Patents by Inventor Yusuke Sawayama

Yusuke Sawayama 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: 20230219970
    Abstract: The present invention relates to the compound of formula (I) wherein R1A, R1B, R1C, and R1D are hydrogen atom, etc., R2A and R2B are hydrogen atom, etc., R3A, R3B, R3C, and R3D are hydrogen atom, etc., L is bond, etc., V is C1-6 alkylene, Q is optionally-substituted imidazole, or a pharmaceutically acceptable salt thereof, as a novel anti-tumor agent that targets CSCs which are thought to be closely involved in the persistent proliferation of malignant tumor, metastasis or recurrence of cancer, and resistance to anti-tumor agents.
    Type: Application
    Filed: March 21, 2023
    Publication date: July 13, 2023
    Applicant: Sumitomo Pharma Co., Ltd.
    Inventors: Hitoshi BAN, Seiji KAMIOKA, Yusuke SAWAYAMA, Miki HASHIZUME
  • Patent number: 11639357
    Abstract: The present invention relates to the compound of formula (I) wherein R1A, R1B, R1C, and R1D are hydrogen atom, etc., R2A and R2B are hydrogen atom, etc., R3A, R3B, R3C, and R3D are hydrogen atom, etc., L is bond, etc., V is C1-6 alkylene, Q is optionally-substituted imidazole, or a pharmaceutically acceptable salt thereof, as a novel anti-tumor agent that targets CSCs which are thought to be closely involved in the persistent proliferation of malignant tumor, metastasis or recurrence of cancer, and resistance to anti-tumor agents.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: May 2, 2023
    Assignee: Sumitomo Pharma Co., Ltd.
    Inventors: Hitoshi Ban, Seiji Kamioka, Yusuke Sawayama, Miki Hashizume
  • Patent number: 11414394
    Abstract: A process for producing a hydrate of a hydrochloride salt of 2,2?-((((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(ethane-2,1-diyl))bis(azanediyl))diacetic acid of the formula: wherein the process comprises the following step: recrystallizing the hydrochloride salt of 2,2?-((((((2-acetylnaphtho[2,3-b]furan-4,9-diyl)bis(oxy))bis(carbonyl))bis(azanediyl))bis(ethane-2,1-diyl))bis(azanediyl))diacetic acid, in the presence of hydrochloric acid and a recrystallization solvent; wherein the recrystallization solvent is methanol, ethanol, 2-propanol, diethyl ether, ethyl acetate, benzene, toluene, acetone, dichloromethane, chloroform, hexane, dimethylformamide, acetonitrile, or water; or mixed solvent thereof.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: August 16, 2022
    Assignees: SUMITOMO PHARMA ONCOLOGY, INC., SUMITOMO PHARMA CO., LTD.
    Inventors: Hitoshi Ban, Seiji Kamioka, Yusuke Sawayama, Chiang Jia Li
  • Patent number: 11279694
    Abstract: Compounds having the following structure (I) or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof, wherein R1, R2 and R3 are as defined herein, and wherein at least one of R1, R2 and R3 is not H, are provided. Pharmaceutical compositions comprising the compounds and methods for use of the compounds for treating diseases associated with overexpression of a cyclin-dependent kinase (CDK) are also provided.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: March 22, 2022
    Assignee: Sumitomo Dainippon Pharma Oncology, Inc.
    Inventors: Adam Siddiqui-Jain, Yusuke Sawayama, Wataru Hirose, Hitoshi Ban
  • Publication number: 20210002290
    Abstract: The present invention relates to the compound of formula (I) wherein R1A, R1B, R1C, and R1D are hydrogen atom, etc., R2A and R2B are hydrogen atom, etc., R3A, R3B, R3C, and R3D are hydrogen atom, etc., L is bond, etc., V is C1-6 alkylene, Q is optionally-substituted imidazole, or a pharmaceutically acceptable salt thereof, as a novel anti-tumor agent that targets CSCs which are thought to be closely involved in the persistent proliferation of malignant tumor, metastasis or recurrence of cancer, and resistance to anti-tumor agents.
