IP Library Granted Patent US 12,492,182
Granted Patent B2
US 12,492,182 · App. 18/114,043 · Granted Dec 9, 2025

Hydroxytriazine compounds and pharmaceutical use thereof

Inventors: Ikuo Mitani (Osaka, JP); Yutaro Hirono (Osaka, JP); Masaki Yamashita (Osaka, JP)
Assignee: Japan Tobacco Inc.
C07D401/04A61K31/53A61P19/02A61P27/06C07D251/22
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Quick Facts
Patent No.
US 12,492,182
App. No.
18/114,043
Granted
Dec 9, 2025
Kind
B2
Abstract

The present invention provides a compound having an mPGES-1 inhibitory activity and useful for the prophylaxis or treatment of pain, rheumatism, osteoarthritis, fever, Alzheimer's disease, multiple sclerosis, arteriosclerosis, glaucoma, ocular hypertension, ischemic retinal disease, systemic scleroderma and/or cancer including colorectal cancer. The present invention relates to a compound of formula [I-a], [I-b] or [I-c] or a pharmaceutically acceptable salt thereof: wherein each symbol is as defined in the specification.

Claims (47)

1 . A compound of the formula [I-c], or a pharmaceutically acceptable salt thereof:

wherein

R is

(1) the formula:

wherein

R 1a is C 1-4 alkyl,

R 1b is C 1-4 alkyl or trifluoromethyl, and

R 1c is

(a) C 1-4 alkyl,

(b) C 1-4 fluoroalkyl,

(c) C 1-4 alkoxy, or

(d) C 1-4 alkoxy C 1-4 alkyl, or

(2) the formula:

wherein

n is 1,2, 3, 4 or 5, and

R 1d is

(a) fluoro,

(b) C 1-4 alkyl,

(c) C 1-4 fluoroalkyl,

(d) C 1-4 alkoxy, or

(e) C 1-4 alkoxy C 1-4 alkyl,

R 2 is hydrogen, and

R 6 is 1-methylbutyl or n-hexyl.

2 . The compound or pharmaceutically acceptable salt according to claim 1 , wherein R 1 is the formula:

wherein

R 1a is C 1-4 alkyl,

R 1b is C 1-4 alkyl or trifluoromethyl, and

R 1c is

(b) difluoromethyl or trifluoromethyl, or

(c) methoxy.

3 . The compound or pharmaceutically acceptable salt according to claim 1 , wherein R 1 is the formula:

wherein

n is 3, 4 or 5, and

R 1d is

(a) fluoro,

(c) C 1-4 fluoroalkyl,

(d) methoxy, or

(e) methoxymethyl.

4 . The compound or pharmaceutically acceptable salt according to claim 3 , wherein

n is 3 or 4, and

R 1d is monofluoromethyl, difluoromethyl or trifluoromethyl.

5 . A compound selected from the following formulas:

or a pharmaceutically acceptable salt thereof.

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

7 . A method of treating pain, rheumatism, fever, osteoarthritis, glaucoma, or ocular hypertension, which comprises administering a therapeutically effective amount of the compound or pharmaceutically acceptable salt according to claim 1 to a human in need thereof.

8 . A compound of the following formula or a pharmaceutically acceptable salt thereof:

9 . A compound of the following formula:

Assignments (2)
NUNC PRO TUNC ASSIGNMENT Recorded Apr 8, 2026
From: JAPAN TOBACCO INC.
To: SHIONOGI & CO., LTD.
Reel/Frame 074312/0259 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 4, 2023
From: MITANI, IKUO; HIRONO, YUTARO; YAMASHITA, MASAKI
To: JAPAN TOBACCO INC.
Reel/Frame 063538/0874 →
Priority Claims (1)
JP 2015-160284 · Aug 17, 2015 · national
Continuity (3)
Continuation 16807719 · Mar 3, 2020
Continuation 15237763 · Aug 16, 2016
Related Publication 20240076278A1 · Mar 7, 2024
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