IP Library Granted Patent US 11,203,574
Granted Patent B2
US 11,203,574 · App. 16/828,763 · Granted Dec 21, 2021

Human plasma kallikrein inhibitors

Inventors: Pravin L. Kotian (Hoover, AL); Yarlagadda S. Babu (Birmingham, AL); Minwan Wu (Vestavia Hills, AL); Venkat R. Chintareddy (Vestavia Hills, AL); V. Satish Kumar (Birmingham, AL); Weihe Zhang (Vestavia, AL)
Assignee: BioCryst Pharmaceuticals, Inc.
C07D231/14C07D401/04C07D401/12C07D401/14C07D403/04C07D403/12C07D405/12C07D413/04C07D413/12C07D417/12
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Quick Facts
Patent No.
US 11,203,574
App. No.
16/828,763
Granted
Dec 21, 2021
Kind
B2
Abstract

Disclosed are compounds of formula I as described herein, and pharmaceutically acceptable salts thereof. The compounds are disclosed to be inhibitors of plasma kallikrein. Also provided are pharmaceutical compositions comprising at least one compound of the invention, and methods involving use of the compounds and compositions of the invention in the treatment and prevention of diseases and conditions characterized by unwanted plasma kallikrein activity.

Claims (24)

1. A compound, or a pharmaceutically acceptable salt thereof, selected from the group consisting of:

wherein the stereochemical configuration at any chiral center is R, S, or a mixture of R and S.

2. The compound of claim 1 , wherein the compound is

or a pharmaceutically acceptable salt thereof.

3. The compound of claim 1 , wherein the pharmaceutically acceptable salt thereof is a hydrochloride salt.

4. The compound of claim 1 , wherein the pharmaceutically acceptable salt thereof is a bis(hydrochloride) salt.

5. The compound of claim 2 , wherein the pharmaceutically acceptable salt thereof is a hydrochloride salt.

6. The compound of claim 2 , wherein the pharmaceutically acceptable salt thereof is a bis(hydrochloride) salt.

7. A method of treating a disease or condition characterized by unwanted plasma kallikrein activity, comprising administering to a subject in need thereof a therapeutically effective amount of a compound of claim 1 .

8. The method of claim 7 , wherein the disease or condition characterized by unwanted plasma kallikrein activity is selected from the group consisting of stroke, inflammation, reperfusion injury, acute myocardial infarction, deep vein thrombosis, post fibrinolytic treatment condition, angina, edema, angioedema, hereditary angioedema, sepsis, arthritis, hemorrhage, blood loss during cardiopulmonary bypass, inflammatory bowel disease, diabetes mellitus, retinopathy, diabetic retinopathy, diabetic macular edema, diabetic macular degeneration, age-related macular edema, age-related macular degeneration, proliferative retinopathy, neuropathy, hypertension, brain edema, increased albumin excretion, macroalbuminuria, and nephropathy.

9. The method of claim 7 , wherein the disease or condition characterized by unwanted plasma kallikrein activity is angioedema.

10. The method of claim 7 , wherein the disease or condition characterized by unwanted plasma kallikrein activity is hereditary angioedema.

11. A method of treating a disease or condition characterized by unwanted plasma kallikrein activity, comprising administering to a subject in need thereof a therapeutically effective amount of a compound of claim 2 .

12. The method of claim 11 , wherein the disease or condition characterized by unwanted plasma kallikrein activity is selected from the group consisting of stroke, inflammation, reperfusion injury, acute myocardial infarction, deep vein thrombosis, post fibrinolytic treatment condition, angina, edema, angioedema, hereditary angioedema, sepsis, arthritis, hemorrhage, blood loss during cardiopulmonary bypass, inflammatory bowel disease, diabetes mellitus, retinopathy, diabetic retinopathy, diabetic macular edema, diabetic macular degeneration, age-related macular edema, age-related macular degeneration, proliferative retinopathy, neuropathy, hypertension, brain edema, increased albumin excretion, macroalbuminuria, and nephropathy.

13. The method of claim 11 , wherein the disease or condition characterized by unwanted plasma kallikrein activity is angioedema.

14. The method of claim 11 , wherein the disease or condition characterized by unwanted plasma kallikrein activity is hereditary angioedema.

