IP Library Granted Patent US 9,782,488
Granted Patent B2
US 9,782,488 · App. 12/530,412 · Granted Oct 10, 2017

Oligomer-beta blocker conjugates

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Quick Facts
Patent No.
US 9,782,488
App. No.
12/530,412
Granted
Oct 10, 2017
Kind
B2
Abstract

The invention provides water-soluble oligomer-beta blocker drug conjugates. A drug conjugate of the invention can be administered by any of a number of administration routes and exhibits properties that are different from the corresponding beta blocker not attached to the water-soluble oligomer.

Claims (18)

1. A compound according to Formula I-C:

wherein:

R 1 is lower alkyl;

R 2 is hydrogen;

R 3 is H or lower alkyl;

R 4 is H or lower alkyl;

R 5 is H or lower alkyl;

R 6 is H or lower alkyl;

R 7 is H or lower alkyl;

Ar is

 optionally bears one or more halo, alkyl, alkoxy, or acyl substituents; and

R 19 is H, halo, lower alkyl, lower alkenyl, carbamoyl, cycloalkyl, alkoxy, phenyl, substituted phenyl, amino, or heterocyclyl.

2. The compound of claim 1 , according to Formula Il:

3. The compound of claim 1 , according to Formula Im:

4. A composition comprising a compound of claim 1 , and optionally, a pharmaceutically acceptable excipient.

5. A composition of matter comprising a compound of claim 1 , wherein the compound is present in a dosage form.

6. The compound of claim 1 according to any of the following structures:

7. The compound of claim 1 according to any of the following structures:

Assignments (5)
RELEASE OF SECURITY INTEREST Recorded Apr 17, 2020
From: TC LENDING, LLC, AS COLLATERAL AGENT
To: NEKTAR THERAPEUTICS
Reel/Frame 053180/0009 →
RELEASE OF SECURITY INTEREST RECORDED AT REEL 28571, FRAME 0141 Recorded Oct 14, 2015
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: NEKTAR THERAPEUTICS
Reel/Frame 036866/0700 →
GRANT OF SECURITY INTEREST IN UNITED STATES PATENTS Recorded Oct 6, 2015
From: NEKTAR THERAPEUTICS
To: TC LENDING, LLC, AS COLLATERAL AGENT
Reel/Frame 036796/0562 →
GRANT OF SECURITY INTEREST Recorded Jul 17, 2012
From: NEKTAR THERAPEUTICS
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 028571/0141 →
MERGER Recorded Mar 26, 2010
From: NEKTAR THERAPEUTICS AL, CORPORATION
To: NEKTAR THERAPEUTICS
Reel/Frame 024148/0770 →