Polyenolic zinc-binding agents (pezbins) actively promote inactivation of cancer stem cells and potentiate cytotoxic anti-tumor drug substances

Patent metadata

Field	Value
Publication number	US-9220695-B2
Application number	US-201314408748-A
Country	US
Kind code	B2
Filing date	Jun 28, 2013
Priority date	Jun 29, 2012
Publication date	Dec 29, 2015
Grant date	Dec 29, 2015

Abstract

The present invention provides a method of inhibiting the growth of or promoting differentiation and destruction of cancer stem cells (CSCs) comprising contacting the cancer stem cells with a compound having the structure:

or a pharmaceutically acceptable salt thereof.

First claim

What is claimed is:

1. A method of inhibiting the growth of or promoting differentiation of cancer stem cells (CSCs) comprising contacting the cancer stem cells with a compound having the structure:

wherein
bond α and β are each, independently, present or absent;
X is CR 5 or N; Y is CR 10 or N;
R 1 is H, CF 3 , halogen, —NO 2 , —OCF 3 ,  OR 12 , —NHCOR 12 , —CONR 12 R 13 , —CSNR 12 R 13 , —C(═NH)NR 12 R 13 —SR 12 , —SO 2 R 13 , —COR 14 , —CSR 14 , —C(═NR 12 )R 14 , —C(═NR 12 )NR 13 R 14 , —SOR 12 , —SONR 12 R 13 , —SO 2 NR 12 R 13 , —P(O)R 12 , —PH(═O)OR 12 —P(═O)(OR 12 )(OR 13 ), or —P(OR 12 )(OR 13 ),
wherein R 12 and R 13 are each, independently, H, C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteroaryl, or heterocyclyl;
R 14 is C 2-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, heteroaryl, heterocyclyl, methoxy, —OR 15 , —NR 16 R 17 , or

 wherein R 15 is H, C 3-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl;
R 16 and R 17 are each, independently, H, C 2-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteroaryl, or heterocyclyl;
R 18 , R 19 , R 21 , and R 22 are each independently H, halogen, —NO 2 , —CN, —NR 23 R 24 , —SR 23 , —SO 2 R 23 , —CO 2 R 23 , —OR 25 , CF 3 , —SOR 23 , —POR 23 , —C(═S)R 23 , —C(═NH)R 23 , —C(═N)R 23 , —P(═O)(OR 23 )(OR 24 ), —P(OR 23 )(OR 24 ), —C(═S)R 23 , C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteroaryl, or heterocyclyl;
wherein R 23 , R 24 , and R 25 are each, independently, H, C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteroaryl, or heterocyclyl;

R 20 is halogen, —NO 2 , —CN, —NR 26 R 27 , CF 3 , C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteroaryl, or heterocyclyl;
wherein R 26 and R 27 are each, independently, H, C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteroaryl, or heterocyclyl;

R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , and R 11 are each independently, H, halogen, —NO 2 , —CN, —NR 28 R 29 , —NHR 28 R 29 + , —SR 28 , —SO 2 R 28 , —OR 28 , —CO 2 R 28 , CF 3 , C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteroaryl, or heterocyclyl;
wherein R 28 and R 29 are each, H, CF 3 , C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, or —C(═O)-heterocyclyl; and

wherein when R 1 is H, then R 3 , R 4 , R 5 , R 8 , R 9 , or R 10 , is halogen, —NO 2 , —CN, —NR 28 R 29 , —NHR 28 R 29 + , —SR 28 , —SO 2 R 28 , —CO 2 R 28 , CF 3 , C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteroaryl, or heterocyclyl;
wherein R 28 and R 29 are each, H, CF 3 , C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, or —C(═O)-heterocyclyl; and

wherein each occurrence of alkyl, alkenyl, or alkynyl is branched or unbranched, unsubstituted or substituted;
or a pharmaceutically acceptable salt thereof.

2. A method of down-regulating cancer stem cell-relevant transcription factors comprising contacting the cancer stem cell with a compound having the structure:

wherein
bond α and β are each, independently, present or absent;
X is CR 5 or N; Y is CR 10 or N;
R 1 is H, CF 3 , halogen, —NO 2 , —OCF 3 , —OR 12 , —NHCOR 12 , —CONR 12 R 13 , —CSNR 12 R 13 , —C(═NH)NR 12 R 13 —SR 12 , —SO 2 R 13 , —COR 14 , —CSR 14 , —C(═NR 12 )R 14 , —C(═NR 12 )NR 13 R 14 , —SOR 12 , —SONR 12 R 13 , —SO 2 NR 12 R 13 , —P(O)R 12 , —PH(═O)OR 12 —P(═O)(OR 12 )(OR 13 ), or —P(OR 12 )(OR 13 ),
wherein R 12 and R 13 are each, independently, H, C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteroaryl, or heterocyclyl;
R 14 is C 2-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, heteroaryl, heterocyclyl, methoxy, —OR 15 , —NR 16 R 17 , or

 wherein R 15 is H, C 3-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl;
R 16 and R 17 are each, independently, H, C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteroaryl, or heterocyclyl;
R 18 , R 19 , R 21 , and R 22 are each independently H, halogen, —NO 2 , —CN, —NR 23 R 24 , —SR 23 , —SO 2 R 23 , —CO 2 R 23 , —OR 25 , CF 3 , —SOR 23 , —POR 23 , —C(═S)R 23 , —C(═NH)R 23 , —C(═N)R 23 , —P(═O)(OR 23 )(OR 24 ), —P(OR 23 )(OR 24 ), —C(═S)R 23 , C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteroaryl, or heterocyclyl;
wherein R 23 , R 24 , and R 25 are each, independently, H, C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteroaryl, or heterocyclyl;

