IP Library Granted Patent US 9,095,622
Granted Patent B2
US 9,095,622 · App. 14/547,633 · Granted Aug 4, 2015

Oligomer-protein tyrosine kinase inhibitor conjugates

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Quick Facts
Patent No.
US 9,095,622
App. No.
14/547,633
Granted
Aug 4, 2015
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 (14)

1. A method of treating a condition selected from the group consisting of chronic myelogenous leukemia, gastrointestinal stromal tumors, renal cell carcinoma, breast cancer, lung cancer and colorectal cancer, the method comprising administering to a patient in need thereof 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 method of claim 1 , wherein the poly(alkylene oxide) oligomer is a poly(ethylene oxide) oligomer.

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

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

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

6. The method 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 method 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 method of claim 1 , wherein X is a covalent bond.

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

wherein n is an integer from 1 to 30.

10. The method of claim 9 , wherein n is an integer from 2 to 10.

Assignments (4)
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 34378, FRAME 0972 Recorded Oct 14, 2015
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: NEKTAR THERAPEUTICS
Reel/Frame 036855/0558 →
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 →
SECURITY INTEREST Recorded Dec 4, 2014
From: NEKTAR THERAPEUTICS
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 034378/0972 →