Patents by Inventor Jong-Ryoo Choi

Jong-Ryoo Choi 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: 11407761
    Abstract: Provided are a novel derivative of ?-apopicropodophyllin and a method of preparing the same, and more particularly, a compound represented by Formula 1 below, which is a novel derivative of ?-apopicropodophyllin derived from podophyllotoxin, which is an anticancer agent, a method of preparing the same, and a composition for treating cancer, which includes the compound. In Formula 1, R is a C2 to C10 alkyl group, a C2 to C10 alkyl group containing an allyl- or alkyne, a —[CH2]n—C3 to C8 cycloalkyl group, a substituted or unsubstituted —[CH2]n-phenyl group, a substituted or unsubstituted —[CH2]n—C5 to C6 heteroaromatic group, a —C(?O)—C1 to C8 alkyl group, a substituted or unsubstituted —C(?O)—[CH2]n-phenyl group, or a substituted or unsubstituted —C(?O)—[CH2]n—C5 to C6 heteroaromatic group, wherein n is an integer of 0 to 6.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: August 9, 2022
    Assignee: J&C SCIENCES
    Inventors: Jong-Ryoo Choi, In-Young Choi, So-Yeon Nam, Se Hee Hyun
  • Publication number: 20210347783
    Abstract: Provided are a novel derivative of ?-apopicropodophyllin and a method of preparing the same, and more particularly, a compound represented by Formula 1 below, which is a novel derivative of ?-apopicropodophyllin derived from podophyllotoxin, which is an anticancer agent, a method of preparing the same, and a composition for treating cancer, which includes the compound. In Formula 1, R is a C2 to C10 alkyl group, a C2 to C10 alkyl group containing an allyl- or alkyne, a —[CH2]n—C3 to C8 cycloalkyl group, a substituted or unsubstituted —[CH2]n-phenyl group, a substituted or unsubstituted —[CH2]n—C5 to C6 heteroaromatic group, a —C(?O)—C1 to C8 alkyl group, a substituted or unsubstituted —C(?O)—[CH2]n-phenyl group, or a substituted or unsubstituted —C(?O)—[CH2]n—C5 to C6 heteroaromatic group, wherein n is an integer of 0 to 6.
    Type: Application
    Filed: August 12, 2020
    Publication date: November 11, 2021
    Inventors: Jong-Ryoo CHOI, In-Young CHOI, So-Yeon NAM, Se Hee HYUN
  • Publication number: 20170253588
    Abstract: 7-(3-Aminomethyl-4-methoxyiminopyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid methanesulfonate and hydrates thereof, processes for their preparation, pharmaceutical compositions comprising them, and their use in antibacterial therapy.
    Type: Application
    Filed: January 20, 2017
    Publication date: September 7, 2017
    Applicant: LG LIFE SCIENCES, LTD.
    Inventors: Ae Ri Kim, Jin Hwa Lee, Ki Sook Park, Jong Ryoo Choi, Tae Hee Lee, Jay Hyok Chang, Do Hyun Nam, Hoon Choi
  • Publication number: 20160264569
    Abstract: 7-(3-Aminomethyl-4-methoxyiminopyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid methanesulfonate and hydrates thereof, processes for their preparation, pharmaceutical compositions comprising them, and their use in antibacterial therapy.
    Type: Application
    Filed: January 15, 2016
    Publication date: September 15, 2016
    Applicant: LG LIFE SCIENCES, LTD.
    Inventors: Ae Ri Kim, Jin Hwa Lee, Ki Sook Park, Jong Ryoo Choi, Tae Hee Lee, Jay Hyok Chang, Do Hyun Nam, Hoon Choi
  • Publication number: 20150291585
    Abstract: 7-(3-Aminomethyl-4-methoxyiminopyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid methanesulfonate and hydrates thereof, processes for their preparation, pharmaceutical compositions comprising them, and their use in antibacterial therapy.
