IP Library Granted Patent US 8,530,492
Granted Patent B2
US 8,530,492 · App. 13/264,519 · Granted Sep 10, 2013

Oligomer-protein tyrosine kinase inhibitor conjugates

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Quick Facts
Patent No.
US 8,530,492
App. No.
13/264,519
Granted
Sep 10, 2013
Kind
B2
Abstract

The invention relates to (among other things) oligomer-PTK inhibitor conjugates and related compounds. A compound of the invention, when administered by any of a number of administration routes, exhibits advantages over PTK inhibitor compounds lacking a water-soluble, non-peptidic oligomer.

Claims (18)

1. A compound selected from:

and pharmaceutically acceptable salts thereof, wherein

X is a spacer moiety selected from a covalent bond, —C(O), —C(O)O—, —CH 2 C(O)O—, —CH 2 —OC(O)—, —C(O)O—CH 2 —, —C(O)—NH, —CH 2 —, —CH 2 —CH 2 —, —CH 2 —CH 2 —CH 2 —, —CH 2 —CH 2 —CH 2 —CH 2 , —CH 2 —O—, —CH 2 —O—CH 2 —, —CH 2 —CH 2 —O—, —CH 2 —O—CH 2 —CH 2 —, —CH 2 —CH 2 —O—CH 2 —, —CH 2 —CH 2 —CH 2 —O—, —CH 2 —O—CH 2 —CH 2 —CH 2 —, —CH 2 —CH 2 —O—CH 2 —CH 2 —, —CH 2 —CH 2 —CH 2 —O—CH 2 —, —CH 2 —CH 2 —CH 2 —CH 2 —O—, —C(O)—NH—CH 2 —, —C(O)—NH—CH 2 —CH 2 , —CH 2 —C(O)—NH—CH 2 —, —CH 2 —CH 2 —C(O)—NH—, —C(O)—NH—CH 2 —CH 2 —CH 2 —, —CH 2 —C(O)—NH—CH 2 —CH 2 —, —CH 2 —CH 2 —C(O)—NH—CH 2 —, —CH 2 —CH 2 —CH 2 —C(O)—NH—, —C(O)—NH—CH 2 —CH 2 —CH 2 —CH 2 —, —CH 2 —C(O)—NH—CH 2 —CH 2 —CH 2 —, —CH 2 —CH 2 —C(O)—NH—CH 2 —CH 2 —, —CH 2 —CH 2 —CH 2 —C(O)—NH—CH 2 —, —CH 2 —CH 2 —CH 2 —C(O)—NH—CH 2 —CH 2 —, —CH 2 —CH 2 —CH 2 —CH 2 —C(O)—NH—, —CH 2 —NH—C(O)—CH 2 —, —CH 2 —CH 2 —NH—C(O)—CH 2 —, —CH 2 —NH—C(O)—CH 2 —CH 2 —, —CH 2 —CH 2 —, —C(O)—NH—CH 2 —, —C(O)—NH—CH 2 —CH 2 , —CH 2 —NH—CH 2 , —CH 2 —CH 2 —NH—CH 2 —, —C(O)—CH 2 —, —C(O)—CH 2 —CH 2 —, —CH 2 —C(O)—CH 2 —, —CH 2 —CH 2 —C(O)—CH 2 —, —CH 2 —CH 2 —C(O)—CH 2 —CH 2 —, —CH 2 —CH 2 —C(O)—, —CH 2 —CH 2 —CH 2 —C(O)—NH—CH 2 —CH 2 —NH—, —CH 2 —CH 2 —CH 2 —C(O)—NH—CH 2 —CH 2 —NH—C(O)—, —CH 2 —CH 2 —CH 2 —C(O)—NH—CH 2 —CH 2 —NH—C(O)—CH 2 —, a bivalent cycloalkyl group, —N(R 6 )—, R 6 is H or an organic radical selected from the group consisting of alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, aryl and substituted aryl; and

POLY is a poly(alkylene oxide) oligomer.

2. The compound of claim 1 , wherein the poly(alkylene oxide) oligomer is a poly(ethylene oxide) oligomer.

3. The compound of claim 2 , wherein the poly(ethylene oxide) oligomer has from about 1 to about 30 monomers.

4. The compound of claim 3 , wherein the poly(ethylene oxide) oligomer has from about 1 to about 10 monomers.

5. The compound of claim 2 , wherein the poly(alkylene oxide) includes an alkoxy or hydroxy end-capping moiety.

6. The compound of claim 1 , wherein X is selected from a covalent bond, —C(O), —C(O)O—, —CH 2 C(O)O—, —CH 2 —OC(O)—, —C(O)O—CH 2 —, —C(O)—NH, —CH 2 —, —CH 2 —CH 2 —, —CH 2 —CH 2 —CH 2 —, —CH 2 —CH 2 —CH 2 —CH 2 , —CH 2 —O—, —CH 2 —O—CH 2 —, —CH 2 —CH 2 —O—, —CH 2 —O—CH 2 —CH 2 —, —CH 2 —CH 2 —CH 2 —O—, —C(O)—NH—CH 2 —, —C(O)—NH—CH 2 —CH 2 , —CH 2 —CH 2 —C(O)—NH—, —C(O)—NH—CH 2 —CH 2 —CH 2 —, —C(O)—NH—CH 2 —CH 2 —CH 2 —CH 2 —, CH 2 —CH 2 —CH 2 —CH 2 —C(O)—NH—, —C(O)—NH—CH 2 —CH 2 , —C(O)—CH 2 —, —C(O)—CH 2 —CH 2 —, and —CH 2 —CH 2 —C(O)—.

7. The compound of claim 1 , wherein the X is selected from a covalent bond, —C(O), —C(O)O—, —C(O)—NH—, —CH 2 —CH 2 —, —CH 2 —CH 2 —CH 2 —, and —CH 2 —CH 2 —CH 2 —CH 2 .

8. The compound of claim 1 , wherein X is a covalent bond.

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

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

11. The compound of claim 1 , wherein the compound is selected from

wherein n is an integer from 1 to 30.

12. The compound of claim 11 , wherein n is an integer from 2 to 10.

13. A composition comprising a compound of claim 11 , and optionally, a pharmaceutically acceptable excipient.

14. A composition of matter comprising a compound of claim 11 , wherein the compound is present in a dosage form.

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 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 13, 2012
From: RIGGS-SAUTHIER, JENNIFER; ZHANG, WEN
To: NEKTAR THERAPEUTICS
Reel/Frame 027529/0268 →