    Type: Application
    Filed: July 31, 2020
    Publication date: January 7, 2021
    Applicant: Sumitomo Dainippon Pharma Co., Ltd.
    Inventors: Hitoshi BAN, Seiji Kamioka, Yusuke Sawayama, Miki Hashizume
  • Publication number: 20200392098
    Abstract: The present invention provides compounds represented by formula (1A), or pharmaceutically acceptable salts. Compounds represented by formula (1A), or pharmaceutically acceptable salts thereof, wherein A1 and A2 are identical or different, and each independently —C(?O)B, —C(?O)CR3AR3BB, —CO2B, —C(?S)OB, —CONR3CB, —C(?S)NR3CB, a hydrogen atom, or the like, wherein A1 and A2 are not both hydrogen atoms, wherein B is an optionally substituted 3- to 12-membered monocyclic or polycyclic heterocyclic group, an optionally substituted 3- to 12-membered cyclic amino group, or a group represented by the following formula (B), wherein the 3- to 12-membered monocyclic or polycyclic heterocyclic group and the 3- to 12-membered cyclic amino group have at least one or more secondary nitrogen atoms in the ring; R1 is a hydrogen atom or the like; R2A, R2B, R2C, and R2D are identical or different, and each independently a hydrogen atom or the like; and R8 is alkyl. wherein * denotes a bonding position.
    Type: Application
    Filed: August 28, 2020
    Publication date: December 17, 2020
    Applicants: BOSTON BIOMEDICAL, INC., SUMITOMO DAINIPPON PHARMA CO., LTD.
    Inventors: Hitoshi BAN, Seiji KAMIOKA, Yusuke SAWAYAMA, Chiang Jia LI
  • Patent number: 10807993
    Abstract: The present invention relates to the compound of formula (I) wherein R1A, R1B, R1C, and R1D are hydrogen atom, etc., R2A and R2B are hydrogen atom, etc., R3A, R3B, R3C, and R3D are hydrogen atom, etc., L is bond, etc., V is C1-6 alkylene, Q is optionally-substituted imidazole, or a pharmaceutically acceptable salt thereof, as a novel anti-tumor agent that targets CSCs which are thought to be closely involved in the persistent proliferation of malignant tumor, metastasis or recurrence of cancer, and resistance to anti-tumor agents.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: October 20, 2020
    Assignee: Sumitomo Dainippon Pharma Co., Ltd.
    Inventors: Hitoshi Ban, Seiji Kamioka, Yusuke Sawayama, Miki Hashizume
  • Patent number: 10800752
    Abstract: The present invention provides compounds represented by formula (1A), or pharmaceutically acceptable salts. Compounds represented by formula (1A), or pharmaceutically acceptable salts thereof, wherein A1 and A2 are identical or different, and each independently —C(?O)B, —C(?O)CR3AR3BB, —CO2B, —C(?S)OB, —CONR3CB, —C(?S)NR3CB, a hydrogen atom, or the like, wherein A1 and A2 are not both hydrogen atoms, wherein B is an optionally substituted 3- to 12-membered monocyclic or polycyclic heterocyclic group, an optionally substituted 3- to 12-membered cyclic amino group, or a group represented by the following formula (B), wherein the 3- to 12-membered monocyclic or polycyclic heterocyclic group and the 3- to 12-membered cyclic amino group have at least one or more secondary nitrogen atoms in the ring; R1 is a hydrogen atom or the like; R2A, R2B, R2C, and R2D are identical or different, and each independently a hydrogen atom or the like; and R8 is alkyl. wherein * denotes a bonding position.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: October 13, 2020
    Assignees: BOSTON BIOMEDICAL, INC., SUMITOMO DAINIPPON PHARMA CO., LTD.
