IP Library › Granted Patent US 11,970,439
Granted Patent B1
US 11,970,439 · App. 18/385,147 · Granted Apr 30, 2024

8-(4-chlorobenzylideneamino)naphthalene-1,3-disulfonic acid as an antioxidant compound

Inventors: Hany Mohamed Abd El-Lateef Ahmed (Al-Ahsa, SA); Mai Mostafa Khalaf Ali (Al-Ahsa, SA); Antar Ahmed Abdelhamid Ahmed (Sohag, EG); Amer A. Amer (Sohag, EG)
Assignee: KING FAISAL UNIVERSITY
C07C309/47A61P39/06C07C303/22C07C303/44
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Quick Facts
Patent No.
US 11,970,439
App. No.
18/385,147
Granted
Apr 30, 2024
Kind
B1
Abstract

An 8-(4-chlorobenzylideneamino)naphthalene-1,3-disulfonic acid compound, its synthesis, and its use as an antioxidant agent.

Claims (11)

1. An 8-(4-chlorobenzylideneamino)naphthalene-1,3-disulfonic acid compound having the formula I:

2. A pharmaceutically acceptable composition comprising a therapeutically effective amount of the 8-(4-chlorobenzylideneamino)naphthalene-1,3-disulfonic acid compound of claim 1 and a pharmaceutically acceptable carrier.

3. A method of making the 8-(4-chlorobenzylideneamino)naphthalene-1,3-disulfonic acid compound of claim 1 , the method comprising:

mixing 8-aminonaphthalene-1,3-disulfonic acid, 4-chlorobenzaldehyde, and triethylamine (TEA) in ethanol to obtain a solution;

irradiating the solution followed by cooling to room temperature to obtain a formed precipitate;

purifying the formed precipitate by filtering and recrystallization using ethanol; and

obtaining the 8-(4-chlorobenzylideneamino)naphthalene-1,3-disulfonic acid compound.

4. The method of making the 8-(4-chlorobenzylideneamino)naphthalene-1,3-disulfonic acid compound of claim 3 , wherein the irradiating the solution takes place in a sonicator for at least about 2 hours.

5. The method of making the 8-(4-chlorobenzylideneamino)naphthalene-1,3-disulfonic acid compound of claim 3 , wherein the irradiating the solution is conducted at about 50° C.

6. The method of making the 8-(4-chlorobenzylideneamino)naphthalene-1,3-disulfonic acid compound of claim 3 , wherein the purifying the formed precipitate includes collecting the formed precipitate by filtration and washing the formed precipitate with distilled water.

7. The method of making the 8-(4-chlorobenzylideneamino)naphthalene-1,3-disulfonic acid compound of claim 3 , wherein the 8-aminonaphthalene-1,3-disulfonic acid and the 4-chlorobenzaldehyde are added in about a 1:1 molar ratio.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 8, 2023
From: AHMED, HANY MOHAMED ABD EL-LATEEF; ALI, MAI MOSTAFA KHALAF; AHMED, ANTAR AHMED ABDELHAMID; AMER, AMER A.
To: KING FAISAL UNIVERSITY
Reel/Frame 065494/0314 →