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EP0351173A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Substance having anti-retrovirus activity

Assignee: Osaka Prefectural Government
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Filing: 1989-07-10
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Granted: —
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Expires: 2009-07-10
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Abstract

Abstract A reaction product of Amphotericin B with a sulfonating agent, having an excellent anti-retrovirus activity, especially an excellent HIV proliferation inhibitory activity. The substance of the present invention can be used for prevention and/or treatment of a retrovirus infection diseases such as AIDS.

Inventors

  • 👤 Toru Otake
  • 👤 Haruyo Mori
  • 👤 Noboru Ueba
  • 👤 Keiichi Miyano
  • 👤 Kazuo Matsumoto
  • 👤 Tamon Moriya

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 22:05
CPC Classifications
C; C07; C07H; C07H17/00; C07H17/04; C07H17/08; A; A61; A61P; A61P31/00; A61P31/12

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 16 words
A reaction product of Amphotericin B with a sulfonating agent, or a pharmaceutically acceptable salt thereof.
Claim 2
Dependent Claim 16 words
A reaction product of Amphotericin B with a sulfonating agent, or a pharmaceutically acceptable salt thereof.
Claim 3
Dependent Claim 11 words
The reaction product of claim 1 which has an anti-retrovirus activity.
Claim 4
Dependent Claim 12 words
The reaction product of claim 1 which has an HIV proliferation-inhibitory activity.
Claim 5
Dependent Claim 67 words
The reaction product of claim 1 which has the following physicochemical properties: (1) IR absorption spectra by KBr tablet method: Absorption band at around 3450-3420, 1630, 1240, 1120-1110 and 620 cm⁻¹ (2) Ratio of carbon, nitrogen and sulfur atoms: C : N : S = 21-22 : 1 : 3-4 (3) Solubility: Highly soluble in water, hardly soluble in ethanol, and insoluble in ethyl acetate and ether.
Claim 6
Dependent Claim 74 words
The reaction product of claim 1 which has the following physicochemical properties: (1) IR absorption spectra by KBr tablet method: Absorption band at around 3450, 1630, 1240, 1120 and 620 cm⁻¹. (2) High performance liquid chromatogram: [conditions; stationary phase: octadecanylated silica-gel, 15 cm x 4.6 mmφ, mobile phase: methanol : water = 40 : 60, column temperature: 25°C, detector: UV 254 nm, flow rate: 0.5 ml/min.] Retention time of main peak: around 1.9 minutes.
Claim 7
Dependent Claim 74 words
The reaction product of claim 1 which has the following physicochemical properties: (1) IR absorption spectra by KBr tablet method: Absorption band at around 3420, 1630, 1240, 1110 and 620 cm⁻¹. (2) High performance liquid chromatogram: [conditions; stationary phase: octadecanylated silica-gel, 15 cm x 4.6 mmφ, mobile phase: methanol : water = 40 : 60, column temperature: 25°C, detector: UV 254 nm, flow rate: 0.5 ml/min.] Retention time of main peak: around 1.8 minutes.
Claim 8
Dependent Claim 32 words
A pharmaceutical composition which comprises a therapeutically effective amount of a reaction product of Amphotericin B with a sulfonating agent, or a pharmaceutically acceptable salt thereof and a pharmaceutically acceptable carrier therefor.
Claim 9
Dependent Claim 32 words
A pharmaceutical composition which comprises a therapeutically effective amount of a reaction product of Amphotericin B with a sulfonating agent, or a pharmaceutically acceptable salt thereof and a pharmaceutically acceptable carrier therefor.
Claim 10
Dependent Claim 25 words
An anti-retrovirus agent comprising a reaction product of Amphotericin B with a sulfonating agent, or a pharmaceutically acceptable salt thereof as an active therapeutic substance.
Claim 11
Dependent Claim 25 words
An anti-retrovirus agent comprising a reaction product of Amphotericin B with a sulfonating agent, or a pharmaceutically acceptable salt thereof as an active therapeutic substance.
Claim 12
Dependent Claim 25 words
The use of the agent of claim 8 for the manufacture of a medicament for the therapeutic treatment of the acquired immune deficiency syndrome (AIDS).
Claim 13
Dependent Claim 25 words
The use of the agent of claim 8 for the manufacture of a medicament for the therapeutic treatment of the human immunodeficiency virus (HIV) infection.

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