Substituted phenazines as antimicrobial agents

Patent metadata

Field	Value
Publication number	US-9856225-B2
Application number	US-201415107531-A
Country	US
Kind code	B2
Filing date	Dec 23, 2014
Priority date	Dec 24, 2013
Publication date	Jan 2, 2018
Grant date	Jan 2, 2018

Abstract

The present invention provides novel phenazine derivatives, such as compounds of Formula (I) and (II), and pharmaceutically acceptable salts thereof. The compounds of the invention are expected to be antimicrobial agents and may act by a microbial warfare strategy (e.g., a reactive oxygen species (ROS)-based competition strategy). The present invention also provides pharmaceutical compositions, kits, uses, and methods that involve the compounds of the invention and may be useful in preventing or treating a microbial infection (e.g., a bacterial infection) in a subject, inhibiting the growth and/or reproduction of a microorganism (e.g., a bacterium), killing a microorganism (e.g., a bacterium), inhibiting the formation and/or growth of a biofilm, or reducing or clearing a biofilm.

First claim

What is claimed is:

1. A compound of Formula (I):

or a pharmaceutically acceptable salt, tautomer, or stereoisomer thereof, wherein:
each instance of X is independently halogen;
L is —OC(═O)O—, —OC(═O)—, —C(═O)O—, —NR L C(═O)—, —C(═O)NR L —, —OC(═O)NR L —, —NR L C(═O)O—, —NR L C(═O)NR L —, —OS(═O) 2 —, —S(═O) 2 O—, —NR L S(═O) 2 —, —S(═O) 2 NR L —, or —NR L S(═O) 2 NR L —;
each instance of R L is independently hydrogen, substituted or unsubstituted alkyl, or a nitrogen protecting group;
R A is hydrogen, 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, or an oxygen protecting group when attached to an oxygen atom;
R B is hydrogen, halogen, substituted or unsubstituted 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 B1 , —N(R B1 ) 2 , —SR B1 , —CN, —SCN, —C(═NR B1 ) R B1 , —C(═NR B1 )OR B1 , —C(═NR B1 )N(R B1 ) 2 , —C(═O)R B1 , —C(═O)OR B1 , —C(═O)N(R B1 ) 2 , —NO 2 , —NR B1 C(═O)R B1 , —NR B1 C(═O)OR B1 , —NR B1 C(═O)N(R B1 ) 2 , —OC(═O)R B1 , —OC(═O)OR B1 , or —OC(═O)N(R B1 ) 2 ;
each instance of R B1 is independently hydrogen, substituted or unsubstituted 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 instances of R B1 are joined to form a substituted or unsubstituted heterocyclic ring;
each instance of R C is independently hydrogen, halogen, substituted or unsubstituted 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 C1 , —N(R C1 ) 2 , —SR C1 , —CN, —SCN, —C(═NR C1 )R C1 , —C(═NR C1 )OR C1 , —C(═NR C1 )N(R C1 ) 2 , —C(═O)R C1 , —C(═O)OR C1 , —C(═O)N(R C1 ) 2 , —NO 2 , —NR C1 C(═O)R C1 , —NR C1 C(═O)OR C1 , —NR C1 C(═O)N(R C1 ) 2 , —OC(═O)R C1 , —OC(═O)OR C1 , or —OC(═O)N(R C1 ) 2 , or two instances of R C are joined to form a substituted or unsubstituted carbocyclic, substituted or unsubstituted heterocyclic, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl ring;
each instance of R C1 is independently hydrogen, substituted or unsubstituted 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 instances of R C1 are joined to form a substituted or unsubstituted heterocyclic ring;
n is 0, 1, 2, 3, or 4;
when any one of the acyl, alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, heterocyclic ring, aryl, aryl ring, heteroaryl, and heteroaryl ring referred to above is substituted with one or more substituents at a carbon atom, the one or more substituents at the carbon atom are independently selected from Group (i);
when any one of the heterocyclyl, heterocyclic ring, heteroaryl, and heteroaryl ring referred to above is substituted with one or more substituents at a nitrogen atom, the one or more substituents at the nitrogen atom are independently selected from Group (ii);
