Patents by Inventor Tokiko Asami

Tokiko Asami 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: 10793575
    Abstract: An oxoisoquinoline compound of the following formula: or a pharmaceutically acceptable salt thereof; a pharmaceutical composition comprising the oxoisoquinoline compound or salt; and a method for treating B-cell lymphoma comprising administering the oxoisoquinoline compound or salt to a patient.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: October 6, 2020
    Assignee: CARNA BIOSCIENCES, INC.
    Inventors: Wataru Kawahata, Takao Kiyoi, Takayuki Irie, Tokiko Asami, Masaaki Sawa, Shigeki Kashimoto
  • Publication number: 20200055848
    Abstract: Herein disclosed are compounds, compositions, kits, and methods of treating cancers using 7-azaindolyl furanone/thiophene derivatives. These derivatives inhibit serine-threonine kinase Cdc7, a recognized anticancer target affecting DNA replication. Further, the compounds disclosed herein possess potent inhibitory activity in the presence of adenosine triphosphate (ATP), demonstrate significant kinase selectivity, and offer advantages over known Cdc7 inhibitors with prolonged half-life and inhibitory effects.
    Type: Application
    Filed: November 2, 2017
    Publication date: February 20, 2020
    Inventors: Takayuki IRIE, Ayako SAWA, Masaaki SAWA, Tokiko ASAMI, Yoko FUNAKOSHI, Chika TANIYAMA
  • Publication number: 20190359616
    Abstract: The present invention provides with an oxoisoquinoline derivative represented by the formula (I) (in the formula, Q and R1 are as defined in the description) or a pharmaceutically acceptable salt thereof, which is useful as a Bruton's kinase inhibitor for treating cancer, B-cell lymphoma, chronic lymphocytic leukemia and the like.
    Type: Application
    Filed: November 24, 2017
    Publication date: November 28, 2019
    Applicant: CARNA BIOSCIENCES, INC.
    Inventors: Wataru KAWAHATA, Takao KIYOI, Takayuki IRIE, Tokiko ASAMI, Masaaki SAWA, Shigeki KASHIMOTO
  • Patent number: 9974795
    Abstract: Provided is a pharmaceutical composition comprising a Cdc7 inhibitor and an M phase promoter. In particular, the Cdc7 inhibitor contained in the pharmaceutical composition is a furanone derivative represented by formula (I), or a pharmaceutically acceptable salt thereof. (In the formula, A is —COOR1 or a hydrogen atom; R1 is a hydrogen atom, an optionally substituted hydrocarbon group, or an optionally substituted heterocycle; R2 and R3 are the same or different and are each a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted phenyl group, an optionally substituted heterocycle, an optionally substituted heterocyclic condensed ring, or an optionally substituted amino group. Alternatively, R2 and R3 may, together with the nitrogen atoms bonding the same, form an optionally substituted heterocycle or optionally substituted heterocyclic condensed ring. R4 is a hydrogen atom or halogen atom.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: May 22, 2018
    Assignee: CARNA BIOSCIENCES, INC.
    Inventors: Yoko Funakoshi, Chika Tanaka, Tokiko Asami, Masaaki Sawa
  • Patent number: 9656995
    Abstract: The purpose of the present invention is to provide a novel triazine derivative of the formula (I): wherein R1 represents a substituted or unsubstituted lower alkyl group, R2 represents a hydrogen atom or a substituted or unsubstituted lower alkyl group, A represents a nitrogen atom or C—R3, R3 represents a hydrogen atom, a cyano group, a substituted or unsubstituted acyl group, a substituted or unsubstituted sulfonyl group, or a substituted or unsubstituted carbamoyl group, and R4 represents a substituted or unsubstituted lower alkyl group, or a substituted or unsubstituted cycloalkyl group, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: May 23, 2017
    Assignee: CARNA BIOSCIENCES, INC.
    Inventors: Wataru Kawahata, Tokiko Asami, Masaaki Sawa, Yuko Asamitsu, Takayuki Irie, Takahiro Miyake, Takao Kiyoi
  • Publication number: 20170065609
    Abstract: Provided is a pharmaceutical composition comprising a Cdc7 inhibitor and an M phase promoter. In particular, the Cdc7 inhibitor contained in the pharmaceutical composition is a furanone derivative represented by formula (I), or a pharmaceutically acceptable salt thereof. (In the formula, A is —COOR1 or a hydrogen atom; R1 is a hydrogen atom, an optionally substituted hydrocarbon group, or an optionally substituted heterocycle; R2 and R3 are the same or different and are each a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted phenyl group, an optionally substituted heterocycle, an optionally substituted heterocyclic condensed ring, or an optionally substituted amino group. Alternatively, R2 and R3 may, together with the nitrogen atoms bonding the same, form an optionally substituted heterocycle or optionally substituted heterocyclic condensed ring. R4 is a hydrogen atom or halogen atom.
