Patents Assigned to Legochem Biosciences, Inc.
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Patent number: 9919057Abstract: Provided are compounds comprising a self-immolative group, and the compounds comprising a self-immolative group according to the present invention may include a protein (for example, an oligopeptide, a polypeptide, an antibody, or the like) having substrate-specificity for a target and an active agent (for example, a drug, a toxin, a ligand, a detection probe, or the like) having a specific function or activity.Type: GrantFiled: September 25, 2015Date of Patent: March 20, 2018Assignee: LegoChem Biosciences, Inc.Inventors: Yong Zu Kim, Tae Kyo Park, Sung Ho Woo, Sun Young Kim, Jong Un Cho, Doo Hwan Jung, Jeon Yang, Ji Young Min, Hyang Sook Lee, Yun Hee Park, Jeong Hee Ryu, Kyu Man Oh, Yeong Soo Oh, Jeiwook Chae, Ho Young Song, Chul-Woong Chung
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Patent number: 9669107Abstract: The invention provides protein-active agent conjugates having an amino acid motif that can be recognized by an isoprenoid transferase. The invention also provides compositions containing the conjugates. The invention further provides methods for using the conjugates to deliver the active agent to a target cell, as well as methods for using the conjugates to treat a subject in need thereof (e.g., a subject in need of the active agent).Type: GrantFiled: October 17, 2014Date of Patent: June 6, 2017Assignee: LegoChem Biosciences, Inc.Inventors: Yongzu Kim, Taekyo Park, Sungho Woo, Hyangsook Lee, Sunyoung Kim, Jongun Cho, Doohwan Jung, Youngun Kim, Hyunjin Kwon, Kyuman Oh, Yunseo Chung, Yun-Hee Park
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Publication number: 20170152251Abstract: The present invention relates to a novel crystalline form of 5-chloro-N-({(5S)-2-oxo-3-[4-(5,6-dihydro-4H-[1,2,4]triazin-1-yl)phenyl]-1,3-oxazolidin-5-yl}methyl)thiophene-2-carboxamide methanesulfonate and a pharmaceutical composition containing the same. The novel crystalline form of a compound according to the present invention exhibits excellent stability even in high-temperature and humidity environments, and thus can be favorably used to prevent or treat diseases, such as thrombosis, myocardial infarction, atherosclerosis, inflammation, stroke, angina pectoris, restenosis after angioplasty, and thromboembolism.Type: ApplicationFiled: July 18, 2014Publication date: June 1, 2017Applicants: GREEN CROSS CORPORATION, LEGOCHEM BIOSCIENCES,INC.Inventors: Soongyu CHOI, Jungsub CHOI, So-Hyun YOON, Yoo Hoon KIM, Jae Yeon KIM, Suk Ho LEE, Young Lag CHO, Ho Young SONG, Dae Yon LEE, Sung Yoon BAEK, Sang Eun CHAE, Tae Kyo PARK, Sung Ho WOO, Yong Zu KIM
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Patent number: 9630977Abstract: The present invention relates to novel cephalosporin derivatives represented by X, Y, L, R1, and R2 are as same as defined in the description of the invention. The present invention also relates to pharmaceutical antibiotic compositions comprising a novel celphalosporin derivative represented by Chemical Formula 1, a prodrug thereof, a hydrate thereof, a solvate thereof, an isomer thereof, or a pharmaceutically acceptable salt thereof as an effective ingredient. According to the present invention, novel cephalosporin derivatives, a prodrug thereof, a hydrate thereof, a solvate thereof, an isomer thereof, or a pharmaceutically acceptable salt thereof as an effective ingredient for the broad spectrum of antibiotic resistant, low toxicity, particularly in Gram-negative bacteria, which can be useful with strong antimicrobial activity.Type: GrantFiled: November 30, 2012Date of Patent: April 25, 2017Assignee: Legochem Biosciences, Inc.Inventors: Young Lag Cho, Joung Yul Yun, Sang Eun Chae, Chul Soon Park, Hyang Sook Lee, Kyu Man Oh, Hye Jin Heo, Dae Hyuck Kang, Young Jae Yang, Hyun Jin Kwon, Tae Kyo Park, Sung Ho Woo, Yong Zu Kim