Group (i) consists of halogen, —CN, —NO 2 , —N 3 , —SO 2 H, —SO 3 H, —OH, —OR aa , —ON(R bb ) 2 , —N(R bb ) 2 , —N(R bb ) 3 + X − , —N(OR cc )R bb , —SH, —SR aa , —SSR cc , —C(═O)R aa , —CO 2 H, —CHO, —C(OR cc ) 2 , —CO 2 R aa , —OC(═O)R aa , —OCO 2 R aa , —C(═O)N(R bb ) 2 , —OC(═O)N(R bb ) 2 , —NR bb C(═O)R aa , —NR bb CO 2 R aa , —NR bb C(═O)N(R bb ) 2 , —C(═NR bb )R aa , —C(═NR bb )OR aa , —OC(═NR bb )R aa , —OC(═NR bb )OR aa , —C(═NR bb )N(R bb ) 2 , —OC(═NR bb )N(R bb ) 2 , —NR bb C(═NR bb )N(R bb ) 2 , —C(═O)NR bb SO 2 R aa , —NR bb SO 2 R aa , —SO 2 N(R bb ) 2 , —SO 2 R aa , —SO 2 OR aa , —OSO 2 R aa , —S(═O)R aa , —OS(═O)R aa , —Si(R aa ) 3 , —OSi(R aa ) 3 —C(═O)SR aa , —SC(═O)SR aa , —OC(═O)SR aa , —SC(═O)OR aa , —SC(═O)R aa , —P(═O)(R aa ) 2 , —OP(═O)(R aa ) 2 , —OP(═O)(OR cc ) 2 , —NR bb P(═O)(OR cc ) 2 , —P(R cc ) 2 , —OP(R cc ) 2 , —B(R aa ) 2 ,—B(OR cc ) 2 , —BR aa (OR cc ), C 1-10 alkyl, C 1-10 perhaloalkyl, C 2-10 alkenyl, C 2-10 alkynyl, C 3-10 carbocyclyl, 3-14 membered heterocyclyl, C 6-14 aryl, 5-14 membered heteroaryl, ═O, ═S, ═NN(R bb ) 2 , ═NNR bb C(═O)R aa , ═NNR bb C(═O)OR aa , ═NNR bb S(═O) 2 R aa , ═NR bb , and ═NOR cc , wherein each of the alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl of Group (i) is independently substituted with 0, 1, 2, 3, 4, or 5 instances of R dd ;
Group (ii) consists of hydrogen, —OH, —OR aa , —N(R cc ) 2 , —CN, —C(═O)R aa , —C(═O)N(R cc ) 2 , —CO 2 R aa , —SO 2 R aa , —C(═NR bb )R aa , —C(═NR cc )OR aa , —C(═NR cc )N(R cc ) 2 , —SO 2 N(R cc ) 2 , —SO 2 R cc , —SO 2 OR cc , —SOR aa , —C(═O)SR cc , —P(═O)(R aa ) 2 , C 1-10 alkyl, C 1-10 perhaloalkyl, C 2-10 alkenyl, C 2-10 alkynyl, C 3-10 carbocyclyl, 3-14 membered heterocyclyl, C 6-14 aryl, 5-14 membered heteroaryl, and nitrogen protecting groups, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl of Group (ii) is independently substituted with 0, 1, 2, 3, 4, or 5 R dd groups;
each instance of R aa is, independently, selected from C 1-10 alkyl, C 1-10 perhaloalkyl, C 2-10 alkenyl, C 2-10 alkynyl, C 3-10 carbocyclyl, 3-14 membered heterocyclyl, C 6-14 aryl, and 5-14 membered heteroaryl, or two R aa groups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or5 R dd groups;
each instance of R bb is, independently, selected from hydrogen, —OH, —OR aa , —N(R cc ) 2 , —CN, —C(═O)R aa , —C(═O)N(R cc ) 2 , —CO 2 R aa , —SO 2 R aa , —C(═NR cc )OR aa , —C(═NR cc )N(R cc ) 2 , —SO 2 N(R cc ) 2 , —SO 2 R cc , —SO 2 OR cc , —SOR aa , —C(═O)SR cc , —P(═O)(R aa ) 2 , C 1-10 alkyl, C 1-10 perhaloalkyl, C 2-10 alkenyl, C 2-10 alkynyl, C 3-10 carbocyclyl, 3-14 membered heterocyclyl, C 6-14 aryl, and 5-14 membered heteroaryl, or two R bb groups are joined to form a3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is independently substituted with 0, 1, 2, 3, 4, or 5 R dd groups;
each instance of R cc is, independently, selected from hydrogen, C 1-10 alkyl, C 1-10 perhaloalkyl, C 2-10 alkenyl, C 2-10 alkynyl, C 3-10 carbocyclyl, 3-14 membered heterocyclyl, C 6-14 aryl, and 5-14 membered heteroaryl, or two R cc groups are joined to form a 3-14 membered heterocyclyl or 5-14 membered heteroaryl ring, wherein each alkyl, alkenyl, alkynyl, carbocyclyl, heterocyclyl, aryl, and heteroaryl is inde

Assignees

• Univ Florida

Inventors

• Huigens Iii Robert William
• Jin Shouguang

Classifications

• A61P31/04

  Antibacterial agents · CPC title

• A61P43/00

  Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00 · CPC title

• A61P31/00

  Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics · CPC title

• C07D241/46 Primary

  Phenazines · CPC title

• C07D409/12

  linked by a chain containing hetero atoms as chain links · CPC title