IP Library Granted Patent US 8,153,821
Granted Patent B2
US 8,153,821 · App. 13/130,954 · Granted Apr 10, 2012

Compounds

Assignee: Targacept, Inc.
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Quick Facts
Patent No.
US 8,153,821
App. No.
13/130,954
Granted
Apr 10, 2012
Kind
B2
Abstract

The present invention related to compounds that bind to and modulate the activity of neuronal nicotinic acetylcholine receptors, to novel salts thereof, to processes for preparing these compounds, to pharmaceutical compositions containing these compounds, and to methods of using these compounds for treating a wide variety of conditions and disorders, including those associated with dysfunction of the central nervous system (CNS).

Claims (5)

1. A compound diethyl (R)-2-(1-(tert-butoxycarbonyl)pyrrolidin-3-yl)malonate.

2. A compound (R)-2-(1-(tert-butoxycarbonyl)pyrrolidin-3-yl)malonic acid.

3. A compound tert-butyl (R)-3-(2-hydroxyethyl)pyrrolidine-1-carboxylate.

4. A compound tert-butyl (R)-3-(2-iodoethyl)pyrrolidine-1-carboxylate.

5. A method of making tert-butyl (R)-3-vinylpyrrolidine-1-carboxylate through the intermediacy of one or more of diethyl (R)-2-(1-(tert-butoxycarbonyl)pyrrolidin-3-yl)malonate, (R)-2-(1-(tert-butoxycarbonyl)pyrrolidin-3-yl)malonic acid, tert-butyl (R)-3-(2-hydroxyethyl)pyrrolidine-1-carboxylate, and tert-butyl (R)-3-(2-iodoethyl)pyrrolidine-1-carboxylate.

Assignments (5)
RELEASE OF SECURITY INTEREST Recorded Feb 3, 2023
From: ORBIMED ROYALTY & CREDIT OPPORTUNITIES III, LP
To: OYSTER POINT PHARMA INC.
Reel/Frame 062582/0873 →
CORRECTIVE ASSIGNMENT TO CORRECT THE THE CONVEYING PARTY EXECUTION DATE PREVIOUSLY RECORDED AT REEL: 041044 FRAME: 0211. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Oct 26, 2021
From: TARGACEPT, INC.
To: CATALYST BIOSCIENCES, INC.
Reel/Frame 057923/0518 →
PATENT SECURITY AGREEMENT Recorded Aug 5, 2021
From: OYSTER POINT PHARMA, INC.
To: ORBIMED ROYALTY & CREDIT OPPORTUNITIES III, LP
Reel/Frame 057104/0189 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 13, 2017
From: CATALYST BIOSCIENCES, INC.
To: OYSTER POINT PHARMA, INC.
Reel/Frame 041043/0769 →
CHANGE OF NAME Recorded Jan 13, 2017
From: TARGACEPT, INC.
To: CATALYST BIOSCIENCES, INC.
Reel/Frame 041044/0211 →
Continuity (2)
Provisional Application 61118885 · Dec 1, 2008
Related Publication 20110269975A1 · Nov 3, 2011