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Publication number: 20170095576Abstract: Provided are methods of use of compounds comprising a self-immolative group, which compounds may include a protein (for example, an oligopeptide, a polypeptide, an antibody, or the like) having substrate-specificity for a target and an active agent (for example, a drug, a toxin, a ligand, a detection probe, or the like) having a specific function or activity.Type: ApplicationFiled: May 27, 2015Publication date: April 6, 2017Applicant: LEGOCHEM BIOSCIENCES, INC.Inventors: Yong Zu Kim, Tae Kyo Park, Sung Ho Woo, Sun Young Kim, Jong Un Cho, Doo Hwan Jung, Ji Young Min, Hyang Sook Lee, Yun Hee Park, Jeong Hee Ryu, Kyu Man Oh, Yeong Soo Oh, Jeiwook Chae, Ho Young Song, Chul-Woong Chung, Jeon Yang
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Publication number: 20170088614Abstract: In some aspects, the invention relates to an antibody-drug conjugate, comprising an anti-CD19 antibody; a linker; and an active agent. The antibody-drug conjugate may comprise a self-immolative group. The linker may comprise an O-substituted oxime, e.g., wherein the oxygen atom of the oxime is substituted with a group that covalently links the oxime to the active agent; and the carbon atom of the oxime is substituted with a group that covalently links the oxime to the antibody.Type: ApplicationFiled: September 26, 2016Publication date: March 30, 2017Applicant: LegoChem Biosciences, Inc.Inventors: Yong Zu Kim, Yun Hee Park, Jeong Hee Ryu, Ho Young Song, Jeiwook Chae, Chul-Woong Chung, Ji Eun Jung, Hyo Jung Choi
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Publication number: 20170088621Abstract: In some aspects, the invention relates to an antibody-drug conjugate, comprising an anti-epidermal growth factor receptor (“EGFR”) antibody; a linker; and an active agent. The antibody-drug conjugate may comprise a self-immolative group. The linker may comprise an O-substituted oxime, e.g., wherein the oxygen atom of the oxime is substituted with a group that covalently links the oxime to the drug; and the carbon atom of the oxime is substituted with a group that covalently links the oxime to the antibody.Type: ApplicationFiled: September 26, 2016Publication date: March 30, 2017Applicant: LegoChem Biosciences, Inc.Inventors: Yong Zu Kim, Yun Hee Park, Hyo Jung Choi, Ji Eun Jung, Jeong Hee Ryu, Ho Young Song, Jeiwook Chae, Chul-Woong Chung
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Patent number: 8846669Abstract: Disclosed is a novel oxazolidinone derivative represented by Formula 1 above, in particular, a novel oxazolidinone compound having a cyclic amidoxime or cyclic amidrazone group. In Formula 1, R and Q are the same as defined in the detailed description. In addition, disclosed is a pharmaceutical composition for an antibiotic which includes the novel oxazolidinone derivative of Formula 1, a prodrug thereof, a hydrate thereof, a solvate thereof, an isomer thereof, or a pharmaceutically acceptable salt thereof as an active ingredient. The novel oxazolidinone derivative, the prodrug thereof, the hydrate thereof, the solvate thereof, the isomer thereof, and the pharmaceutically acceptable salt thereof have broad antibacterial spectrum against resistant bacteria, low toxicity and strong antibacterial effects against Gram-positive and Gram-negative bacteria and thus may be effectively used as antibiotics.Type: GrantFiled: March 29, 2012Date of Patent: September 30, 2014Assignee: Legochem Biosciences, Inc.Inventors: Young Lag Cho, Sung Yoon Baek, Sang Eun Chae, Sun Young Kim, Hong Bum Lee, Hyang Sook Lee, Kyuman Oh, Hye Jin Heo, Tae Kyo Park, Sung Ho Woo, Yong Zu Kim
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Publication number: 20140187756Abstract: The invention provides methods for preparing an antibody-active agent conjugate. The conjugate comprises an antibody, a cysteine residue of an amino acid motif that can be recognized by an isoprenoid transferase located at or after the carboxy-terminus of the antibody, an isoprenoid unit operably linked to the cysteine residue, and an active agent. The invention also provides a composition comprising the antibody-active agent conjugate prepared by the methods.Type: ApplicationFiled: February 15, 2014Publication date: July 3, 2014Applicant: LegoChem Biosciences, Inc.Inventors: Yongzu Kim, Taekyo Park, Sungho Woo, Hyangsook Lee, Sunyoung Kim, Jongun Cho, Doohwan Jung, Youngun Kim, Hyunjin Kwon, Kyuman Oh, Yunseo Chung, Yun-Hee Park