    Inventors: Hitoshi Ban, Seiji Kamioka, Yusuke Sawayama, Chiang Jia Li
  • Publication number: 20200216461
    Abstract: The present invention relates to the compound of formula (I) wherein R1A, R1B, R1C, and R1D are hydrogen atom, etc., R2A and R2B are hydrogen atom, etc., R3A, R3B, R3C, and R3D are hydrogen atom, etc., L is bond, etc., V is C1-6 alkylene, Q is optionally-substituted imidazole, or a pharmaceutically acceptable salt thereof, as a novel anti-tumor agent that targets CSCs which are thought to be closely involved in the persistent proliferation of malignant tumor, metastasis or recurrence of cancer, and resistance to anti-tumor agents.
    Type: Application
    Filed: March 3, 2020
    Publication date: July 9, 2020
    Applicant: Sumitomo Dainippon Pharma Co., Ltd.
    Inventors: Hitoshi BAN, Seiji KAMIOKA, Yusuke SAWAYAMA, Miki HASHIZUME
  • Publication number: 20200207782
    Abstract: The present invention addresses the problem of providing a novel chemically activated water-soluble prodrug. The present invention provides a compound represented by formula (1), or a pharmacologically acceptable salt thereof (in the formula, A represents A-0; X1 and X2 are the same as or different from each other and each independently represent a hydroxyl group or —O—C(?O)—Y—(C(R1A) (R1B))n-NH—R2, where X1 and X2 are not simultaneously hydroxyl groups, n is 2, 3, or 4, Y represents an oxygen atom or —NR4, R1A and R1B are the same as or different from each other and each independently represent a hydrogen atom, etc., and R2 represents a hydrogen atom, etc.; and Ra to Rd are optionally present, are the same as or different from each other, and each independently represent a hydrogen atom, etc.).
    Type: Application
    Filed: September 21, 2018
    Publication date: July 2, 2020
    Applicant: SUMITOMO DAINIPPON PHARMA CO., LTD
    Inventors: Seiji KAMIOKA, Yusuke SAWAYAMA, Hitoshi BAN, Yosuke TAKANASHI
  • Publication number: 20200048228
    Abstract: Compounds having the following structure (I) or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof, wherein R1, R2 and R3 are as defined herein, and wherein at least one of R1, R2 and R3 is not H, are provided. Pharmaceutical compositions comprising the compounds and methods for use of the compounds for treating diseases associated with overexpression of a cyclin-dependent kinase (CDK) are also provided.
    Type: Application
    Filed: November 17, 2017
    Publication date: February 13, 2020
    Inventors: Adam Siddiqui-Jain, Yusuke Sawayama, Wataru Hirose, Hitoshi Ban
  • Publication number: 20190084955
    Abstract: The present invention provides compounds represented by formula (1A), or pharmaceutically acceptable salts. Compounds represented by formula (1A), or pharmaceutically acceptable salts thereof, wherein A1 and A2 are identical or different, and each independently —C(?O)B, —C(?O)CR3AR3BB, —CO2B, —C(?S)OB, —CONR3CB, —C(?S)NR3CB, a hydrogen atom, or the like, wherein A1 and A2 are not both hydrogen atoms, wherein B is an optionally substituted 3- to 12-membered monocyclic or polycyclic heterocyclic group, an optionally substituted 3- to 12-membered cyclic amino group, or a group represented by the following formula (B), wherein the 3- to 12-membered monocyclic or polycyclic heterocyclic group and the 3- to 12-membered cyclic amino group have at least one or more secondary nitrogen atoms in the ring; R1 is a hydrogen atom or the like; R2A, R2B, R2C, and R2D are identical or different, and each independently a hydrogen atom or the like; and R8 is alkyl. wherein * denotes a bonding position.
    Type: Application
    Filed: November 19, 2018
    Publication date: March 21, 2019
    Applicants: BOSTON BIOMEDICAL, INC., SUMITOMO DAINIPPON PHARMA CO., LTD.
