
    Inventors: Pascal Jean DRUZGALA, Peter MILNER, Jien Heh TIEN
  • Publication number: 20210355116
    Abstract: Provided herein are methods of producing the trihydrate form of (3S, 4R, 3?R)-6-[4-(4-amino-5-chloro-2-methoxy-benzoylamino)-3-methoxy-piperidin-1-yl]-hexanoic acid 1-azabicyclo[2.2.2]oct-3?-yl ester di-hydrochloride salt.
    Type: Application
    Filed: April 30, 2021
    Publication date: November 18, 2021
    Inventors: Pascal Jean DRUZGALA, Peter MILNER, Jien Heh TIEN, Jinun-Ban YEH, Yen-Wei LI, Yen-Chi SU
  • Patent number: 10570127
    Abstract: Provided herein is a bulk composition comprising the trihydrate form of (3S, 4R, 3?R)-6-[4-(4-amino-5-chloro-2-methoxy-benzoylamino)-3-methoxy-piperidin-1-yl]-hexanoic acid 1-azabicyclo[2.2.2]oct-3?-yl ester di-hydrochloride salt. Provided are also pharmaceutical compositions and dosage forms comprising the trihydrate form, and methods and uses for treating a gastrointestinal disorder in a subject with the trihydrate form. In some embodiments, the gastrointestinal disorder is gastroesophageal reflux disease (GERD), dyspepsia (such as functional dyspepsia or functional motility disorder), gastroparesis, paralytic ileus, post-operative ileus, emesis, nausea, heartburn, intestinal pseudo-obstruction, irritable bowel syndrome (IBS), constipation, enteral feeding intolerance (EFI), or esophagitis. In some embodiments, the gastrointestinal disorder is post-operative ileus, chronic grass sickness, constipation, megacolon, gastritis, gastrointestinal stasis, or abomasal emptying defect.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: February 25, 2020
    Assignee: Renexxion, LLC
    Inventors: Pascal Jean Druzgala, Jien Heh Tien
  • Patent number: 10144692
    Abstract: This invention discloses a method of making vitamin K1. The mentioned method of making vitamin K1 comprises performing a first one-pot synthesis with base catalyst, performing a first hydrolysis, performing a substitution, and performing a second one-pot synthesis without metal oxidant. The starting material of this invention is stable 2-methyl-1,4-naphthoquinone. Preferably, this invention provides a method of making vitamin K1 efficiently on simplifying the operation and decreasing the side-product. More preferably, without metal residue, the vitamin K1 of this invention is without metal residue and more safety for clinical application.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: December 4, 2018
    Assignee: SUNNY PHARMTECH INC.
    Inventors: Jien-Heh Tien, Chu-Yi Pang, Nai-Hsuan Hsu
  • Publication number: 20170260117
    Abstract: This invention discloses a method of making vitamin K1. The mentioned method of making vitamin K1 comprises performing a first one-pot synthesis with base catalyst, performing a first hydrolysis, performing a substitution, and performing a second one-pot synthesis without metal oxidant. The starting material of this invention is stable 2-methyl-1,4-naphthoquinone. Preferably, this invention provides a method of making vitamin K1 efficiently on simplifying the operation and decreasing the side-product. More preferably, without metal residue, the vitamin K1 of this invention is without metal residue and more safety for clinical application.
    Type: Application
    Filed: October 16, 2014
    Publication date: September 14, 2017
    Applicant: Sunny Pharmtech Inc.
    Inventors: Jien-Heh Tien, Chu-Yi Pang, Nai-Hsuan Hsu
  • Patent number: 9115160
    Abstract: This invention discloses a solvent-free process for the preparation of cyclophosphamide. According to this invention, there is no solvent used during the reaction step for preparing cyclophosphamide, so that the total volume of the reaction for preparing cyclophosphamide can be reduced and the manufacture of cyclophosphamide can become more efficient. Furthermore, the above solvent-free process for the preparation of cyclophosphamide is more simply operated, more economic, and more environmental friendly than the preparation of cyclophosphamide in the prior art.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: August 25, 2015
    Assignee: SUNNY PHARMTECH INC.
    Inventors: Jien-Heh Tien, Pi-Shan Chiang
  • Patent number: 8809581
    Abstract: The present invention provides a method for making 6-aminocaproic acid as an active pharmaceutical ingredient. The method comprises: performing a hydrolysis procedure to have ?-caprolactam react with acid or base to generate a first reaction mixture, performing a modification procedure to have a solubility regulating agent reacts with 6-aminocaproic acid in the first reaction mixture to form a second reaction mixture including an aminocaproic acid intermediate, performing a separation procedure to have the intermediate separated from the second reaction mixture and performing a hydrogenation procedure to have the aminocaproic acid intermediate hydrogenated to form a 6-aminocaproic acid product.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: August 19, 2014
    Assignee: Sunny Pharmtech Inc.