    Type: Application
    Filed: January 26, 2015
    Publication date: March 9, 2017
    Inventors: Yoko FUNAKOSHI, Chika TANAKA, Tokiko ASAMI, Masaaki SAWA
  • Publication number: 20160221991
    Abstract: To provide a novel triazine derivative represented by the following formula (I): A triazine derivative represented by the following formula (I): wherein R1 represents a substituted or unsubstituted lower alkyl group, or a substituted or unsubstituted alkoxy group, Ar represents a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group, either of Z1 and Z2 represents carbon atom and the other is nitrogen atom, or both of the Z1 and Z2 represent nitrogen atoms, Q is selected from a structure (a) and (b) described below: wherein R2 represents a substituted or unsubstituted lower alkyl group, or a substituted or unsubstituted cycloalkyl group, R3 represents a hydrogen atom or a halogen atom, Y represents a nitrogen atom or a carbon atom, and the bond drawn with a dotted line parallel to a solid line on structure (a) represents either double bond or single bond, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: September 12, 2014
    Publication date: August 4, 2016
    Inventors: Takahiro MIYAKE, Wataru KAWAHATA, Tokiko ASAMI, Masaaki SAWA
  • Publication number: 20160207906
    Abstract: To provide a novel 2,6-diaminopyrimidine derivative by the following formula (I): A 2,6-diaminopyrimidine derivative is represented by the formula (I): wherein R1 represents a substituted or unsubstituted lower alkyl group, or a substituted or unsubstituted alkoxy group, Ar represents a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group, Z1 and Z2 represent carbon atoms, or either 1 or 2 of the Z1 and Z2 represent nitrogen atoms, Q is selected from a structure (a) or (b) described below: R2 represents a substituted or unsubstituted lower alkyl group, or a substituted or unsubstituted cycloalkyl group, R3 represents a hydrogen atom or a halogen atom, Y represents a nitrogen atom or a carbon atom, and the bond drawn with a dotted line parallel to a solid line on structure (a) represents either double bond or single bond.
    Type: Application
    Filed: September 1, 2014
    Publication date: July 21, 2016
    Inventors: Wataru KAWAHATA, Tokiko ASAMI, Masaaki SAWA, Takayuki IRIE
  • Publication number: 20160168122
    Abstract: The purpose of the present invention is to provide a novel triazine derivative of the formula (I): wherein R1 represents a substituted or unsubstituted lower alkyl group, R2 represents a hydrogen atom or a substituted or unsubstituted lower alkyl group, A represents a nitrogen atom or C—R3, R3 represents a hydrogen atom, a cyano group, a substituted or unsubstituted acyl group, a substituted or unsubstituted sulfonyl group, or a substituted or unsubstituted carbamoyl group, and R4 represents a substituted or unsubstituted lower alkyl group, or a substituted or unsubstituted cycloalkyl group, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: July 15, 2014
    Publication date: June 16, 2016
    Inventors: Wataru KAWAHATA, Tokiko ASAMI, Masaaki SAWA, Yuko ASAMITSU, Takayuki IRIE, Takahiro MIYAKE, Takao KIYOI
  • Publication number: 20150011751
    Abstract: To provide a novel triazine derivative represented by the following formula (I): A triazine derivative represented by the following formula (I): wherein R1 represents a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic ring, a substituted or unsubstituted heterocyclic fused ring, or a substituted or unsubstituted alkynyl group, R2 represents a hydrogen atom, a halogen atom, a substituted or unsubstituted lower alkyl group, or a substituted or unsubstituted alkoxy group, R3 represents a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic ring, or a substituted or unsubstituted heterocyclic fused ring, R4 represents a hydrogen atom, a substituted or unsubstituted lower alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted amino group, or a halogen atom, and R5 represents a hydrogen atom, a substituted or unsubstituted lower alkyl group, or R1 and R5 may be combined to form a saturated or unsaturate
    Type: Application
    Filed: March 7, 2013
    Publication date: January 8, 2015
    Inventors: Wataru Kawahata, Tokiko Asami, Masaaki Sawa, Yuko Asamitsu, Takayuki Irie, Takahiro Miyake, Takao Kiyoi
  • Patent number: 8742113
    Abstract: To provide a novel furanone derivative, and a medicine including the same.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: June 3, 2014
    Assignees: SBI Biotech Co., Ltd., Carna Biosciences, Inc.
    Inventors: Takayuki Irie, Ayako Sawa, Masaaki Sawa, Tokiko Asami, Yoko Funakoshi, Chika Tanaka
  • Publication number: 20140018533
    Abstract: To provide a novel furanone derivative, and a medicine including the same.
    Type: Application
    Filed: March 30, 2012
    Publication date: January 16, 2014
    Applicants: CARNA BIOSCIENCES, INC., SBI BIOTECH CO., LTD.
    Inventors: Takayuki Irie, Ayako Sawa, Masaaki Sawa, Tokiko Asami, Yoko Funakoshi, Chika Tanaka
  • Patent number: RE46815
    Abstract: To provide a novel furanone derivative, and a medicine including the same.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: May 1, 2018
    Assignee: Carna Biosciences, Inc.
    Inventors: Takayuki Irie, Ayako Sawa, Masaaki Sawa, Tokiko Asami, Yoko Funakoshi, Chika Tanaka
  • Patent number: RE48140
    Abstract: To provide a novel furanone derivative, and a medicine including the same.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: August 4, 2020
    Assignee: CARNA BIOSCIENCES, INC.
    Inventors: Takayuki Irie, Ayako Sawa, Masaaki Sawa, Tokiko Asami, Yoko Funakoshi, Chika Tanaka