    Inventors: Hitoshi BAN, Seiji KAMIOKA, Yusuke SAWAYAMA, Chiang Jia LI
  • Patent number: 10183925
    Abstract: The present invention provides compounds represented by formula (1A), or pharmaceutically acceptable salts. Compounds represented by formula (1A), or pharmaceutically acceptable salts thereof, wherein A1 and A2 are identical or different, and each independently —C(?O) B, —C(?O)CR3AR3BB, —CO2B, —C(?S)OB, —CONR3CB, —C(?S)NR3CB, a hydrogen atom, or the like, wherein A1 and A2 are not both hydrogen atoms, wherein B is an optionally substituted 3- to 12-membered monocyclic or polycyclic heterocyclic group, an optionally substituted 3- to 12-membered cyclic amino group, or a group represented by the following formula (B), wherein the 3- to 12-membered monocyclic or polycyclic heterocyclic group and the 3- to 12-membered cyclic amino group have at least one or more secondary nitrogen atoms in the ring; R1 is a hydrogen atom or the like; R2A, R2B, R2C, and R2D are identical or different, and each independently a hydrogen atom or the like; and R8 is alkyl. wherein * denotes a bonding position.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: January 22, 2019
    Assignees: BOSTON BIOMEDICAL, INC., SUMITOMO DAINIPPON PHARMA CO., LTD.
    Inventors: Hitoshi Ban, Seiji Kamioka, Yusuke Sawayama, Chiang Jia Li
  • Publication number: 20180111914
    Abstract: The present invention provides compounds represented by formula (1A), or pharmaceutically acceptable salts. Compounds represented by formula (1A), or pharmaceutically acceptable salts thereof, wherein A1 and A2 are identical or different, and each independently —C(?O) B, —C(?O)CR3AR3BB, —CO2B, —C(?S)OB, —CONR3CB, —C(?S)NR3CB, a hydrogen atom, or the like, wherein A1 and A2 are not both hydrogen atoms, wherein B is an optionally substituted 3- to 12-membered monocyclic or polycyclic heterocyclic group, an optionally substituted 3- to 12-membered cyclic amino group, or a group represented by the following formula (B), wherein the 3- to 12-membered monocyclic or polycyclic heterocyclic group and the 3- to 12-membered cyclic amino group have at least one or more secondary nitrogen atoms in the ring; R1 is a hydrogen atom or the like; R2A, R2B, R2C, and R2D are identical or different, and each independently a hydrogen atom or the like; and R8 is alkyl. wherein * denotes a bonding position.
    Type: Application
    Filed: March 25, 2016
    Publication date: April 26, 2018
    Applicants: BOSTON BIOMEDICAL, INC., SUMITOMO DAINIPPON PHARMA CO., LTD.
    Inventors: Hitoshi BAN, Seiji KAMIOKA, Yusuke SAWAYAMA, Chiang Jia LI
  • Publication number: 20150259344
    Abstract: Provided is a therapeutic agent for diseases associated with a cholinergic property of the central nervous system (CNS) and/or the peripheral nervous system (PNS), diseases associated with the contraction of smooth muscle, incretion disease, diseases associated with neuronal degeneration and the like, said therapeutic agent comprising a compound represented by Formula (I): [wherein X—Y—Z represents N—CO—NR4AR4B or the like; R1 represents a phenyl group or the like; R2A and R2B may be the same as or different from each other and independently represent a hydrogen atom or the like; R3A to R3D and R6 may be the same as or different from one another and independently represent a hydrogen atom or the like; R4A and R4B may be the same as or different from each other and independently represent an aryl group or the like; and n represents 1 or 2] or a pharmaceutically acceptable salt thereof and having a potent activity of regulating an ?7 nicotinic acetylcholine receptor (an ?7 nAChR).
    Type: Application
    Filed: October 1, 2013
    Publication date: September 17, 2015
    Inventors: Mitsutaka Iwata, Satoshi Suetsugu, Yusuke Sawayama, Yoko Nakai