    Type: Application
    Filed: February 13, 2015
    Publication date: October 15, 2015
    Applicant: LG Life Sciences, LTD
    Inventors: Ae Ri Kim, Jin Hwa Lee, Ki Sook Park, Jong Ryoo Choi, Tae Hee Lee, Jay Hyok Chang, Do Hyun Nam, Hoon Choi
  • Publication number: 20140187576
    Abstract: 7-(3-Aminomethyl-4-methoxyiminopyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid methanesulfonate and hydrates thereof, processes for their preparation, pharmaceutical compositions comprising them, and their use in antibacterial therapy.
    Type: Application
    Filed: October 25, 2013
    Publication date: July 3, 2014
    Inventors: Ae Ri Kim, Jin Hwa Lee, Ki Sook Park, Jong Ryoo Choi, Tae Hee Lee, Jay Hyok Chang, Do Hyun Nam, Hoon Choi
  • Publication number: 20130065917
    Abstract: 7-(3-Aminomethyl-4-methoxyiminopyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid methanesulfonate and hydrates thereof, processes for their preparation, pharmaceutical compositions comprising them, and their use in antibacterial therapy.
    Type: Application
    Filed: June 26, 2012
    Publication date: March 14, 2013
    Inventors: Ae Ri KIM, Jin Hwa Lee, Ki Sook Park, Jong Ryoo Choi, Tae Hee Lee, Jay Hyok Chang, Do Hyun Nam, Hoon Choi
  • Publication number: 20110312987
    Abstract: 7-(3-Aminomethyl-4-methoxyiminopyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid methanesulfonate and hydrates thereof, processes for their preparation, pharmaceutical compositions comprising them, and their use in antibacterial therapy.
    Type: Application
    Filed: April 11, 2011
    Publication date: December 22, 2011
    Inventors: Ae Ri Kim, Jin Hwa Lee, Ki Sook Park, Jong Ryoo Choi, Tae Hee Lee, Jay Hyok Chang, Do Hyun Nam, Hoon Choi
  • Publication number: 20100240694
    Abstract: 7-(3-Aminomethyl-4-methoxyiminopyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid methanesulfonate and hydrates thereof, processes for their preparation, pharmaceutical compositions comprising them, and their use in antibacterial therapy.
    Type: Application
    Filed: June 2, 2010
    Publication date: September 23, 2010
    Inventors: Ae Ri KIM, Jin Hwa LEE, Ki Sook PARK, Jong Ryoo CHOI, Tae Hee LEE, Jay Hyok CHANG, Do Hyun NAM, Hoon CHOI
  • Patent number: 7723319
    Abstract: The present invention relates to an acyclic nucleoside phosphonate derivative which is useful as an antiviral agent (particularly, against hepatitis B virus), pharmaceutically acceptable salts, stereoisomers, and a process for the preparation thereof.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: May 25, 2010
    Assignee: LG Life Sciences Ltd.
    Inventors: Dong-Gyu Cho, Jae-Hong Lim, Jae-Taeg Hwang, Woo-Young Cho, Hyun-Sook Jang, Chang-Ho Lee, Tae-Saeng Choi, Chung-Mi Kim, Yong-Zu Kim, Tae-Kyun Kim, Seung-Joo Cho, Gyoung-Won Kim, Jong-Ryoo Choi, Jeong-Min Kim, Kee-Yoon Roh
  • Patent number: 7700617
    Abstract: A composition comprising 7-(3-Aminomethyl-4-methoxyiminopyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid methanesulfonate hydrate and their use in antibacterial therapy.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: April 20, 2010
    Assignee: LG Life Sciences, Ltd.
    Inventors: Ae Ri Kim, Jin Hwa Lee, Ki Sook Park, Jong Ryoo Choi, Tae Hee Lee, Jay Hyok Chang, Do Hyun Nam, Hoon Choi
  • Publication number: 20100004440
    Abstract: The present invention relates to an acyclic nucleoside phosphonate derivative which is useful as an antiviral agent (particularly, against hepatitis B virus), pharmaceutically acceptable salts, stereoisomers, and a process for the preparation thereof.
