IP Library Granted Patent US 9,771,387
Granted Patent B2
US 9,771,387 · App. 14/905,537 · Granted Sep 26, 2017

Platinum compounds having a heterocycle ligand, nanoparticles, and uses thereof

Inventors: Adam H. Brockman (Arlington, MA); Mark T. Bilodeau (Concord, MA); Benoît Moreau (Newton, MA); Edward R. Lee (Sudbury, MA)
Assignee: PLACON THERAPEUTICS
C07F15/0093A61K9/0019A61K9/5153A61K31/555A61K9/5146
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Quick Facts
Patent No.
US 9,771,387
App. No.
14/905,537
Granted
Sep 26, 2017
Kind
B2
Abstract

The present disclosure relates to novel platinum compositions having a heterocycle ligand and nanoparticles and methods using such compositions, e.g. for treating cancer.

Claims (22)

1. A compound of Formula I,

wherein:

X is a halide, carboxylate, carbonate, carbamate, sulfonate, sulfate, or phosphate;

L is amine or substituted amine;

Y is selected from Nitrogen, Phosphorus, Oxygen and Sulfur;

A together with Y form a heteroaromatic optionally substituted with one or more substituents each independently selected from halogen, cyano, nitro, hydroxyl, ester, ether, alkoxy, aryloxy, amino, amide, carbamate, alkyl, alkenyl, alkynyl, aryl, arylalkyl, cycloalkyl, heteroaryl, heterocyclyl, phosphono, phosphate, sulfide, sulfinyl, sulfino, sulfonyl, sulfo, and sulfonamide, wherein each of the ester, ether, alkoxy, aryloxy, amino, amide, carbamate, alkyl, alkenyl, alkynyl, aryl, arylalky, cycloalkyl, heteroaryl, heterocyclyl, phosphono, phosphate, sulfide, sulfinyl, sulfino, sulfonyl, sulfo, and sulfonamide is optionally substituted with one or more suitable substituents; and

wherein X and L form a bidentate ligand, or

A together with Y or X form a bidentate ligand; and

R 1 and R 2 are each independently H, alkyl, aryl and heteroaryl wherein each of said alkyl, aryl and heteroaryl is optionally substituted with one or more suitable substituents, or R 1 and R 2 may be joined together with the nitrogen to form a 3- to 12-membered ring wherein the 3- to 12-membered ring is optionally substituted with one or more suitable substituents;

wherein X and L form a hidentate ligand, or

A together with Y or X form a bidentate ligand.

2. The compound of claim 1 , wherein each X is independently selected from the group consisting of carbamate and carboxylate.

3. The compound of claim 1 , wherein X is —O(C═O)R a or is —O(C═O)—N—(R a )(R b ); wherein R a and R b are hydrogen, alkyl, aryl, arylalkyl, or cycloalkyl, or cycloalkyl, wherein each of the alkyl, aryl, arylalkyl, and cycloalkyl is optionally substituted with one or more suitable substituents.

4. The compound of claim 1 , wherein L is an amine.

5. The compound of claim 4 , wherein L is a substituted amine.

6. The compound of claim 1 , wherein Y is N.

7. The compound of claim 1 , wherein the heteroaromatic is selected from a monocyclic heteroaromatic, a bicyclic heteroaromatic, or a tricyclic heteroaromatic.

8. The compound of claim 1 having Formula II:

Wherein R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , and R 11 each is independently selected from hydrogen, halogen, cyan, nitro, hydroxyl, ester, ether, alkoxy, aryloxy, amino, amide, carbamate, alkyl, alkenyl, alkynyl, aryl, arylalkyl, cycloalkyl, heteroaryl, heterocyclyl, phosphono, phosphate, sulfide, sulfinyl, sulfino, sulfonyl, sulfo, and sulfonamide, wherein each of the ester, ether, alkoxy, aryloxy, amino, amide, carbamate, alkyl, alkenyl, alkynyl, aryl, arylalkyl, cycloalkyl, heteroaryl, heterocyclyl, phosphono, phosphate, sulfide, sulfonyl, sulfino, sulfonyl, sulfo, and sulfonamide is optionally substituted with one or more suitable substituents; or optionally, two adjacent substituents selected from R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , and R 11 are connected to form an optionally substituted 5 or 6-membered ring; and

L, X, and Z are as defined herein.

9. A compound selected from a group consisting of:

10. A pharmaceutical composition comprising a compound from claim 1 .

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 29, 2020
From: PLACON THERAPEUTICS, INC.
To: XLINK THERAPEUTICS, INC.
Reel/Frame 054215/0859 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 28, 2016
From: BLEND THERAPEUTICS, INC.
To: PLACON THERAPEUTICS, INC.
Reel/Frame 037611/0039 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 22, 2016
From: BROCKMAN, ADAM H.; BILODEAU, MARK T.; MOREAU, BENOÎT; LEE, EDWARD R.
To: BLEND THERAPEUTICS, INC.
Reel/Frame 037560/0157 →
Continuity (2)
Provisional Application 61846708 · Jul 16, 2013
Related Publication 20160152646A1 · Jun 2, 2016