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Publication number: 20140179691Abstract: Disclosed is a novel oxazolidinone derivative represented by Formula 1 above, in particular, a novel oxazolidinone compound having a cyclic amidoxime or cyclic amidrazone group. In Formula 1, R and Q are the same as defined in the detailed description. In addition, disclosed is a pharmaceutical composition for an antibiotic which includes the novel oxazolidinone derivative of Formula 1, a prodrug thereof, a hydrate thereof, a solvate thereof, an isomer thereof, or a pharmaceutically acceptable salt thereof as an active ingredient. The novel oxazolidinone derivative, the prodrug thereof, the hydrate thereof, the solvate thereof, the isomer thereof, and the pharmaceutically acceptable salt thereof have broad antibacterial spectrum against resistant bacteria, low toxicity and strong antibacterial effects against Gram-positive and Gram-negative bacteria and thus may be effectively used as antibiotics.Type: ApplicationFiled: March 29, 2012Publication date: June 26, 2014Applicant: LEGOCHEM BIOSCIENCES, INC.Inventors: Young Lag Cho, Sung Yoon Baek, Sang Eun Chae, Sun Young Kim, Hong Bum Lee, Hyang Sook Lee, Kyuman Oh, Tae Kyo Park, Sung Ho Woo, Yong Zu Kim, Hye Jin Heo
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Publication number: 20140161829Abstract: The invention provides protein-active agent conjugates having an amino acid motif that can be recognized by an isoprenoid transferase. The invention also provides compositions containing the conjugates. The invention further provides methods for using the conjugates to deliver the active agent to a target cell, as well as methods for using the conjugates to treat a subject in need thereof (e.g., a subject in need of the active agent).Type: ApplicationFiled: February 15, 2014Publication date: June 12, 2014Applicant: LegoChem Biosciences, Inc.Inventors: Yongzu Kim, Taekyo Park, Sungho Woo, Hyangsook Lee, Sunyoung Kim, Jongun Cho, Doohwan Jung, Youngun Kim, Hyunjin Kwon, Kyuman Oh, Yunseo Chung, Yun-Hee Park
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Patent number: 8703939Abstract: Provided are a method for preparing (R)-3-(3-fluoro-4-(1-methyl-5, 6-dihydro-1,2,4-triazin-4(1H)-yl)phenyl)-5-(substituted methyl) oxazolidin-2-one derivatives, which are oxazolidinone antibiotic compounds having a cyclic amidrazone group, represented by Chemical Formula 1, and intermediates thereof, and uses 3,4-difluoro-4-nitrobenzen as a starting material. According to the preparation method of the present invention, (R)-3-(3-fluoro-4-(1-methyl-5, 6-dihydro-1,2,4-triazin-4(1H)-yl)phenyl)-5-(substituted methyl) oxazolidin-2-one derivatives, which are useful as oxazolidinone antibiotics, can be prepared in high purity and high yield in a simpler manner than conventional methods.Type: GrantFiled: March 8, 2011Date of Patent: April 22, 2014Assignee: Legochem Biosciences, Inc.Inventors: Young Lag Cho, Sung Yoon Baek, Sang Eun Chae, Hong Bum Lee, Tae Kyo Park, Sung Ho Woo, Yong Zu Kim
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Publication number: 20130178455Abstract: The present invention relates to novel cephalosporin derivatives represented by Chemical Formula 1. Wherein, X, Y, L, R1, and R2 are as same as defined in the description of the invention. The present invention also relates to pharmaceutical antibiotic compositions comprising a novel celphalosporin derivative represented by Chemical Formula 1, a prodrug thereof, a hydrate thereof, a solvate thereof, an isomer thereof, or a pharmaceutically acceptable salt thereof as an effective ingredient. According to the present invention, novel cephalosporin derivatives, a prodrug thereof, a hydrate thereof, a solvate thereof, an isomer thereof, or a pharmaceutically acceptable salt thereof as an effective ingredient for the broad spectrum of antibiotic resistant, low toxicity, particularly in Gram-negative bacteria, which can be useful with strong antimicrobial activity.Type: ApplicationFiled: November 30, 2012Publication date: July 11, 2013Applicant: LEGOCHEM BIOSCIENCES, INCInventor: Legochem Biosciences, Inc.
