IP Library › Granted Patent US 12,545,643
Granted Patent B2
US 12,545,643 · App. 17/905,953 · Granted Feb 10, 2026

3,5-diaminobenzoic acid compound, and Pin1 inhibitor and therapeutic agent for inflammatory diseases using same

Inventors: Tomoichiro Asano (Higashihiroshima, JP); Yusuke Nakatsu (Higashihiroshima, JP); Hisanaka Ito (Hachioji, JP); Takayoshi Okabe (Tokyo, JP)
Assignee: Amenis Bioscience, Inc
C07D209/86A61P1/16A61P3/04A61P29/00A61P31/14C07C237/48C07C275/42C07D215/48C07D319/16C07D319/20C07D401/12C07D403/12C07D405/12C07C2601/16C07C2602/10
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Quick Facts
Patent No.
US 12,545,643
App. No.
17/905,953
Granted
Feb 10, 2026
Kind
B2
Abstract

The present invention provides: a compound represented by the following Formula (I) or a salt thereof, as well as a Pin1 inhibitor, a pharmaceutical composition, a therapeutic or prophylactic agent for inflammatory diseases, a therapeutic or prophylactic agent for fatty liver diseases, a therapeutic or prophylactic agent for obesity, and a therapeutic or prophylactic agent for COVID-19 that utilize the aforementioned compounds or the salts thereof to develop a group of novel compounds with an inhibitory activity against the function of Pin1 so as to use them as candidate compounds for medicaments.

Claims (36)

1 . A compound represented by Formula (I), or a salt thereof:

wherein ring A represents an optionally substituted monocyclic or polycyclic aromatic ring or heterocycle;

R 1 represents a group represented by any of the following Formulae (II) to (V):

wherein ring B represents an optionally substituted monocyclic heterocycle, Rings C and D independently represent an optionally substituted monocyclic or polycyclic aromatic ring, heterocycle or cyclic hydrocarbon, and the rings B, C and D form a condensed ring

wherein ring E represents an optionally substituted monocyclic heterocycle, ring F represents an optionally substituted monocyclic or polycyclic aromatic ring, heterocycle or cyclic hydrocarbon, and the rings E and F form a condensed ring

wherein rings G and H independently represent an optionally substituted monocyclic or polycyclic aromatic ring or heterocycle

wherein ring I represents an optionally substituted monocyclic aromatic ring or heterocycle, a ring J represents an optionally substituted monocyclic or polycyclic aromatic ring, heterocycle or cyclic hydrocarbon, the rings I and J form a condensed ring, and R6 represents a hydrogen atom, an optionally substituted hydrocarbon group, or an optionally substituted heterocyclic group;

R 2 represents a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted heterocyclic group, or an optionally substituted amino group;

R 3 represents a hydrogen atom, an optionally substituted hydrocarbon group, or an optionally substituted heterocyclic group;

R 4 represents a hydrogen atom, an optionally substituted hydrocarbon group, or an optionally substituted heterocyclic group;

R 5 represents 0 to 3 identical or different substituents attached to the benzene ring;

X represents a single bond, C 1-2 alkylene group, —O— group, —CH 2 —O group, —CH 2 —NH—CO— group, or —CH 2 —NH—CO—O—CH 2 — group; and

Y represents a single bond or C 1-2 alkylene group.

2 . The compound or the salt thereof according to claim 1 , wherein the ring A represents an optionally substituted polycyclic aromatic ring or heterocycle.

3 . The compound or the salt thereof according to claim 2 , wherein ring A represents a ring represented by Formula (VI):

wherein A 1 , A 2 , and A 3 independently represent a carbon atom or a nitrogen atom, and ring K represents an optionally substituted monocyclic or polycyclic aromatic ring, heterocycle or cyclic hydrocarbon.

4 . The compound or the salt thereof according to claim 3 , wherein all of A 1 , A 2 , and A 3 represent a carbon atom.

5 . The compound or the salt thereof according to claim 1 , wherein R 1 represents a group represented by Formula (II):

wherein ring B represents an optionally substituted monocyclic heterocycle, rings C and D independently represent an optionally substituted monocyclic or polycyclic aromatic ring, heterocycle or cyclic hydrocarbon, and the rings B, C and D form a condensed ring.

6 . The compound or the salt thereof according to claim 1 , wherein R 2 represents a hydrogen atom.

7 . The compound or the salt thereof according to claim 1 , wherein R 3 represents a hydrogen atom.

