IP Library Patent Application 13856380
Patent Application
App. No. 13/856,380

BRUTON'S TYROSINIE KINASE ACTIVITY PROBE AND METHOD OF USING

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Patent No.
US None
App. No.
13/856,380
Abstract

Described herein are probes for Bruton's tyrosine kinase (Btk). Such probes are used to characterize and develop Btk-selective inhibitors intended for therapeutic use.

Claims (4)

1 .- 25 . (canceled)

26 . A compound having the structure:

27 . A process for the preparation of (R)-3-(4-phenoxyphenyl)-1-(piperidin-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (4) comprising treatment of (R)-tert-butyl 3-(4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidine-1-carboxylate (3) with acid followed by treatment with base to form (R)-3-(4-phenoxyphenyl)-1-(piperidin-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (4):

28 . The process of claim 27 , wherein (R)-3-(4-phenoxyphenyl)-1-(piperidin-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine is isolated.

Assignments (4)
CORRECTIVE ASSIGNMENT TO CORRECT THE CONVEYING PARTY DATA PREVIOUSLY RECORDED ON REEL 036126 FRAME 0368. ASSIGNOR(S) HEREBY CONFIRMS THE MERGER AND CHANGE OF NAME. Recorded May 18, 2016
From: PHARMACYCLICS, INC.; OXFORD AMHERST LLC
To: PHARMACYCLICS LLC
Reel/Frame 038742/0371 →
CORRECTIVE ASSIGNMENT TO CORRECT THE CONVEYING PARTY DATA PREVIOUSLY RECORDED ON REEL 036126 FRAME 0359. ASSIGNOR(S) HEREBY CONFIRMS THE MERGER. Recorded May 17, 2016
From: OXFORD AMHERST CORPORATION; PHARMACYCLICS, INC.
To: PHARMACYCLICS, INC.
Reel/Frame 038742/0064 →
MERGER Recorded Jul 16, 2015
From: OXFORD AMHERST CORPORATION
To: PHARMACYCLICS, INC.
Reel/Frame 036126/0359 →
MERGER AND CHANGE OF NAME Recorded Jul 16, 2015
From: PHARMACYCLICS, INC.; OXFORD AMHERST LLC
To: PHARMACYCLICS LLC
Reel/Frame 036126/0368 →