IP Library Granted Patent US 9,907,855
Granted Patent B2
US 9,907,855 · App. 15/445,381 · Granted Mar 6, 2018

N-optionally substituted aryl-2-oligomer-3-alkoxypropionamides

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Quick Facts
Patent No.
US 9,907,855
App. No.
15/445,381
Granted
Mar 6, 2018
Kind
B2
Abstract

The invention relates to (among other things) N-optionally substituted aryl-2-oligomer-3-alkoxypropionamides and compositions comprising the same. A compound of the invention, when administered by any of a number of administration routes, exhibits one or more advantages over corresponding compounds lacking the oligomer.

Claims (19)

1. A compound of Formula I-C:

wherein:

Ar is benzyl, phenyl, naphthyl, biphenyl, or phenanthrenyl;

R 1 is methyl, ethyl, n-butyl, i-butyl, or t-butyl;

X 1 is a single bond, —O—, —S—, —NH—, or —NHC(O)—; and

POLY 1 is a poly(ethylene oxide) oligomer having from 1 to 15 monomers;

and pharmaceutically acceptable salts thereof.

2. The compound of claim 1 , according to Formula I-C(R):

and pharmaceutically acceptable salts thereof.

3. The compound of claim 1 , according to Formula I-C(S):

and pharmaceutically acceptable salts thereof.

4. The compound of claim 1 , wherein POLY 1 is end-capped with hydroxy, methoxy, ethoxy, or benzyloxy.

5. The compound of claim 1 , wherein POLY 1 is end-capped with methoxy.

6. The compound of claim 1 , wherein X 1 is —NHC(O)—.

7. The compound of claim 1 , wherein Ar is phenyl.

8. The compound of claim 1 , wherein R 1 is methyl.

9. The compound of claim 1 , according to formula:

wherein n is 1, 2, 3, 4, 5, 6, 7, 8, or 9; and pharmaceutically acceptable salts thereof.

10. A composition comprising a compound of claim 1 and a pharmaceutically acceptable excipient.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Apr 17, 2020
From: TC LENDING, LLC, AS COLLATERAL AGENT
To: NEKTAR THERAPEUTICS
Reel/Frame 053180/0009 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 4, 2017
From: SILIQI, RISTO; BIANCHI, THOMAS; STERNFELS, RAPHAEL; LAPASSET, JEAN-MARIE; LE GOFF, FRANÇOIS
To: CGG SERVICES SAS
Reel/Frame 041845/0267 →
SECURITY INTEREST Recorded Mar 31, 2017
From: NEKTAR THERAPEUTICS
To: TC LENDING, LLC, AS COLLATERAL AGENT
Reel/Frame 041814/0495 →