IP Library › Granted Patent US 11,365,194
Granted Patent B2
US 11,365,194 · App. 16/650,133 · Granted Jun 21, 2022

Analgesic drug using PAC1 receptor antagonistic drug

Inventors: Takashi Kurihara (Kagoshima, JP); Ichiro Takasaki (Toyama, JP); Naoki Toyooka (Toyama, JP); Hiroaki Gouda (Tokyo, JP)
Assignees: KAGOSHIMA UNIVERSITY; SHOWA UNIVERSITY
C07D471/04C07D403/14
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Quick Facts
Patent No.
US 11,365,194
App. No.
16/650,133
Granted
Jun 21, 2022
Kind
B2
Abstract

This invention relates to an analgesic drug comprising a compound represented by the following formula (I) or (II), wherein R 1 is a C 1-6 -alkoxy group or a C 1-6 -haloalkoxy group; R 2 is a hydrogen atom; and R is an indazolyl group substituted with a halogen atom; a substituted or unsubstituted phenyl group; a pyrazolyl group; or a substituted or unsubstituted aralkyl group; or a salt thereof, or a solvate thereof.

Claims (4)

1. A compound represented by the following formula (I),

wherein R 1 is a C 1-6 -haloalkoxy group; and R 2 is a hydrogen atom; or a salt thereof, or a solvate thereof.

2. The compound according to claim 1 or a salt thereof, or a solvate thereof, wherein R 1 is a trifluoromethoxy group in the formula (I).

3. An analgesic drug comprising a compound according to claim 1 , a salt thereof, or a solvate thereof.

Assignments (2)
CHANGE OF NAME Recorded Nov 7, 2025
From: SHOWA UNIVERSITY
To: SHOWA MEDICAL UNIVERSITY
Reel/Frame 073542/0842 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 24, 2020
From: KURIHARA, TAKASHI; TAKASAKI, ICHIRO; TOYOOKA, NAOKI; GOUDA, HIROAKI
To: KAGOSHIMA UNIVERSITY; SHOWA UNIVERSITY
Reel/Frame 052210/0563 →
Priority Claims (1)
JP JP2017-186447 · Sep 27, 2017 · national
Continuity (1)
Related Publication 20210188841A1 · Jun 24, 2021
Cited By (1)
US 12,458,643