公开(公告)号：US20250051322A1

公开(公告)日：2025-02-13

申请号：US18722917

申请日：2023-01-12

Applicant: Eisai R&D Management Co., Ltd.

Inventor： Ikuo Kushida ,  Yoko Ito ,  So Yasui ,  Takashi Fukuyama ,  Nobuaki Sato ,  Taro Asaba

IPC: C07D451/02 ,  A61K31/506

Abstract: Crystals of compounds represented by formula (I) having potential as drug substances for pharmaceuticals, as well as salts of compounds represented by formula (I) and their crystals.

公开(公告)号：US11420980B2

公开(公告)日：2022-08-23

申请号：US17021544

申请日：2020-09-15

Applicant: Eisai R&D Management Co., Ltd.

Inventor： Kenshi Yoshida ,  Yoshiaki Ohashi ,  Tamaki Hoshikawa ,  Nobuaki Sato ,  Ikuo Kushida

IPC: C07D495/22 ,  A61P25/28 ,  A61P25/00 ,  A61P25/16

Abstract: Salts of the compound represented by formula (I) or crystals thereof have a potential use as drug substances for pharmaceuticals.

公开(公告)号：US11267821B2

公开(公告)日：2022-03-08

申请号：US16807335

申请日：2020-03-03

Applicant: Eisai R&D Management Co., Ltd.

Inventor： Yoshiaki Ohashi ,  Yoshihiko Norimine ,  Tamaki Hoshikawa ,  Yu Yoshida ,  Yoshihisa Kobayashi ,  Nobuhiro Sato ,  Koji Hagiwara ,  Nobuaki Sato ,  Shinsuke Hirota ,  Takaaki Harada ,  Hikaru Yoshimura

IPC: C07D495/22 ,  A61K31/551 ,  A61P25/00 ,  C07D491/22 ,  C07D491/147

Abstract: The present invention provides compounds represented by formulas (I) to (XVII) or pharmaceutically acceptable salts thereof:

公开(公告)号：US20130296352A1

公开(公告)日：2013-11-07

申请号：US13914898

申请日：2013-06-11

Applicant: Eisai R&D Management Co., Ltd.

Inventor： Yoshihiko Norimine ,  Kunitoshi Takeda ,  Koji Hagiwara ,  Yuichi Suzuki ,  Yuki Ishihara ,  Nobuaki Sato

IPC: C07D471/04

CPC classification number: C07D471/04

Abstract: A compound and/or pharmacologically acceptable salt thereof represented by the formula (I) has PDE9 inhibitory action, so that the intracerebral cGMP concentration is anticipated to be elevated. The PDE9 inhibitory action and the increase in cGMP lead to the improvement of learning and memory behaviors, and the compound (I) has applicability as a therapeutic agent for cognitive dysfunctions in Alzheimer's disease. wherein R1 is a hydrogen atom; R2 is an aromatic ring group, etc.; R3 is a hydrogen atom, etc; R4 is a hydrogen atom; R5 is an oxepanyl group, etc.; R6 is a hydrogen atom.

公开(公告)号：US11358972B2

公开(公告)日：2022-06-14

申请号：US16807335

申请日：2020-03-03

Applicant: Eisai R&D Management Co., Ltd.

Inventor： Yoshiaki Ohashi ,  Yoshihiko Norimine ,  Tamaki Hoshikawa ,  Yu Yoshida ,  Yoshihisa Kobayashi ,  Nobuhiro Sato ,  Koji Hagiwara ,  Nobuaki Sato ,  Shinsuke Hirota ,  Takaaki Harada ,  Hikaru Yoshimura

IPC: C07D495/22 ,  A61K31/551 ,  A61P25/00 ,  C07D491/22 ,  C07D491/147

Abstract: The present invention provides compounds represented by formulas (I) to (XVII) or pharmaceutically acceptable salts thereof:

公开(公告)号：US20210024541A1

公开(公告)日：2021-01-28

申请号：US17021544

申请日：2020-09-15

Applicant: Eisai R&D Management Co., Ltd.

Inventor： Kenshi Yoshida ,  Yoshiaki Ohashi ,  Tamaki Hoshikawa ,  Nobuaki Sato ,  Ikuo Kushida

IPC: C07D495/22 ,  A61P25/00 ,  A61P25/28 ,  A61P25/16

Abstract: Salts of the compound represented by formula (I) or crystals thereof have a potential use as drug substances for pharmaceuticals.

公开(公告)号：US20200283452A1

公开(公告)日：2020-09-10

申请号：US16807335

申请日：2020-03-03

Applicant: Eisai R&D Management Co., Ltd.