8 . The compound or the salt thereof according to claim 1 , wherein R 4 represents a hydrogen atom.

9 . The compound or the salt thereof according to claim 1 , wherein X represents a single bond.

10 . The compound or the salt thereof according to claim 1 , wherein Y represents a single bond.

11 . A Pin1 inhibitor comprising the compound or the salt thereof according to claim 1 .

12 . A pharmaceutical composition comprising the compound or the pharmaceutically acceptable salt thereof according to claim 1 and a pharmaceutically acceptable carrier.

13 . A method of treating or preventing an inflammatory disease, comprising administering to a subject in need thereof the compound or the pharmaceutically acceptable salt thereof according to claim 1 as an active ingredient.

14 . A method of treating or preventing an inflammatory disease, comprising administering to a subject in need thereof the compound or the pharmaceutically acceptable salt thereof according to claim 1 in combination with active ingredients in at least one or more drugs selected from a group of drugs classified as a therapeutic or prophylactic agent for the inflammatory disease.

15 . The method according to claim 13 , wherein the inflammatory disease is non-alcoholic steatohepatitis, inflammatory bowel disease, or pulmonary fibrosis.

16 . A method of treating or preventing a fatty liver disease comprising administering to a subject in need thereof the compound or the pharmaceutically acceptable salt thereof according to claim 1 as an active ingredient.

17 . A method of treating or preventing a fatty liver disease comprising administering to a subject in need thereof the compound or the pharmaceutically acceptable salt thereof according to claim 1 in combination with active ingredients in at least one or more drugs selected from a group of drugs classified as a therapeutic or prophylactic agent for the fatty liver disease.

18 . A method of treating or preventing obesity comprising administering to a subject in need thereof the compound or the pharmaceutically acceptable salt thereof according to claim 1 as an active ingredient.

19 . A method of treating of preventing obesity comprising administering to a subject in need thereof the compound or the pharmaceutically acceptable salt thereof according to claim 1 in combination with active ingredients in at least one or more drugs selected from a group of drugs classified as a therapeutic or prophylactic agent for obesity.

20 . A method of treating or preventing COVID-19 comprising administering to a subject in need thereof the compound or the pharmaceutically acceptable salt thereof according to claim 1 as an active ingredient.

21 . A method of treating or preventing COVID-19 comprising administering to a subject in need thereof the compound or the pharmaceutically acceptable salt thereof according to claim 1 in combination with active ingredients in at least one or more drugs selected from a group of drugs classified as a therapeutic or prophylactic agent for coronavirus.

22 . The method according to claim 14 , wherein the inflammatory disease is non-alcoholic steatohepatitis, inflammatory bowel disease, or pulmonary fibrosis.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 11, 2024
From: HIROSHIMA UNIVERSITY; THE UNIVERSITY OF TOKYO; TOKYO UNIVERSITY OF PHARMACY AND LIFE SCIENCES
To: AMENIS BIOSCIENCE, INC.
Reel/Frame 066781/0504 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 12, 2022
From: ASANO, TOMOICHIRO; NAKATSU, YUSUKE
To: HIROSHIMA UNIVERSITY
Reel/Frame 061059/0802 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 12, 2022
From: OKABE, TAKAYOSHI
To: THE UNIVERSITY OF TOKYO
Reel/Frame 061059/0857 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 12, 2022
From: ITO, HISANAKA
To: TOKYO UNIVERSITY OF PHARMACY & LIFE SCIENCES
Reel/Frame 061059/0887 →
Priority Claims (1)
JP 2020-043237 · Mar 12, 2020 · national
Continuity (1)
Related Publication 20230133581A1 · May 4, 2023
References Cited (9)
US 20200383967A1 · Asano et al. · 2020 [cited by applicant]
US 20200383987A1 · Asano et al. · 2020 [cited by applicant]
DE 10309005A1 · 2004 [cited by applicant]
WO WO2019031470A1 · 2019 [cited by applicant]
WO WO2019031472A1 · 2019 [cited by applicant]
WO WO2021182457A1 · 2021 [cited by applicant]
Intl. Search Report PCT/JP2021/009233 (2021) 4 pages. [cited by applicant]
Intl. Search Report PCT/JP2021/009233 (2021) 3 pages (English Translation). [cited by applicant]
Written Opinion PCT/JP2021/009233 (2021) 4 pages. [cited by applicant]