Patents by Inventor Junshi ASADA

Junshi ASADA 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: 20260242343
    Abstract: The present invention provides a compound represented by general formula [1] and having a DDR1 kinase inhibitory activity, a pharmaceutically acceptable salt of the compound, or a solvate of the compound or the pharmaceutically acceptable salt (in the formula, R1 represents a hydrogen atom, a halogen atom, or an optionally substituted alkyl group; Het represents a 5- to 10-membered heteroaryl group; L1 represents —CO—NH— or —CRa?CRb—; X represents C—Rc; R2 represents a C1-C6 haloalkoxy group or a C1-C6 haloalkyl group; R3, R4 and carbon atoms to which these residues are bound together form an optionally substituted C3-C6 cycloalkyl group or an optionally substituted heterocycloalkyl group).
    Type: Application
    Filed: April 24, 2023
    Publication date: August 20, 2026
    Applicant: NIPPON SHINYAKU CO., LTD.
    Inventors: Hisaaki ZAIMOKU, Junshi ASADA, Kosuke HASHIMOTO, Yohei HONDA, Yota TSUZUKI, Keiji KOSUGI
  • Patent number: 12600743
    Abstract: The present invention relates to a method for producing a compound [C] of the general formula [C] by subjecting a compound [A] having a hydroxyl group or a primary or secondary amino group and a compound [B] having a phosphorous atom-containing substituent group of the general formula [1] to a condensation reaction, characterized in that the method is carried out in the presence of at least one reaction accelerator selected from the group consisting of a quaternary ammonium salt, a quaternary imidazolium salt, a quaternary morpholinium salt, a quaternary phosphonium salt, a quaternary piperidinium salt, a quaternary pyridinium salt, a quaternary pyrrolidinium salt and a quaternary sulfonium salt.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: April 14, 2026
    Assignee: NIPPON SHINYAKU CO., LTD.
    Inventor: Junshi Asada
  • Patent number: 12509424
    Abstract: An object of the present invention is to provide a compound having a PDGF receptor kinase inhibitory activity. Examples of the present invention may include, for example, a compound represented by the following formula [I] or a pharmaceutically acceptable salt thereof, or a solvate thereof. The compound of the present invention has an inhibitory activity against the PDGF receptor kinase. In addition, since the compound of the present invention has an inhibitory activity against the PDGF receptor kinase, it is useful as a therapeutic agent for respiratory diseases, cancers, smooth muscle proliferative diseases, vasoproliferative diseases, autoimmune/inflammatory diseases, metabolic diseases, vasoocclusive diseases, and the like.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: December 30, 2025
    Assignee: NIPPON SHINYAKU CO., LTD.
    Inventors: Junshi Asada, Yoshinari Haruta, Hiroyuki Yakushiji, Toru Tanaka, Kazuya Kuramoto, Keiji Kosugi, Chiaki Fuchikami
  • Publication number: 20230101484
    Abstract: An object of the present invention is to provide a compound having a PDGF receptor kinase inhibitory activity. Examples of the present invention may include, for example, a compound represented by the following formula [I] or a pharmaceutically acceptable salt thereof, or a solvate thereof. The compound of the present invention has an inhibitory activity against the PDGF receptor kinase. In addition, since the compound of the present invention has an inhibitory activity against the PDGF receptor kinase, it is useful as a therapeutic agent for respiratory diseases, cancers, smooth muscle proliferative diseases, vasoproliferative diseases, autoimmune/inflammatory diseases, metabolic diseases, vasoocclusive diseases, and the like.
    Type: Application
    Filed: December 11, 2020
    Publication date: March 30, 2023
    Applicant: NIPPON SHINYAKU CO., LTD.
    Inventors: Junshi ASADA, Yoshinari HARUTA, Hiroyuki YAKUSHIJI, Toru TANAKA, Kazuya KURAMOTO, Keiji KOSUGI, Chiaki FUCHIKAMI
  • Publication number: 20230018780
    Abstract: The present invention relates to a method for producing a compound [C] of the general formula [C] by subjecting a compound [A] having a hydroxyl group or a primary or secondary amino group and a compound [B] having a phosphorous atom-containing substituent group of the general formula [1] to a condensation reaction, characterized in that the method is carried out in the presence of at least one reaction accelerator selected from the group consisting of a quaternary ammonium salt, a quaternary imidazolium salt, a quaternary morpholinium salt, a quaternary phosphonium salt, a quaternary piperidinium salt, a quaternary pyridinium salt, a quaternary pyrrolidinium salt and a quaternary sulfonium salt.
    Type: Application
    Filed: November 13, 2020
    Publication date: January 19, 2023
    Applicant: NIPPON SHINYAKU CO., LTD.
    Inventor: Junshi ASADA