Inventor： Yoshiaki Ohashi ,  Yoshihiko Norimine ,  Tamaki Hoshikawa ,  Yu Yoshida ,  Yoshihisa Kobayashi ,  Nobuhiro Sato ,  Koji Hagiwara ,  Nobuaki Sato ,  Shinsuke Hirota ,  Takaaki Harada ,  Hikaru Yoshimura

IPC: C07D495/22 ,  C07D491/147 ,  C07D491/22

Abstract: The present invention provides compounds represented by formulas (I) to (XVII) or pharmaceutically acceptable salts thereof:

公开(公告)号：US08563565B2

公开(公告)日：2013-10-22

申请号：US13644745

申请日：2012-10-04

Applicant: Eisai R&D Management Co., Ltd.

Inventor： Yoshihiko Norimine ,  Kunitoshi Takeda ,  Koji Hagiwara ,  Yuichi Suzuki ,  Yuki Ishihara ,  Nobuaki Sato

IPC: A01N43/54 ,  A01N43/58 ,  A01N43/60 ,  A61K31/505 ,  A61K31/535 ,  C07D413/00 ,  C07D487/00 ,  C07D471/00 ,  C07D403/00

CPC classification number: C07D471/04

Abstract: A compound and/or pharmacologically acceptable salt thereof represented by the formula (I) has PDE9 inhibitory action, so that the intracerebral cGMP concentration is anticipated to be elevated. The PDE9 inhibitory action and the increase in cGMP lead to the improvement of learning and memory behaviors, and the compound (I) has a potential use of a therapeutic agent for cognitive dysfunctions in Alzheimer's disease. wherein R1 is a hydrogen atom; R2 is an aromatic ring group, etc.; R3 is a hydrogen atom, etc; R4 is a hydrogen atom; R5 is an oxepanyl group, etc.; R6 is a hydrogen atom.

Abstract translation: 由式（I）表示的化合物和/或其药理学上可接受的盐具有PDE9抑制作用，从而预期脑内cGMP浓度升高。 PDE9抑制作用和cGMP的增加导致学习和记忆行为的改善，并且化合物（I）在阿尔茨海默病中具有治疗剂对认知功能障碍的潜在用途。 其中R1是氢原子; R2是芳环等; R3是氢原子等; R4是氢原子; R5是氧环丙烷基等。 R6是氢原子。

公开(公告)号：US20130143907A1

公开(公告)日：2013-06-06

申请号：US13644745

申请日：2012-10-04

Applicant: Eisai R&D Management Co., Ltd.

Inventor： Yoshihiko Norimine ,  Kunitoshi Takeda ,  Koji Hagiwara ,  Yuichi Suzuki ,  Yuki Ishihara ,  Nobuaki Sato

IPC: C07D471/04

CPC classification number: C07D471/04

Abstract: A compound and/or pharmacologically acceptable salt thereof represented by the formula (I) has PDE9 inhibitory action, so that the intracerebral cGMP concentration is anticipated to be elevated. The PDE9 inhibitory action and the increase in cGMP lead to the improvement of learning and memory behaviors, and the compound (I) has applicability as a therapeutic agent for cognitive dysfunctions in Alzheimer's disease. wherein R1 is a hydrogen atom; R2 is an aromatic ring group, etc.; R3 is a hydrogen atom, etc; R4 is a hydrogen atom; R5 is an oxepanyl group, etc.; R6 is a hydrogen atom.

Abstract translation: 由式（I）表示的化合物和/或其药理学上可接受的盐具有PDE9抑制作用，从而预期脑内cGMP浓度升高。 PDE9抑制作用和cGMP增加导致学习和记忆行为的改善，化合物（I）具有作为阿尔茨海默病认知功能障碍治疗剂的适用性。 其中R1是氢原子; R2是芳环等; R3是氢原子等; R4是氢原子; R5是氧环丙烷基等。 R6是氢原子。

公开(公告)号：US09550776B2

公开(公告)日：2017-01-24

申请号：US14778202

申请日：2014-04-03

Applicant: Eisai R&D Management Co., Ltd.

Inventor： Yoshihiko Norimine ,  Nobuaki Sato ,  Yuki Ishihara ,  Kunitoshi Takeda

IPC: A61K31/44 ,  C07D471/00 ,  C07D471/04 ,  A61K31/4745

CPC classification number: C07D471/04 ,  A61K31/4745

Abstract: A compound represented by formula (I), or a pharmaceutically acceptable salt thereof: wherein R1 represents a group represented by the formula: a group represented by the formula: or a group represented by the formula: and R2 represents a 3-methyltetrahydro-2H-pyran-4-yl group or 4-methoxycyclohexyl group.

Abstract translation: 由式（I）表示的化合物或其药学上可接受的盐：其中R 1表示由下式表示的基团：由下式表示的基团或由下式表示的基团：R 2表示3-甲基四氢 -2H-吡喃-4-基或4-甲氧基环己基。