Patents by Inventor Manabu Kusagi

Manabu Kusagi 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: 20190375723
    Abstract: The present invention provides a compound useful as a novel antitumor agent targeting a CSC that is important in continuous proliferation of malignant tumor, metastasis and recurrence of cancer, and its resistance to an antitumor agent; a medicament comprising the compound as an active ingredient; a pharmaceutical composition; and an antitumor agent; as well as a method of treating cancer and/or a method of preventing cancer. The present invention provides compounds represented by formula (I): or pharmaceutically acceptable salts thereof, wherein X is an oxygen atom or sulfur atom; R1 is a hydrogen atom, an alkyl group, or the like; R2 is a halogen atom or the like; R3 is a hydrogen atom, an alkyl group, or the like; m is 0, 1, 2, 3, or 4; and n is 1, 2, 3, or 4 (with the proviso that the sum of m and n is 1, 2, 3, or 4).
    Type: Application
    Filed: November 22, 2017
    Publication date: December 12, 2019
    Inventors: Hitoshi Ban, Seiji Kamioka, Manabu Kusagi
  • Patent number: 10294237
    Abstract: The present invention provides a bicyclic heterocyclic amide derivative of formula (1) wherein ring Q1 is optionally-substituted C6-10 aryl group, etc.; R1 and R2 are independently hydrogen atom, etc.; W1 is optionally-substituted C1-4 alkylene group; W2 is —NR3aC(O)—, etc. wherein R3a is hydrogen atom or C1-6 alkyl group; Cy1 is the following group of formula (11), etc.; ring Q2 is optionally-substituted benzene ring, etc.; n and m are independently 0, 1 or 2, provided that n and m are not simultaneously 0; X is NR5, etc.; R5 is hydrogen atom, etc.; p is 1, 2, 3, 4 or 5; R4 is, independently when two or more exist, hydrogen atom, etc.; and a pharmacologically acceptable salt thereof, which have a potent inhibitory effect on the sphere-forming ability of cancer cells and are useful as an orally-available anti-tumor agent.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: May 21, 2019
    Assignee: Sumitomo Dainippon Pharma Co., Ltd.
    Inventors: Hitoshi Ban, Manabu Kusagi, Yosuke Takanashi, Futoshi Hasegawa
  • Publication number: 20190060282
    Abstract: The present invention pertains to an imidazolylamide derivative represented by formula (1) that exhibits an exceptional suppressive effect on cancer cell sphere formation ability and that is useful as an antitumor agent that can be administered orally, or a pharmacologically acceptable salt thereof.
    Type: Application
    Filed: February 23, 2017
    Publication date: February 28, 2019
    Inventors: Hitoshi Ban, Manabu Kusagi, Shingo Tojo, Tsuguteru Otsubo, Eiji Sugaru, Hiroki Yamaguchi, Nobuyuki Sawada, Chiang Jia Li
  • Publication number: 20180194773
    Abstract: The present invention provides a bicyclic heterocyclic amide derivative of formula (1) wherein ring Q1 is optionally-substituted C6-10 aryl group, etc.; R1 and R2 are independently hydrogen atom, etc.; W1 is optionally-substituted C1-4 alkylene group; W2 is —NR3aC(O)—, etc. wherein R3a is hydrogen atom or C1-6 alkyl group; Cy1 is the following group of formula (11), etc.; ring Q2 is optionally-substituted benzene ring, etc.; n and m are independently 0, 1 or 2, provided that n and m are not simultaneously 0; X is NR5, etc.; R5 is hydrogen atom, etc.; p is 1, 2, 3, 4 or 5; R4 is, independently when two or more exist, hydrogen atom, etc.; and a pharmacologically acceptable salt thereof, which have a potent inhibitory effect on the sphere-forming ability of cancer cells and are useful as an orally-available anti-tumor agent.
    Type: Application
    Filed: June 21, 2016
    Publication date: July 12, 2018
    Inventors: Hitoshi Ban, Manabu Kusagi, Yosuke Takanashi, Futoshi Hasegawa
  • Patent number: 9828362
    Abstract: The present invention provides a 1,4-disubstituted imidazole derivative of formula (1?) wherein ring Q1 is optionally-substituted C6-10 aryl group, etc.; R1 and R2 are independently hydrogen atom, etc.; W1 is optionally-substituted C1-4 alkylene group; W2 is —NR3aC(O)— wherein R3a is hydrogen atom or C1-6 alkyl group, etc.; ring Q2 is 5- to 10-membered heteroaryl group, etc.; W3 is optionally-substituted C1-4 alkylene group, etc.; n is 1, 2, 3, 4, or 5; R4 is independently halogen atom, optionally-substituted C1-6 alkyl group, etc.; R5 is hydroxy group, etc.; and a pharmacologically acceptable salt thereof, which have a potent inhibitory effect on the sphere-forming capacity of cancer cells and are useful as an orally-available anti-tumor agent.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: November 28, 2017
    Assignee: Sumitomo Dainippon Pharma Co., Ltd.
    Inventors: Hitoshi Ban, Manabu Kusagi, Shingo Tojo, Futoshi Hasegawa, Miki Hashizume