R 20 is halogen, —NO 2 , —CN, —NR 26 R 27 , CF 3 , C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteroaryl, or heterocyclyl;
wherein R 26 and R 27 are each, independently, H, C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteroaryl, or heterocyclyl;

R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , and R 11 are each independently, H, halogen, —NO 2 , —CN, —NR 28 R 29 , —NHR 28 R 29 + , —SR 28 , —SO 2 R 28 , —OR 28 , —CO 2 R 28 , CF 3 , C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteroaryl, or heterocyclyl;
wherein R 28 and R 29 are each, H, CF 3 , C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, or —C(═O)-heterocyclyl; and

wherein when R 1 is H, then R 3 , R 4 , R 5 , R 8 , R 9 , or R 10 , is halogen, —NO 2 , —CN, —NR 28 R 29 , —NHR 28 R 29 + , —SR 28 , —SO 2 R 28 , —CO 2 R 28 , CF 3 , C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, aryl, heteroaryl, or heterocyclyl;
wherein R 28 and R 29 are each, H, CF 3 , C 1-10 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, or —C(═O)-heterocyclyl; and

wherein each occurrence of alkyl, alkenyl, or alkynyl is branched or unbranched, unsubstituted or substituted;
or a pharmaceutically acceptable salt thereof.

3. The method of claim 1 , further comprising contacting the cancer stem cell with a chemotherapeutic agent.

4. The method of claim 2 , wherein the cancer stem cell-relevant transcription factor is CDX2, DLX2, EGR3, FOXP3, GLI2, HOXA2, HOXA7, HOXB3, HOXB8, HOXC10, HOXC9, HOXC6, HOXC4, HOXC5, IRX4, JUN, KLF2, NFATC1, NR2F2, PITX3, POU5F1, RUNX1, WT1, c-MYC, or SOX-2.

5. The method of claim 2 , wherein the cancer stem cell-relevant transcription factor is each of CDX2, DLX2, EGR3, FOXP3, GLI2, HOXA2, HOXA7, HOXB3, HOXB8, HOXC10, HOXC9, HOXC6, HOXC4, HOXC5, IRX4, JUN, KLF2, NFATC1, NR2F2, PITX3, POU5F1, RUNX1, WT1, c-MYC, and SOX-2.

6. The method of claim 2 , wherein the cancer stem cell-relevant transcription factors are at least five (5) transcription factors selected from the group consisting of CDX2, DLX2, EGR3, FOXP3, GLI2, HOXA2, HOXA7, HOXB3, HOXB8, HOXC10, HOXC9, HOXC6, HOXC4, HOXC5, IRX4, JUN, KLF2, NFATC1, NR2F2, PITX3, POU5F1, RUNX1, WT1, c-MYC, and SOX-2.

7. A method of inhibiting the growth of a tumor comprising cancer stem cells (CSCs) by contacting the tumor with a compound having the structure:

wherein
bond α and β are each, independently, present or absent;
X is CR 5 or N; Y is CR 10 or N;
R 1 is H, CF 3 , halogen, —NO 2 , —OCF 3 , —OR 12 , —NHCOR 12 , —CONR 12 R 13 , —CSNR 12 R 13 , —C(═NH)NR 12 R 13 —SR 12 , —SO 2 R 13 , —COR 14 , —CSR 14 , —C(═NR 12 )R 14 , —C(═NR 12 )NR 13 R 14 , —SOR 12 , —SONR 12 R 13 , —SO 2 NR 12 R 13 , —P(O)R 12 , —PH(═O)OR 12 —P(═O)(OR 12 )(OR 13 ), or —P(OR 12 )(OR 13 ),

Assignees

• Golub Lorne M
• Johnson Francis
• Botchkina Galina I
• Ojima Iwao
• Univ New York State Res Found

Inventors

• Golub Lorne M
• Johnson Francis
• Botchkina Galina I
• Ojima Iwao

Classifications

• A61K31/136

  having the amino group directly attached to the aromatic ring, e.g. benzeneamine · CPC title

• A61K31/337

  having four-membered rings, e.g. taxol · CPC title

• A61K31/444

  containing a six-membered ring with nitrogen as a ring heteroatom, e.g. amrinone · CPC title

• A61K31/167 Primary

  having the nitrogen of a carboxamide group directly attached to the aromatic ring, e.g. lidocaine, paracetamol · CPC title

• A61K45/06

  Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca · CPC title