IP Library Granted Patent US 7,491,732
Granted Patent B2
US 7,491,732 · App. 11/450,901 · Granted Feb 17, 2009

Compositions and methods for inhibition of the JAK pathway

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Quick Facts
Patent No.
US 7,491,732
App. No.
11/450,901
Granted
Feb 17, 2009
Kind
B2
Abstract

The invention encompasses compounds having formula I-V and the compositions and methods using these compounds in the treatment of conditions in which modulation of the JAK pathway or inhibition of JAK kinases, particularly JAK3, may be therapeutically useful.

Claims (6)

1. A compound selected from the group consisting of N2-(3-Aminosulfonyl-4-methylphenyl)-5-fluoro-N4-[4-(prop-2-ynyloxy)phenyl]-2,4-pyrimidinediamine and 5-Fluoro-N2-(4-methyl-3-propionylaminosulfonylphenyl)-N4-[4-(prop-2-ynyloxy)phenyl]-2,4-pyrimidinediamine.

2. A compound which is N2-(3-Aminosulfonyl-4-methylphenyl)-5-fluoro-N4-[4-(prop-2-ynyloxy)phenyl]-2,4-pyrimidinediamine.

3. A compound which is 5-Fluoro-N2-(4-methyl-3-propionylaminosulfonylphenyl)-N4-[4-(prop-2-ynyloxy)phenyl]-2,4-pyrimidinediamine.

4. A pharmaceutical composition comprising the compound of claim 1 and at least one pharmaceutically acceptable excipient, diluent, preservative, stabilizer, or mixtures thereof.

5. A pharmaceutical composition comprising the compound of claim 2 and at least one pharmaceutically acceptable excipient, diluent, preservative, stabilizer, or mixtures thereof.

6. A pharmaceutical composition comprising the compound of claim 3 and at least one pharmaceutically acceptable excipient, diluent, preservative, stabilizer, or mixtures.

Assignments (3)
SECURITY INTEREST Recorded May 8, 2026
From: RIGEL PHARMACEUTICALS, INC.
To: MIDCAP FUNDING IV TRUST
Reel/Frame 075576/0880 →
SECURITY INTEREST Recorded Aug 25, 2022
From: RIGEL PHARMACEUTICALS, INC.
To: MIDCAP FINANCIAL TRUST
Reel/Frame 061327/0712 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 12, 2006
From: LI, HUI; THOTA, SAMBAIAH; CARROLL, DAVID; ARGADE, ANKUSH; TSO, KIN; SRAN, ARVINDER; CLOUGH, JEFFREY; BHAMIDIPATI, SOMASEKHAR; TAYLOR, VANESSA; COOPER, ROBIN; SINGH, RAJINDER; WONG, BRIAN; KEIM, HOLGER
To: RIGEL PHARMACEUTICALS, INC.
Reel/Frame 018237/0020 →