IP Library Granted Patent US 12,251,371
Granted Patent B2
US 12,251,371 · App. 18/163,388 · Granted Mar 18, 2025

Deuterated or partially deuterated N,N-dimethyltryptamine compounds

Inventors: Peter Rands (London, GB); Ellen James (London, GB); Tiffanie Benway (London, GB); Zelah Joel (London, GB); Marie Layzell (London, GB)
Assignee: Cybin UK Ltd.
A61K31/4045C07D209/16
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Quick Facts
Patent No.
US 12,251,371
App. No.
18/163,388
Granted
Mar 18, 2025
Kind
B2
Abstract

The present invention relates to compounds of formula (I) as defined herein, which comprise a greater proportion of deuterium to protium than naturally found in hydrogen; and compositions, including pharmaceutical compositions, comprising these compounds and optionally analogous compounds of formula (I), which are not deuterium-enriched. These compounds and compositions are of use in therapy, in particular in the treatment of psychiatric or neurological disorders. Varying the amounts of the different compounds within the compositions of the invention allows tailoring of the compositions' therapeutic effects. A particularly efficient synthetic method which enables compounds of formula (I) and related compounds of formula (I′) is also provided.

Claims (26)

1. A compound of formula (I):

wherein:

n is 1, and wherein R 1 is 5-methoxy or 5-bromo;

R 2 is CD 3 ;

R 3 is CD 3 or H;

and

each y H is deuterium;

or a pharmaceutically acceptable salt thereof.

2. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein R 1 is 5-methoxy.

3. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein both R 2 and R 3 are CD 3 .

4. The compound of claim 1 , in the form of a pharmaceutically acceptable salt.

5. The compound of claim 1 , wherein the pharmaceutically acceptable salt is a fumarate salt.

6. The compound of claim 2 , wherein the compound has a molecular weight from 224.3 to 226.4 grams per mole as the free base.

7. A composition comprising a compound as defined in claim 1 , or a pharmaceutically acceptable salt thereof, in combination with a pharmaceutically acceptable excipient.

8. A method of treating a psychiatric or neurological disorder in a patient, comprising administering to the patient a therapeutically effective amount of a compound according to claim 1 , or a pharmaceutically acceptable salt thereof.

9. The method according to claim 8 , wherein the psychiatric or neurological disorder is selected from (i) an obsessive compulsive disorder, (ii) a depressive disorder, (iii) a schizophrenia disorder, (iv) a schizotypal disorder, (v) an anxiety disorder, (vi) substance abuse, and (vii) an avolition disorder.

10. The method according to claim 8 , wherein the disorder is major depressive disorder, or treatment resistant depression.

11. The method according to claim 8 , wherein said administering is oral administration of the compound or salt.

12. The compound of claim 1 , which is 5-methoxy-α,α,bis-deutero-N,N-di(trideuteromethyl)tryptamine, or a pharmaceutically acceptable salt thereof.

13. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein R 1 is 5-bromo.

14. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein both R 2 and R 3 are CD 3 .

15. The compound of claim 13 , or a pharmaceutically acceptable salt thereof, wherein both R 2 and R 3 are CD 3 .

16. The compound of claim 2 , in the form of a pharmaceutically acceptable salt.

17. The compound of claim 13 , in the form of a pharmaceutically acceptable salt.

18. The compound of claim 2 , wherein the pharmaceutically acceptable salt is a fumarate salt.

19. The compound of claim 13 , wherein the pharmaceutically acceptable salt is a fumarate salt.

Assignments (2)
CHANGE OF NAME Recorded Jan 16, 2024
From: SMALL PHARMA LTD.
To: CYBIN UK LTD
Reel/Frame 066131/0335 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 2, 2023
From: RANDS, PETER; JAMES, ELLEN; BENWAY, TIFFANIE; JOEL, ZELAH; LAYZELL, MARIE
To: SMALL PHARMA LTD.
Reel/Frame 062571/0613 →
Priority Claims (6)
GB 2018955 · Dec 1, 2020 · national
GB 2103981 · Mar 22, 2021 · national
WO PCT/EP2021/060750 · Apr 23, 2021 · international
CA 3118556 · May 13, 2021 · national
GB 2106881 · May 13, 2021 · national
WO PCT/EP2021/062794 · May 13, 2021 · international
Continuity (3)
Continuation 17680411 · Feb 25, 2022
Continuation PCTEP2021082227 · Nov 18, 2021
Related Publication 20230181530A1 · Jun 15, 2023
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