Hydrophobically tagged small molecules as inducers of protein degradation

Patent metadata

Field	Value
Publication number	US-9758522-B2
Application number	US-201314436657-A
Country	US
Kind code	B2
Filing date	Oct 18, 2013
Priority date	Oct 19, 2012
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

Provided are bifunctional small molecules of Formula (I): or pharmaceutically acceptable salts thereof, wherein M represents a small organic molecule which binds, covalently or non-covalently, a kinase, such as Her3 protein kinase; L 1 represents a linker; and R H represents a hydrophobic group. An example of a compound of Formula (I) is a compound of Formula (II): Also provided are pharmaceutical compositions comprising a compound of Formula (I) or (II) and methods of using such compounds for treating proliferative diseases.

First claim

What is claimed is:

1. A compound of Formula (II):

or a pharmaceutically acceptable salt thereof;
wherein:
Ring A is substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl;
each occurrence of R B is independently hydrogen, acyl, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, or a nitrogen protecting group, or two R B groups are joined to form an substituted or unsubstituted heterocyclic or substituted or unsubstituted heteroaryl ring;
each instance of R C is independently hydrogen, halogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, —OR C1 , —N(R C1 ) 2 , —SR C1 , —C(═O)R C1 , —C(═O)OR C1 , —C(═O)SR C1 , —C(═O)N(R C1 ) 2 , —NR C1 C(═O)R C1 , —NR C1 C(═O)OR C1 , —NR C1 C(═O)SR C1 , or —NR C1 C(═O)N(R C1 ) 2 , wherein each occurrence of R C1 is independently hydrogen, acyl, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, a nitrogen protecting group when attached to a nitrogen atom, an oxygen protecting group when attached to an oxygen atom, or a sulfur protecting group when attached to a sulfur atom, or two R C1 groups are joined to form a substituted or unsubstituted heterocyclic or substituted or unsubstituted heteroaryl ring;
a is 0, 1, 2, 3, or 4;
b is 1;
L 1 represents a linker of 4 to 20, inclusive, consecutive, covalently bonded atoms in length, selected from the group consisting of substituted and unsubstituted alkylene; substituted and unsubstituted alkenylene; substituted and unsubstituted alkynylene; substituted and unsubstituted heteroalkylene; substituted and unsubstituted heteroalkenylene; substituted and unsubstituted heteroalkynylene; substituted and unsubstituted heterocyclylene; substituted and unsubstituted carbocyclylene; substituted and unsubstituted arylene; substituted and unsubstituted heteroarylene; and combinations thereof;
L 2 represents a bond or a linker selected from the group consisting of substituted and unsubstituted alkylene; substituted and unsubstituted alkenylene; substituted and unsubstituted alkynylene; substituted and unsubstituted heteroalkylene; substituted and unsubstituted heteroalkenylene; substituted and unsubstituted heteroalkynylene; substituted and unsubstituted heterocyclylene; substituted and unsubstituted carbocyclylene; substituted and unsubstituted arylene; substituted and unsubstituted heteroarylene; and combinations thereof;
R H represents a hydrophobic group selected from the group consisting of substituted and unsubstituted aryl, substituted and unsubstituted heteroaryl, substituted and unsubstituted carbocyclyl, substituted and unsubstituted heterocyclyl, substituted and unsubstituted aralkyl, substituted and unsubstituted heteroarylalkyl, substituted and unsubstituted carbocycylalkyl, and substituted and unsubstituted heterocyclylalkyl;
wherein the hydrophobic group refers to a group comprising zero hydrogen bond donors; and
R D is of formula:

wherein:
R D1 is hydrogen, halogen, acyl, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, —CN, —NO 2 , —OR D1a , —N(R D1a ) 2 , —SR D1a , —CH 2 OR D1a , —CH 2 N(R D1a ) 2 , —CH 2 SR D1a , —C(═O)R D1a , —C(═O)OR D1a , —C(═O)SR D1a , —C(═O)N(R D1a ) 2 , —C(═S)R D1a , —C(═S)OR D1a , —C(═S)SR D1a , —C(═S)N(R D1a ) 2 , —C(═NR D1a )R D1a , —C(═NR D1a )OR D1a , —C(═NR D1a )SR D1a , or —C(═NR D1a )N(R D1a ) 2 , wherein each occurrence of R D1a is independently hydrogen, acyl, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl, or two R D1a groups are joined to form an substituted or unsubstituted heterocyclic ring;
R D2 is hydrogen, halogen, acyl, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, —CN, —NO 2 , —OR D2a , —N(R D2a ) 2 , —SR D2a , —CH 2 OR D2a , —CH 2 N(R D2a ) 2 , —CH 2 SR D2a , —C(═O)R D2a , —C(═O)OR D2a , —C(═O)SR D2a , —C(═O)N(R D2a ) 2 , —C(═S)R D2a , —C(═S)OR D2a , —C(═S)SR D2a , —C(═S)N(R D2a ) 2 , —C(═NR D2a )R D2a , —C(═NR D2a )OR D2a , —C(═NR D2a )SR D2a , or —C(═NR D2a )N(R D2a ) 2 , wherein each occurrence of R D2a is independently hydrogen, acyl, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl, or two R D2a groups are joined to form an substituted or unsubstituted heterocyclic ring;
R D3 is hydrogen, halogen, acyl, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, —OR D3a , —N(R D3a ) 2 , —SR D3a , —CH 2 OR D3a , —CH 2 N(R D3a ) 2 , —CH 2 SR D3a , —C(═O)R D3a , —C(═O)OR D3a , —C(═O)SR D3a , —C(═O)N(R D3a ) 2 , —C(═S)R D3a , —C(═S)OR D3a , —C(═S)SR D3a , —C(═S)N(R D3a ) 2 , —C(═NR D3a )R D3a , —C(═NR D3a )OR D3a , —C(═NR D3a )SR D3a , or —C(═NR D3a )N(R D3a ) 2 wherein eachoccurrence of R D3a is independently hydrogen, acyl, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl, or two R D3a groups are joined to form an substituted or unsubstituted heterocyclic ring;
optionally R D1 and R D3 , or R D2 and R D3 , or R D1 and R D2 are joined to form an substituted or unsubstituted carbocyclic or substituted or unsubstituted heterocyclic ring;
R D4 is a leaving group selected from the group consisting of —Br, —Cl, —I, and —OS(═O) w R D4a , wherein w is 1 or 2, and R D4a is substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted carbocyclyl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl;
X 1 is a bond or NR D5 , wherein R D5 is hydrogen, C 1-6 alkyl, or a nitrogen protecting group;
each instance of Y is independently

Assignees

• Dana Farber Cancer Inst Inc
• Univ Yale

Inventors

• Gray Nathanael
• Xie Ting
• Lim Sang Min
• Janne Pasi A
• Crews Craig M

Classifications

• C07D487/04 Primary

  Ortho-condensed systems · CPC title

• A61K31/519

  ortho- or peri-condensed with heterocyclic rings · CPC title

• A61P35/00

  Antineoplastic agents · CPC title