15. A method of treating a disease or condition characterized by unwanted plasma kallikrein activity, comprising administering to a subject in need thereof a therapeutically effective amount of a compound of claim 3 .

16. The method of claim 15 , wherein the disease or condition characterized by unwanted plasma kallikrein activity is selected from the group consisting of stroke, inflammation, reperfusion injury, acute myocardial infarction, deep vein thrombosis, post fibrinolytic treatment condition, angina, edema, angioedema, hereditary angioedema, sepsis, arthritis, hemorrhage, blood loss during cardiopulmonary bypass, inflammatory bowel disease, diabetes mellitus, retinopathy, diabetic retinopathy, diabetic macular edema, diabetic macular degeneration, age-related macular edema, age-related macular degeneration, proliferative retinopathy, neuropathy, hypertension, brain edema, increased albumin excretion, macroalbuminuria, and nephropathy.

17. The method of claim 15 , wherein the disease or condition characterized by unwanted plasma kallikrein activity is angioedema.

18. The method of claim 15 , wherein the disease or condition characterized by unwanted plasma kallikrein activity is hereditary angioedema.

19. A method of treating a disease or condition characterized by unwanted plasma kallikrein activity, comprising administering to a subject in need thereof a therapeutically effective amount of a compound of claim 4 .

20. The method of claim 19 , wherein the disease or condition characterized by unwanted plasma kallikrein activity is selected from the group consisting of stroke, inflammation, reperfusion injury, acute myocardial infarction, deep vein thrombosis, post fibrinolytic treatment condition, angina, edema, angioedema, hereditary angioedema, sepsis, arthritis, hemorrhage, blood loss during cardiopulmonary bypass, inflammatory bowel disease, diabetes mellitus, retinopathy, diabetic retinopathy, diabetic macular edema, diabetic macular degeneration, age-related macular edema, age-related macular degeneration, proliferative retinopathy, neuropathy, hypertension, brain edema, increased albumin excretion, macroalbuminuria, and nephropathy.

21. The method of claim 19 , wherein the disease or condition characterized by unwanted plasma kallikrein activity is angioedema.

22. The method of claim 19 , wherein the disease or condition characterized by unwanted plasma kallikrein activity is hereditary angioedema.

Assignments (7)
SECURITY INTEREST Recorded Jan 23, 2026
From: BIOCRYST PHARMACEUTICALS, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 074485/0651 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT COLLATERAL RECORDED AT REEL 063363/FRAME 0873 Recorded Oct 8, 2025
From: BIOPHARMA CREDIT PLC
To: BIOCRYST PHARMACEUTICALS, INC.
Reel/Frame 073056/0492 →
PATENT SECURITY AGREEMENT Recorded Apr 19, 2023
From: BIOCRYST PHARMACEUTICALS, INC.
To: BIOPHARMA CREDIT PLC
Reel/Frame 063363/0873 →
RELEASE OF GRANT OF SECURITY INTEREST IN PATENTS Recorded Apr 18, 2023
From: ATHYRIUM OPPORTUNITIES III CO-INVEST 1 LP
To: BIOCRYST PHARMACEUTICALS, INC.
Reel/Frame 063362/0550 →
RELEASE OF SECURITY INTEREST Recorded Apr 17, 2023
From: MIDCAP FINANCIAL TRUST
To: BIOCRYST PHARMACEUTICALS, INC.; MDCP, LLC
Reel/Frame 063342/0116 →
SECURITY INTEREST Recorded Apr 10, 2023
From: BIOCRYST PHARMACEUTICALS, INC.
To: ATHYRIUM OPPORTUNITIES III CO-INVEST 1 LP
Reel/Frame 063284/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 27, 2020
From: KOTIAN, PRAVIN L.; BABU, YARLAGADDA S.; WU, MINWAN; CHINTAREDDY, VENKAT R.; KUMAR, V. SATISH; ZHANG, WEIHE
To: BIOCRYST PHARMACEUTICALS, INC.
Reel/Frame 052244/0930 →
Continuity (5)
Division 16009943 · Jun 15, 2018
Division 15123059
Provisional Application 61981515 · Apr 18, 2014
Provisional Application 61949808 · Mar 7, 2014
Related Publication 20210047276A1 · Feb 18, 2021