IP Library Granted Patent US 12,673,924
Granted Patent B2
US 12,673,924 · App. 18/279,920 · Granted Jul 7, 2026

Valiolamine derivatives as glucosidase inhibitors

Inventors: Anthony M. Treston (Gaithersburg, MD); Kelly Lyn Warfield (Gaithersburg, MD)
Assignee: EMERGENT PRODUCT DEVELOPMENT GAITHERSBURG INC.
C07D239/26A61K31/136A61K31/27A61K31/4192A61K31/505C07C215/44C07C217/08C07C229/10C07C247/16C07C271/20C07D249/06C07D257/04
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Quick Facts
Patent No.
US 12,673,924
App. No.
18/279,920
Granted
Jul 7, 2026
Kind
B2
Abstract

This disclosure is directed to N-substituted valiolamine compounds, their use as glycosidase inhibitors, and in methods of treating diseases or conditions in which glycosidase inhibition provides benefit.

Claims (30)

1 . A compound according to Formula (I):

or a pharmaceutically acceptable salt thereof,

wherein

W 1 -W 5 are each independently selected from the group consisting of —H, benzyl, —C(═O)—C 1 -C 9 alkyl, and —C(═O)O—C 1 -C 9 alkyl;

R 1 is optionally substituted C 1 -C 9 alkylene;

R 2 is absent or selected from the group consisting of —NH—, —O—, —C(═O)—, and —NH—C(═O)O—;

R 3 is absent or selected from the group consisting of —O—, —C(═O)—, —C(═O)O, and optionally substituted C 1 -C 6 alkylene;

R 4 is —NH—;

R 5 is

wherein

X 1 , X 2 , X 3 , X 4 , and X 5 are each independently selected from the group consisting of —H, —NO 2 , —N 3 , optionally substituted C 2 -C 12 heterocycle, and optionally substituted C 1 -C 12 heteroaryl.

2 . The compound of claim 1 , wherein W 1 -W 5 are each independently —H.

3 . The compound of claim 2 , wherein R 1 is a C 1 -C 9 alkylene.

4 . The compound of claim 1 , wherein R 3 is a C 1 -C 6 alkylene or —C(═O)O—.

5 . The compound of claim 1 , wherein R 5 is

and wherein X 1 , X 2 , X 3 , X 4 , and X 5 are each independently selected from the group consisting of —H, —NO 2 , —N 3 , a C 2 -C 12 heterocycle, and a C 1 -C 12 heteroaryl.

6 . The compound of claim 5 , wherein X 3 is —N 3 or a C 1 -C 12 heteroaryl.

7 . The compound of claim 5 , wherein X 3 is —N 3 .

8 . The compound of claim 5 , wherein X 3 is a C 1 -C 12 heteroaryl, and wherein the C 1 -C 12 heteroaryl is selected from the group consisting of

9 . The compound of claim 5 , wherein X 1 is —NO 2 .

10 . The compound of claim 5 , wherein X 2 , X 4 , and X 5 are each —H.

11 . The compound of claim 1 , wherein the compound is selected from the group consisting of:

12 . A pharmaceutical composition comprising the compound of claim 1 and at least one pharmaceutically acceptable excipient.

13 . A method of treating diabetes, the method comprising administering to a subject in need thereof, a therapeutically effective amount of the compound of claim 1 .

14 . The method of claim 13 , wherein the diabetes is Type I diabetes or Type II diabetes.

15 . A method for inhibiting glycosidase function, the method comprising administering to a subject in need thereof a therapeutically effective amount of the compound of claim 1 .

16 . A method for treating or preventing a viral infection, the method comprising administering to a subject in need thereof a therapeutically effective amount of the compound of claim 1 .

17 . The method of claim 16 , wherein the viral infection is selected from the group consisting of hepatitis C virus (HCV) infection, hepatitis B virus (HBV) infection, dengue virus (DENV) infection, Marburg virus (MARV) infection, Ebola virus (EBOV) infection, BVHV, human immunodeficiency virus (HIV) infection, influenza A infection, influenza B infection, encephalitis virus infection, Zika virus infection, and yellow fever virus (YFV) infection.

18 . The method of claim 17 , wherein the encephalitis virus infection is eastern equine encephalitis virus infection, western equine encephalitis virus infection, and Japanese encephalitis virus (JEV) infection.

19 . The compound of claim 1 , wherein R 2 is —O— or —NH—C(═O)O—.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 12, 2026
From: WARFIELD, KELLY LYN; TRESTON, ANTHONY M.
To: EMERGENT PRODUCT DEVELOPMENT GAITHERSBURG INC.
Reel/Frame 074937/0294 →
RELEASE OF SECURITY INTEREST Recorded Apr 29, 2026
From: OHA AGENCY LLC, IN ITS CAPACITY AS ADMINISTRATIVE AGENT
To: EMERGENT PRODUCT DEVELOPMENT GAITHERSBURG INC.
Reel/Frame 074509/0661 →
SECURITY INTEREST Recorded Apr 16, 2026
From: EMERGENT BIOSOLUTIONS INC.; EMERGENT BIODEFENSE OPERATIONS LANSING LLC; EMERGENT PRODUCT DEVELOPMENT GAITHERSBURG INC.; EMERGENT TRAVEL HEALTH INC.; EMERGENT MANUFACTURING OPERATIONS BALTIMORE LLC
To: ORBIMED ROYALTY & CREDIT OPPORTUNITIES V, LP, AS ADMINISTRATIVE AGENT
Reel/Frame 074389/0054 →
SECURITY INTEREST Recorded Sep 30, 2024
From: EMERGENT BIODEFENSE OPERATIONS LANSING LLC; EMERGENT BIOSOLUTIONS INC.; EMERGENT PRODUCT DEVELOPMENT GAITHERSBURG INC.; EMERGENT MANUFACTURING OPERATIONS BALTIMORE LLC; EMERGENT TRAVEL HEALTH INC.; EMERGENT BIOSOLUTIONS CANADA INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 068746/0698 →
NOTICE OF GRANT OF SECURITY INTEREST IN U.S. PATENTS Recorded Sep 3, 2024
From: EMERGENT BIODEFENSE OPERATIONS LANSING LLC; EMERGENT BIOSOLUTIONS CANADA INC.; EMERGENT BIOSOLUTIONS INC.; EMERGENT MANUFACTURING OPERATIONS BALTIMORE LLC; EMERGENT PRODUCT DEVELOPMENT GAITHERSBURG INC.; EMERGENT TRAVEL HEALTH INC.
To: OHA AGENCY LLC
Reel/Frame 068828/0233 →
Continuity (3)
Provisional Application 63201194 · Apr 16, 2021
Provisional Application 63156253 · Mar 3, 2021
Related Publication 20240174619A1 · May 30, 2024
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