THERAPEUTIC AGENT FOR PAIN

• US 20170327474A1
• Filed: 07/31/2017
• Published: 11/16/2017
• Est. Priority Date: 09/07/2010
• Status: Abandoned Application

• Current Assignee: Astellas Pharma Incorporated
• Original Assignee: Astellas Pharma Incorporated
• Inventors: KISO, Tetsuo, TSUKAMOTO, Mina
• Application Number:
  US15/664,733
• Publication Number:
  US 20170327474A1
• Time in Patent Office: Days
• CPC Class Codes: A61K 31/4196 1,2,4-Triazoles
• CPC Class Codes: A61P 21/00 Drugs for disorders of the muscular or neuromuscular system
• CPC Class Codes: A61P 25/00 Drugs for disorders of the nervous system
• CPC Class Codes: A61P 25/04 Centrally acting analgesics, e.g. opioids
• CPC Class Codes: A61P 29/00 Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
• CPC Class Codes: C07D 249/08 1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
• CPC Class Codes: C07D 403/04 directly linked by a ring-member-to-ring-member bond
• CPC Class Codes: C07D 413/12 linked by a chain containing hetero atoms as chain links

Abstract

[Problem]

Provided is a pharmaceutical, in particular, a pharmaceutical composition which is useful for the treatment of pain.

[Means for Solution]

The present inventors have made extensive studies using model animals with pain for the purpose of providing a therapeutic agent for pain. As a result, they have found that 11β-hydroxydehydrogenase type 1 (11β-HSD1) inhibitor, in particular, a triazole compound having a cyclic group at the 3-position (or 5-position) of a triazole ring has a good effect of ameliorating chronic pain. That is, according to the present invention, a pharmaceutical composition comprising an 11β-HSD1 inhibitor, in particular, the triazole compound of the present invention, as an active ingredient, is useful for the treatment of pain (particularly, neuropathic pain or fibromyalgia).

Claims

1. (canceled)

2. A method for treating fibromyalgia, comprising administering, to a subject in need thereof, an effective amount of a compound selected from the group consisting of:

3-(2-chloro-4-fluorophenyl)-4-methyl-5-[1-methyl-1-(2,4,6-trifluorophenoxy)ethyl]-4H-1,2,4-triazole,

3-[1-(4-chloro-2,6-difluorophenoxy)-1-methylethyl]-5-(2-chlorophenyl)-4-methyl-4H-1,2,4-triazole,

4-{5-[1-(4-chloro-2,6-difluorophenoxy)-1-methylethyl]-4-ethyl-4H-1,2,4-triazol-3-yl}benzamide,

4-{5-[1-(4-chloro-2,6-difluorophenoxy)-1-methylethyl]-4-methyl-4H-1,2,4-triazol-3-yl}-3-fluorobenzamide,

4-{4-cyclopropyl-5-[1-(2,4-difluorophenoxy)-1-methylethyl]-4H-1,2,4-triazol-3-yl}-3-fluorobenzamide, and

3-fluoro-4-{4-isopropyl-5-[1-methyl-1-(2,4,6-trifluorophenoxy)ethyl]-4H-1,2,4-triazol-3-yl}benzamide, or

a pharmaceutically acceptable salt thereof.

3. The method according to claim 2, wherein said compound is 3-(2-chloro-4-fluorophenyl)-4-methyl-5-[1-methyl-1-(2,4,6-trifluorophenoxy)ethyl]-4H-1,2,4-triazole or a pharmaceutically acceptable salt thereof.

4. The method according to claim 2, wherein said compound is 3-[1-(4-chloro-2,6-difluorophenoxy)-1-methylethyl]-5-(2-chlorophenyl)-4-methyl-4H-1,2,4-triazole or a pharmaceutically acceptable salt thereof.

5. The method according to claim 2, wherein said compound is 4-{5-[1-(4-chloro-2,6-difluorophenoxy)-1-methylethyl]-4-ethyl-4H-1,2,4-triazol-3-yl}benzamide or a pharmaceutically acceptable salt thereof.

6. The method according to claim 2, wherein said compound is 4-{5-[1-(4-chloro-2,6-difluorophenoxy)-1-methylethyl]-4-methyl-4H-1,2,4-triazol-3-yl-3-fluorobenzamide or a pharmaceutically acceptable salt thereof.

7. The method according to claim 2, wherein said compound is 4-4-cyclopropyl-5-[1-(2,4-difluorophenoxy)-1-methylethyl]-4H-1,2,4-triazol-3-yl}-3-fluorobenzamide or a pharmaceutically acceptable salt thereof.

8. The method according to claim 2, wherein said compound is 3-fluoro-4-{4-isopropyl-5-[1-methyl-1-(2,4,6-trifluorophenoxy)ethyl]-4H-1,2,4-triazol-3-yl}benzamide or a pharmaceutically acceptable salt thereof.