IP Library Granted Patent US 11,905,298
Granted Patent B2
US 11,905,298 · App. 17/547,118 · Granted Feb 20, 2024

Prodrugs of fumarates and their use in treating various diseases

Inventors: Tarek A. Zeidan (Lexington, MA); Scott Duncan (Bedford, MA); Christopher P. Hencken (Boston, MA); Thomas Andrew Wynn (Lexington, MA); Carlos N. Sanrame (Lexington, MA)
Assignee: Alkermes Pharma Ireland Limited
C07D491/113A61K31/4015C07C229/12C07C229/18C07C317/18C07C317/28C07D207/12C07D207/40C07D207/408C07D211/92C07D295/088
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Quick Facts
Patent No.
US 11,905,298
App. No.
17/547,118
Granted
Feb 20, 2024
Kind
B2
Abstract

The present invention provides compounds of formula (I), wherein: R 1 is unsubstituted C 1 -C 6 alkyl; L a is substituted or unsubstituted C 1 -C 6 alkyl linker, substituted or unsubstituted C 3 -C 10 carbocycle, substituted or unsubstituted heterocycle comprising one or two 5- or 6-member rings and 1-4 heteroatoms selected from N, O and S, or substituted or unsubstituted heteroaryl comprising one or two 5- or 6-member rings and 1-4 heteroatoms selected from N, O and S; and R 2 and R 3 are each, independently, H, substituted or unsubstituted C 1 -C 6 alkyl, or substituted or unsubstituted C 6 -C 10 aryl; or alternatively, R 2 and R 3 , together with the nitrogen atom to which they are attached, form a substituted or unsubstituted heteroaryl comprising one or two 5- or 6-member rings and 1-4 heteroatoms selected from N, O and S or a substituted or unsubstituted heterocycle comprising one or two 5- or 6-member rings and 1-4 heteroatoms selected from N, O and S. The invention also provides pharmaceutical compositions and methods for treating neurological diseases, such as multiple sclerosis.

Claims (4)

1. A method of treating multiple sclerosis in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of a compound having the formula

or a pharmaceutically acceptable salt thereof.

2. A method of treating multiple sclerosis in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of a composition comprising a compound having the formula

or a pharmaceutically acceptable salt thereof.

Assignments (5)
SECURITY INTEREST Recorded Feb 13, 2026
From: ALKERMES PHARMA IRELAND LIMITED
To: JPMORGAN CHASE BANK, N.A. AS ADMINISTRATIVE AGENT
Reel/Frame 074858/0405 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (073213/0302) Recorded Feb 13, 2026
From: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
To: ALKERMES PHARMA IRELAND LIMITED
Reel/Frame 074858/0429 →
SECURITY INTEREST Recorded Oct 23, 2025
From: ALKERMES PHARMA IRELAND LIMITED
To: JPMORGAN CHASE BANK, N.A. AS ADMINISTRATIVE AGENT
Reel/Frame 073213/0302 →
RELEASE OF PATENT SECURITY AGREEMENTS Recorded Dec 24, 2024
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: ALKERMES PHARMA IRELAND LIMITED
Reel/Frame 069771/0701 →
SECURITY AGREEMENT Recorded Jul 17, 2023
From: ALKERMES PHARMA IRELAND LIMITED
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 064286/0821 →