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Publication number: 20130005967Abstract: Provided are a method for preparing (R)-3-(3-fluoro-4-(1-methyl-5,6-dihydro-1,2,4-triazin-4(1H)-yl)phenyl)-5-(substituted methyl)oxazolidin-2-one derivatives, which are oxazolidinone antibiotic compounds having a cyclic amidrazone group, represented by Chemical Formula 1, and intermediates thereof, and uses 3,4-difluoro-4-nitrobenzen as a starting material. According to the preparation method of the present invention, (R)-3-(3-fluoro-4-(1-methyl-5,6-dihydro-1,2,4-triazin-4(1H)-yl)phenyl)-5-(substituted methyl)oxazolidin-2-one derivatives, which are useful as oxazolidinone antibiotics, can be prepared in high purity and high yield in a simpler manner than conventional methods.Type: ApplicationFiled: March 8, 2011Publication date: January 3, 2013Applicant: LEGOCHEM BIOSCIENCES, INC.Inventors: Young Lag Cho, Sung Yoon Baek, Sang Eun Chae, Hong Bum Lee, Tae Kyo Park, Sung Ho Woo, Yong Zu Kim
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Patent number: 8329684Abstract: The present invention relates to novel cephalosporin derivatives represented by Chemical Formula 1. Wherein, X, Y, L, R1, and R2 are as same as defined in the description of the invention. The present invention also relates to pharmaceutical antibiotic compositions comprising a novel celphalosporin derivative represented by Chemical Formula 1, a prodrug thereof, a hydrate thereof, a solvate thereof, an isomer thereof, or a pharmaceutically acceptable salt thereof as an effective ingredient. Compounds of the present invention are effective ingredients for the broad spectrum of antibiotic resistance, exhibit low toxicity, particularly in Gram-negative bacteria, which can be useful with strong antimicrobial activity.Type: GrantFiled: May 8, 2012Date of Patent: December 11, 2012Assignee: Legochem Biosciences, Inc.Inventors: Young Lag Cho, Joung Yul Yun, Sang Eun Chae, Chul Soon Park, Hyang Sook Lee, Kyu Man Oh, Hye Jin Kang, Dae Hyuck Kang, Young Jae Yang, Hyun Jin Kwon, Tae Kyo Park, Sung Ho Woo, Young Zu Kim
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Publication number: 20120308584Abstract: The invention provides protein-active agent conjugates having an amino acid motif that can be recognized by an isoprenoid transferase. The invention also provides compositions containing the conjugates, as well as methods for making the conjugates and compositions. The invention further provides methods for using the conjugates to deliver the active agent to a target cell, as well as methods for using the conjugates to treat a subject in need thereof (e.g., a subject in need of the active agent).Type: ApplicationFiled: May 8, 2012Publication date: December 6, 2012Applicant: LEGOCHEM BIOSCIENCES, INC.Inventors: Yongzu Kim, Taekyo Park, Sungho Woo, Hyangsook Lee, Sunyoung Kim, Jongun Cho, Doohwan Jung, Youngun Kim, Hyunjin Kwon, Kyuman Oh, Yunseo Chung, Yun-Hee Park
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Publication number: 20120264727Abstract: The present invention relates to novel cephalosporin derivatives represented by Chemical Formula 1. Wherein, X, Y, L, R1, and R2 are as same as defined in the description of the invention. The present invention also relates to pharmaceutical antibiotic compositions comprising a novel celphalosporin derivative represented by Chemical Formula 1, a prodrug thereof, a hydrate thereof, a solvate thereof, an isomer thereof, or a pharmaceutically acceptable salt thereof as an effective ingredient. According to the present invention, novel cephalosporin derivatives, a prodrug thereof, a hydrate thereof, a solvate thereof, an isomer thereof, or a pharmaceutically acceptable salt thereof as an effective ingredient for the broad spectrum of antibiotic resistant, low toxicity, particularly in Gram-negative bacteria, which can be useful with strong antimicrobial activity.Type: ApplicationFiled: May 8, 2012Publication date: October 18, 2012Applicant: Legochem Biosciences, Inc.Inventors: Young Lag CHO, Hye Jin HEO, Kyu Man OH, Hyang Sook LEE, Chul Soon PARK, Sang Eun CHAE, Joung Yul YUN, Hyun Jin KWON, Young Jae YANG, Dae Hyuck KANG, Yong Zu KIM, Sung Ho WOO, Tae Kyo PARK
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Patent number: 8242113Abstract: Disclosed is a novel oxazolidinone derivative, particularly a novel oxazolidinone compound with a cyclic amidoxime or cyclic amidrazone group. Also disclosed is a pharmaceutical antibiotic composition including a novel oxazolidinone derivative, in vivo hydrolysable ester thereof, in vivo hydrolysable phosphate ester thereof, an isomer thereof or a pharmaceutically acceptable salt thereof as an effective ingredient. Because the novel oxazolidinone derivative, in vivo hydrolysable ester thereof, in vivo hydrolysable phosphate ester thereof, an isomer thereof or a pharmaceutically acceptable salt thereof exhibits a wide antibacterial spectrum against resistant bacteria, a low toxicity, and a strong antibacterial activity against Gram-positive and Gram-negative bacteria, it can be usefully used as an antibiotic.Type: GrantFiled: September 22, 2009Date of Patent: August 14, 2012Assignee: Legochem Biosciences, Inc.Inventors: Young Lag Cho, Sang Eun Chae, Sung Yoon Baek, Yeon Ok Kim, Seong Jin Kim, Hyang Sook Lee, Ju Hyun Park, Tae Kyo Park, Sung Ho Woo, Yong Zu Kim