    Type: Application
    Filed: September 9, 2009
    Publication date: January 7, 2010
    Inventors: Dong-Gyu CHO, Jae-Hong LIM, Jae-Taeg HWANG, Woo-Young CHO, Hyun-Sook JANG, Chang-Ho LEE, Tae-Saeng CHOI, Chung-Mi KIM, Yong-Zu KIM, Tae-Kyun KIM, Seung-Joo CHO, Gyoung-Won KIM, Jong-Ryoo CHOI, Jeong-Min KIM, Kee-Yoon ROH
  • Patent number: 7605147
    Abstract: The present invention relates to an acyclic nucleoside phosphonate derivative represented by the following formula (1): in which represents single bond or double bond, R1, R2, R3, R7 and R8 are defined herein, Y represents —O—, —S—, —CH(Z)-, ?C(Z)-, —N(Z)-, ?N—, or —SiH(Z)-, wherein Z represents hydrogen, hydroxy or halogen, or represents C1-C7-alkyl, C1-C5-alkoxy, allyl, hydroxy-C1-C7-alkyl, C1-C7-aminoalkyl or phenyl, Q represents a group having the following formula: wherein X1, and X2 independently of one another represent hydrogen, amino, hydroxy or halogen, or represent C1-C7-alkyl, C1-C5-alkoxy, allyl, hydroxy-C1-C7-alkyl, phenyl or phenoxy each of which is optionally substituted by nitro or C1-C5-alkoxy, or represent C6-C10-arylthio which is optionally substituted by nitro, amino, C1-C6-alkyl or C1-C4-alkoxy, or represent C6-C12-arylamino, C1-C7-alkylamino, di(C1-C7-alkyl)amino, C3-C6-cycloalkylamino or a structure of wherein n denotes an integer of 1 or 2 and Y1 represents O, CH2 or N—
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: October 20, 2009
    Assignee: LG Life Sciences Ltd.
    Inventors: Dong-Gyu Cho, Jae-Hong Lim, Jae-Taeg Hwang, Woo-Young Cho, Hyun-Sook Jang, Chang-Ho Lee, Tae-Saeng Choi, Chung-Mi Kim, Yong-Zu Kim, Tae-Kyun Kim, Seung-Joo Cho, Gyoung-Won Kim, Jong-Ryoo Choi, Jeong-Min Kim, Kee-Yoon Roh
  • Publication number: 20090182006
    Abstract: 7-(3-Aminomethyl-4-methoxyiminopyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid methanesulfonate and hydrates thereof, processes for their preparation, pharmaceutical compositions comprising them, and their use in antibacterial therapy.
    Type: Application
    Filed: January 9, 2009
    Publication date: July 16, 2009
    Inventors: Ae Ri Kim, Jin Hwa Lee, Ki Sook Park, Jong Ryoo Choi, Tae Hee Lee, Jay Hyok Chang, Do Hyun Nam, Hoon Choi
  • Patent number: 7157448
    Abstract: The present invention relates to a nucleoside phosphonate derivative represented by formula (1): pharmaceutically acceptable salts, and stereoisomers. This nucleoside phosphonate derivative is useful as an antiviral agent, particularly, against hepatitis B virus. Also disclosed are processes for the preparation of the nucleoside phosphonate derivative. Also disclosed are methods treating hepatitis B by administering a nucleoside phosphonate derivative of formula (1).
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: January 2, 2007
    Assignee: LG Life Sciences Ltd.
    Inventors: Jong-Ryoo Choi, Jeong-Min Kim, Kee-Yoon Roh, Dong-Gyu Cho, Jae-Hong Lim, Jae-Taeg Hwang, Woo-Young Cho, Hyun-Sook Jang, Chang-Ho Lee, Tae-Saeng Choi, Chung-Mi Kim, Yong-Zu Kim, Tae-Kyun Kim, Seung-Joo Cho, Gyoung-Won Kim
  • Publication number: 20060293284
    Abstract: The present invention relates to an acyclic nucleoside phosphonate derivative which is useful as an antiviral agent (particularly, against hepatitis B virus), pharmaceutically acceptable salts, stereoisomers, and a process for the preparation thereof.
