IP Library Granted Patent US 9,295,660
Granted Patent B2
US 9,295,660 · App. 13/883,038 · Granted Mar 29, 2016

Antimalarial drug comprising alaremycin or derivative thereof as active ingredient

Inventors: Masaaki Wachi (Tokyo, JP); Shigeharu Sato (London, GB); Tohru Tanaka (Tokyo, JP); Kiwamu Takahashi (Tokyo, JP)
Assignees: Tokyo Institute of Technology; SBI Pharmaceuticals Co., Ltd.
A61K31/197A61K9/0019A61K9/107A61K9/2018A61K9/2027A61K31/16A61K31/221
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Quick Facts
Patent No.
US 9,295,660
App. No.
13/883,038
Granted
Mar 29, 2016
Kind
B2
Abstract

Provided is a preventive and/or therapeutic agent for malaria, comprising, as an active ingredient, 5-acetamido-4-oxo-5-hexenoic acid (Alaremycin) or a derivative thereof. A preventive and/or therapeutic agent for malaria is used which comprises, as an active ingredient, Alaremycin or a derivative thereof represented by formula (I) (wherein R 1 represents a hydroxy group, an amino group, or a substituted or unsubstituted straight chain or branched alkoxy group or alkylamino group having 1 to 8 carbons; R 2 represents hydrogen, a substituted or unsubstituted straight chain or branched alkyl group having 1 to 8 carbons, or a substituted or unsubstituted aromatic group having 4 to 10 carbons; and R 3 represents hydrogen or a methyl group).

Claims (15)

1. A method of treating or preventing malaria in a subject in need thereof, comprising administering to the subject Alaremycin or a derivative thereof represented by Formula (I),

wherein R 1 represents a hydroxy group, an amino group, or a substituted or unsubstituted straight chain or branched alkoxy group or alkylamino group having 1 to 8 carbons; R 2 represents hydrogen, a substituted or unsubstituted straight chain or branched alkyl group having 1 to 8 carbons, or a substituted or unsubstituted aromatic group having 4 to 10 carbons; and R 3 represents hydrogen or a methyl group, or a pharmaceutically acceptable salt thereof, in an amount effective to treat or prevent malaria in the subject.

2. The method according to claim 1 , wherein R 1 represents a hydroxy group; R 2 represents a methyl group; and R 3 represents hydrogen.

3. The method according to claim 1 , wherein R 1 represents a methoxy group; R 2 represents a methyl group; and R 3 represents hydrogen.

4. The method according to claim 1 , wherein R 1 represents an amino group; R 2 represents a methyl group; and R 3 represents hydrogen.

5. The method according to claim 1 , in which the Alaremycin or derivative thereof is administered in a pharmaceutical preparation comprising a pharmaceutically acceptable carrier.

6. A method of treating or preventing malaria in a subject in need thereof, comprising administering to the subject a pharmaceutical preparation comprising Alaremycin or a derivative thereof as active ingredient and a pharmaceutically acceptable carrier, wherein the Alaremycin or a derivative thereof is represented by Formula (I),

wherein R 1 represents a hydroxy group, an amino group, or a substituted or unsubstituted straight chain or branched alkoxy group or alkylamino group having 1 to 8 carbons; R 2 represents hydrogen, a substituted or unsubstituted straight chain or branched alkyl group having 1 to 8 carbons, or a substituted or unsubstituted aromatic group having 4 to 10 carbons; and R 3 represents hydrogen or a methyl group, or a pharmaceutically acceptable salt thereof, and wherein the preparation is administered in an amount effective to treat or prevent malaria in the subject.

7. The method according to claim 6 , wherein R 1 represents a hydroxy group; R 2 represents a methyl group; and R 3 represents hydrogen.

8. The method according to claim 6 , wherein R 1 represents a methoxy group; R 2 represents a methyl group; and R 3 represents hydrogen.

9. The method according to claim 6 , wherein R 1 represents an amino group; R 2 represents a methyl group; and R 3 represents hydrogen.

10. The method according to claim 1 , wherein the Alaremycin or derivative thereof is administered via a route selected from oral, inhalation, or parenteral.

11. The method according to claim 10 , wherein the Alaremycin or derivative thereof is administered in tablet form or by injection.

12. The method according to claim 6 , wherein the preparation is administered via a route selected from oral, inhalation, or parenteral.

13. The method according to claim 12 , wherein the preparation is administered in tablet form or by injection.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 2, 2013
From: WACHI, MASAAKI; SATO, SHIGEHARU; TANAKA, TOHRU; TAKAHASHI, KIWAMU
To: TOKYO INSTITUTE OF TECHNOLOGY; SBI PHARMACEUTICALS CO., LTD.
Reel/Frame 030334/0081 →
Priority Claims (1)
JP 2010-251562 · Nov 10, 2010 · national
Continuity (1)
Related Publication 20130217913A1 · Aug 22, 2013