IP Library › Granted Patent US 12,577,196
Granted Patent B2
US 12,577,196 · App. 17/603,780 · Granted Mar 17, 2026

Quaternary amine compounds with isopropylmethylphenol ester moieties as antivirals, antibacterials and antimycotics

Inventors: Haig Babikian (Singapore, SG); Benjamin Jiaravanon (Singapore, SG)
Assignee: Rhea Genetics PTE. LTD.
C07C229/38A61P31/04A61P31/10A61P31/22C07C227/16
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Quick Facts
Patent No.
US 12,577,196
App. No.
17/603,780
Granted
Mar 17, 2026
Kind
B2
Abstract

Disclosed are compounds having the following formula (I):Formula (I) wherein R is an alkylene chain having between 8 and 20 carbon atoms, and A is one or more anions having a total charge of −2, or R is a quaternary amine having the following formula (Ia):Formula (Ia) wherein R a and R b are each an alkylene chain having between 8 and 20 carbon atoms, and A is one or more anions having a total charge of −3; R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are each independently selected from C 1-10 alkyl and H; E has the following Formula (Ib), wherein the ester oxygen is bonded to the aromatic ring of each E at the same position, the position being position 2 or 3; and wherein R E is H or a halide.

Claims (53)

1 . A compound having the following formula:

wherein R is an alkylene chain having between 8 and 20 carbon atoms, and A is one or more anions having a total charge of −2,

or R is an amine having the following formula:

wherein R a and R b are each an alkylene chain having between 8 and 20 carbon atoms, and A is one or more anions having a total charge of −3;

R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are each independently selected from C 1-10 alkyl and H;

E has the following formula

wherein the ester oxygen is bonded to the aromatic ring of each E at the same position, the position being position 2 or 3; and wherein RE is H or a halide.

2 . A compound according to claim 1 , having the following formula:

3 . A compound according to claim 1 , wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are each methyl.

4 . A compound according to claim 1 , having the following formulae:

5 . A compound having the following formula:

wherein R is an alkylene chain having between 8 and 20 carbon atoms, and A is one or more anions having a total charge of −2,

or R is an amine having the following formula:

wherein R a and R b are each an alkylene chain having between 8 and 20 carbon atoms, and A is one or more anions having a total charge of −3;

R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are each independently selected from C 1-10 alkyl and H;

E has the following formula

wherein the ester oxygen is bonded to the aromatic ring of each E at the same position, the position being 2 or 3;

wherein RE is H or a halide and wherein X is 2, 3, 4 or 6.

6 . A compound according to claim 5 having the following formula:

7 . A compound according to claim 1, 2, 5 or 6 , wherein R is a saturated linear alkylene chain having between 8 and 16 carbon atoms.

8 . A compound according to claim 1, 2, 5 or 6 , wherein R a and R b are each a saturated linear alkylene chain having between 8 and 16 carbon atoms.

9 . A compound according to claim 1, 2, 5 or 6 , wherein the one or more anions are selected from chloride anions and bromide anions.

10 . A compound according to claim 5 or 6 having the following formula:

wherein X is 3 or 6.

11 . A pharmaceutical composition comprising the compound of any of claim 1, 2, or 3-6 .

12 . A compound according to any one of claim 1, 2, or 3-6 for use as a medicament.

13 . A compound according to any one of claim 1, 2, or 3-6 for use in the treatment of fungal infections and/or bacterial infections.

14 . A compound according to any one of claim 1, 2, or 3-6 for use in the treatment of Herpes virus and/or Human Papilloma virus.

15 . A process for producing the compound according to claim 1 comprising:

i) reacting a compound having the formula (XV)

wherein the alcohol group is bonded to the benzene ring in position 2 or 3, and RE is H or a halide, with R 7 CH 2 COCl to form a compound having the formula (XVI):

wherein R 7 is chlorine or bromine, E is

wherein the ester oxygen is bonded to the aromatic ring of E at position 2 or 3, and wherein RE is H or a halide; and

ii) reacting 1 molar equivalents of the compound having the formula (XVII)

with 2 molar equivalent of the compound having formula (XVI) to form a compound having the formula

wherein R is an alkylene chain having between 8 and 20 carbon atoms, and A is one or more anions having a total charge of −2;

or R is an amine having the following formula:

wherein R a and R b are each an alkylene chain having between 8 and 20 carbon atoms, and A is one or more anions having a total charge of −3;

E has the following formula

wherein the ester oxygen is bonded to the aromatic ring of each E at the same position, the position being position 2 or 3 and wherein RE is H or a halide;

R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are each independently selected from C 1-10 alkyl and H.

16 . The process according to claim 15 , wherein the reactions of step II is carried out in acetonitrile as solvent.

17 . A process for the production of a compound according to claim 5 comprising reacting the compound having formula (I)

with bromine to form a compound having formula (VIII)

wherein R is an alkylene chain having between 8 and 20 carbon atoms, and A is one or more anions having a total charge of −2,

or R is an amine having the following formula:

wherein R a and R b are each an alkylene chain having between 8 and 20 carbon atoms, and A is one or more anions having a total charge of −3;

R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are each independently selected from C 1-10 alkyl and H;

E has the following formula

wherein the ester oxygen is bonded to the aromatic ring of each E at the same position, the position being 2 or 3;

wherein RE is H or a halide; and wherein X is 2, 3, 4 or 6.

18 . A compound according to claim 1, 2, 5 or 6 , wherein R is a saturated linear alkylene chain having 10 carbon atoms.

19 . A compound according to claim 1, 2, 5 or 6 , wherein R a and R b are each a saturated linear alkylene chain having 10 carbon atoms.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 9, 2021
From: BABIKIAN, HAIG; JIARAVANON, BENJAMIN
To: RHEA GENETICS PTE. LTD.
Reel/Frame 058345/0137 →
Priority Claims (1)
GB 1905390 · Apr 16, 2019 · national
Continuity (1)
Related Publication 20220213024A1 · Jul 7, 2022
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