    Inventors: Jien-Heh Tien, Chu-yi Pang
  • Publication number: 20140066654
    Abstract: This invention discloses a solvent-free process for the preparation of cyclophosphamide. According to this invention, there is no solvent used during the reaction step for preparing cyclophosphamide, so that the total volume of the reaction for preparing cyclophosphamide can be reduced and the manufacture of cyclophosphamide can become more efficient. Furthermore, the above solvent-free process for the preparation of cyclophosphamide is more simply operated, more economic, and more environmental friendly than the preparation of cyclophosphamide in the prior art.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 6, 2014
    Applicant: Sunny Pharmtech Inc.
    Inventors: Jien-Heh Tien, Pi-Shan Chiang
  • Publication number: 20140039219
    Abstract: The present invention provides a method for making 6-aminocaproic acid as an active pharmaceutical ingredient. The method comprises: performing a hydrolysis procedure to have ?-caprolactam react with acid or base to generate a first reaction mixture, performing a modification procedure to have a solubility regulating agent reacts with 6-aminocaproic acid in the first reaction mixture to form a second reaction mixture including an aminocaproic acid intermediate, performing a separation procedure to have the intermediate separated from the second reaction mixture and performing a hydrogenation procedure to have the aminocaproic acid intermediate hydrogenated to form a 6-aminocaproic acid product.
    Type: Application
    Filed: October 25, 2012
    Publication date: February 6, 2014
    Applicant: Sunny Pharmtech Inc.
    Inventors: Jien-Heh Tien, Chu-yi Pang
  • Publication number: 20070060640
    Abstract: The invention comprises compounds of Formula 1: wherein, R1 is independently H or halogen; R2 is, for example, H or —R10—NR11R12, and wherein R10 is C1-C6 alkyl, and R11 and R12 are independently H, C1-C4 alkyl, and hydrates, solvates, salts and tautomers thereof. The invention further comprises methods for making the compounds of the invention and methods for making compounds useful in the treatment or prevention of cardiac arrhythmia from the compounds of the invention.
    Type: Application
    Filed: July 14, 2006
    Publication date: March 15, 2007
    Applicant: ARYX THERAPEUTICS
    Inventors: Pascal Druzgala, Jien-Heh Tien, Arthur Cooper, Cyrus Becker
  • Publication number: 20060128962
    Abstract: The invention relates to a process for preparing quinoline-substituted carbonate and carbamate compounds, which are important intermediates in the synthesis of 6-O-substituted macrolide antibiotics. The process employs metal-catalyzed coupling reactions to provide a carbonate or carbamate of formula (I) or (II) or a substrate that can be reduced to obtain the same.
    Type: Application
    Filed: February 6, 2006
    Publication date: June 15, 2006
    Inventors: Michael Allen, Ramiya Premchandran, Sou-Jen Chang, Stephen Condon, John DeMattei, Steven King, Lawrence Kolaczkowski, Sukumar Manna, Paul Nichols, Hemant Patel, Subhash Patel, Daniel Plata, Eric Stoner, Jien-Heh Tien, Steven Wittenberger
  • Publication number: 20050250795
    Abstract: Methods and novel intermediates for the preparation of acyclic nucleoside derivatives of the formula: where one of R1 and R2 is an amino acid acyl group and the other of R1 and R2 is a —C(O)C3-C21 saturated or monounsaturated, optionally substituted alkyl and R3 is OH or H; or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: May 18, 2005
    Publication date: November 10, 2005
    Applicant: Medivir AB
    Inventors: M. Leanna, Steven Hannick, Michael Rasmussen, Jien-Heh Tien, Lakshmi Bhagavatula, Pulla Singam, Bradley Gates, Lawrence Kolaczkowski, Ramesh Patel, Greg Wayne, Greg Lannoye, Weijiang Zhang, Zhenping Tian, Kirill Lukin, Bikshandarkoil Narayanan, David Riley, Howard Morton, Sou-Jen Chang, Cynthia Curty, Daniel Plata, John Bellettini, Bhadra Shelat, Tiffany Spitz, Cheng-Xi Yang
  • Patent number: 5892008
    Abstract: The claimed invention provides a novel method of preparing 6-O-methyl erythromycin A. The process comprises the steps of reducing the 9-keto group of erythromycin A to form a 9-hydroxy erythromycin A, protecting the 9-, 2'-, and/or 4"-hydroxyl groups of erythromycin A, selectively methylating the 6-position of the 9-hydroxy erythromycin A derivative, deprotecting the hydroxyl groups and oxidizing the 9-hydroxyl to afford 6-O-methyl erythromycin A.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: April 6, 1999
    Assignee: Abbott Laboratories
    Inventors: Yi-Yin Ku, David A. Riley, Elaine C. Lee, Jien-Heh Tien