    Type: Application
    Filed: June 20, 2006
    Publication date: December 28, 2006
    Inventors: Dong-Gyu Cho, Jae-Hong Lim, Jae-Taeg Hwang, Woo-Young Cho, Hyun-Sook Jang, Chang-Ho Lee, Tae-Saeng Choi, Chung-Mi Kim, Yong-Zu Kim, Tae-Kyun Kim, Seung-Joo Cho, Gyoung-Won Kim, Jong-Ryoo Choi, Jeong-Min Kim, Kee-Yoon Roh
  • Publication number: 20060111324
    Abstract: The present invention relates to (+)-trans-isomers of (1-phosphonomethoxy-2-alkylcyclopropyl)methyl nucleoside derivatives of the formula (1) which are useful as an antiviral agent (particularly, against hepatitis B virus), pharmaceutically acceptable saltss, hydrates, or solvates thereof, and processes for the preparation of stereoisomers of the compounds of the formula (1), and a composition for the treatment of viral diseases (particularly, against hepatitis B virus) comprising (+)-trans-isomer of the compound of the formula (1), pharmaceutically acceptable salt, hydrate, or solvate thereof as an active substance.
    Type: Application
    Filed: September 22, 2003
    Publication date: May 25, 2006
    Applicant: LG Life Sciences
    Inventors: Jong-Ryoo Choi, Jae-Taeg Hwang, Dong-Gyu Cho, Kee-Yoon Roh, Chung-Hyung Kim, Chung-Mi Kim, Min-Joon Han, Jeong-Min Kim, Woo-Young Cho, Gyoung-Won Kim, Sin-Byoung Ahn
  • Publication number: 20040198767
    Abstract: 7-(3-Aminomethyl-4-methoxyiminopyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid methanesulfonate and hydrates thereof, processes for their preparation, pharmaceutical compositions comprising them, and their use in antibacterial therapy.
    Type: Application
    Filed: April 15, 2004
    Publication date: October 7, 2004
    Applicant: LG Life Sciences, Ltd.
    Inventors: Ae Ri Kim, Jin Hwa Lee, Ki Sook Park, Jong Ryoo Choi, Tae Hee Lee, Jay Hyok Chang, Do Hyun Nam, Hoon Choi
  • Patent number: 6723734
    Abstract: 7-(3-Aminomethyl-4-methoxyiminopyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid methanesulfonate and hydrates thereof, processes for their preparation, pharmaceutical compositions comprising them, and their use in antibacterial therapy.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: April 20, 2004
    Assignee: LG Life Sciences, Ltd.
    Inventors: Ae Ri Kim, Jin Hwa Lee, Ki Sook Park, Jong Ryoo Choi, Tae Hee Lee, Jay Hyok Chang, Do Hyun Nam, Hoon Choi
  • Publication number: 20040063668
    Abstract: The present invention relates to an acyclic nucleoside phosphonate derivative which is useful as an antiviral agent (particularly, against hepatitis B virus), pharmaceutically acceptable salts, stereoisomers, and a process for the preparation thereof.
    Type: Application
    Filed: June 18, 2003
    Publication date: April 1, 2004
    Inventors: Jong-Ryoo Choi, Jeong-Min Kim, Kee-Yoon Roh, Dong-Gyu Cho, Jae-Hong Lim, Jae-Taeg Hwang, Woo-Young Cho, Hyun-Sook Jang, Chang-Ho Lee, Tae-Saeng Choi, Chung-Mi Kim, Yong-Zu Kim, Tae-Kyun Kim, Seung-Joo Cho, Gyoung-Won Kim