Synthesis of tetracyclines and analogues thereof

Patent metadata

Field	Value
Publication number	US-10669244-B2
Application number	US-201815887956-A
Country	US
Kind code	B2
Filing date	Feb 2, 2018
Priority date	May 21, 2004
Publication date	Jun 2, 2020
Grant date	Jun 2, 2020

Abstract

The tetracycline class of antibiotics has played a major role in the treatment of infectious diseases for the past 50 years. However, the increased use of the tetracyclines in human and veterinary medicine has led to resistance among many organisms previously susceptible to tetracycline antibiotics. The modular synthesis of tetracyclines and tetracycline analogs described provides an efficient and enantioselective route to a variety of tetracycline analogs and polycyclines previously inaccessible via earlier tetracycline syntheses and semi-synthetic methods. These analogs may be used as anti-microbial agents or anti-proliferative agents in the treatment of diseases of humans or other animals.

First claim

What is claimed is:

1. A compound of the formula:

wherein:
R 1 is hydrogen; halogen; cyclic or acyclic, substituted or unsubstituted, branched or unbranched aliphatic; cyclic or acyclic, substituted or unsubstituted, branched or unbranched heteroaliphatic; substituted or unsubstituted, branched or unbranched acyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; —OR A ; —C(═O)R A ; —CO 2 R A ; —CN; —SCN; —SR A ; —SOR A ; —SO 2 R A ; —NO 2 ; —N(R A ) 2 ; —NHC(O)R A ; or —C(R A ) 3 ; wherein each occurrence of R A is independently a hydrogen, a protecting group, an aliphatic moiety, a heteroaliphatic moiety, an acyl moiety; an aryl moiety; a heteroaryl moiety; alkoxy; aryloxy; alkylthio; arylthio; amino, alkylamino, dialkylamino, heteroaryloxy; or heteroarylthio moiety;
R 2 is hydrogen; halogen; cyclic or acyclic, substituted or unsubstituted, branched or unbranched aliphatic; cyclic or acyclic, substituted or unsubstituted, branched or unbranched heteroaliphatic; substituted or unsubstituted, branched or unbranched acyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; —OR B ; —C(═O)R B ; —CO 2 R B ; —CN; —SCN; —SR B ; —SOR B ; —SO 2 R B ; —NO 2 ; —N(R B ) 2 ; —NHC(O)R B ; or —C(R B ) 3 ; wherein each occurrence of R B is independently a hydrogen, a protecting group, an aliphatic moiety, a heteroaliphatic moiety, an acyl moiety; an aryl moiety; a heteroaryl moiety; alkoxy; aryloxy; alkylthio; arylthio; amino, alkylamino, dialkylamino, heteroaryloxy; or heteroarylthio moiety;
R 3 is hydrogen; halogen; cyclic or acyclic, substituted or unsubstituted, branched or unbranched aliphatic; cyclic or acyclic, substituted or unsubstituted, branched or unbranched heteroaliphatic; substituted or unsubstituted, branched or unbranched acyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; —OR C ; —C(═O)R C ; —CO 2 R C ; —CN; —SCN; —SR C ; —SOR C ; —SO 2 R C ; —NO 2 ; —N(R C ) 2 ; —NHC(O)R C ; or —C(R C ) 3 ; wherein each occurrence of R C is independently a hydrogen, a protecting group, an aliphatic moiety, a heteroaliphatic moiety, an acyl moiety; an aryl moiety; a heteroaryl moiety; alkoxy; aryloxy; alkylthio; arylthio; amino, alkylamino, dialkylamino, heteroaryloxy; or heteroarylthio moiety;
R 4 is hydrogen; halogen; cyclic or acyclic, substituted or unsubstituted, branched or unbranched aliphatic; cyclic or acyclic, substituted or unsubstituted, branched or unbranched heteroaliphatic; substituted or unsubstituted, branched or unbranched acyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; —OR D ; —C(═O)RD; —CO 2 R D ; —CN; —SCN; —SR D ; —SOR D ; —SO 2 R D ; —NO 2 ; —N(R D ) 2 ; —NHC(O)R D ; or —C(R D ) 3 ; wherein each occurrence of R D is independently a hydrogen, a protecting group, an aliphatic moiety, a heteroaliphatic moiety, an acyl moiety; an aryl moiety; a heteroaryl moiety; alkoxy; aryloxy; alkylthio; arylthio; amino, alkylamino, dialkylamino, heteroaryloxy; or heteroarylthio moiety;
R 5 is hydrogen; halogen; cyclic or acyclic, substituted or unsubstituted, branched or unbranched aliphatic; cyclic or acyclic, substituted or unsubstituted, branched or unbranched heteroaliphatic; substituted or unsubstituted, branched or unbranched acyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; —OR E ; —CN; —SCN; —SR E ; or —N(RE) 2 ; wherein each occurrence of RE is independently a hydrogen, a protecting group, an aliphatic moiety, a heteroaliphatic moiety, an acyl moiety; an aryl moiety; a heteroaryl moiety; alkoxy; aryloxy; alkylthio; arylthio; amino, alkylamino, dialkylamino, heteroaryloxy; or heteroarylthio moiety;
each P is independently hydrogen, substituted or unsubstituted aliphatic, substituted or unsubstituted heteroaliphatic, a protecting group, substituted or unsubstituted acyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl;

represents a substituted or unsubstituted heteroaryl, carbocyclic, or heterocyclic moiety, in which each occurrence of X is selected from the group consisting of —O—, —S—, —NR 7 —, —N—, —CR 7 —, and —C(R 7 ) 2 —; n is an integer in the range of 1 to 5, inclusive; and the bonds between adjacent X moieties are either single or double bonds, wherein

is not a substituted or unsubstituted phenyl; and
R 7 is hydrogen; halogen; cyclic or acyclic, substituted or unsubstituted, branched or unbranched aliphatic; cyclic or acyclic, substituted or unsubstituted, branched or unbranched heteroaliphatic; substituted or unsubstituted, branched or unbranched acyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; —OR G ; ═O; —C(═O)R G ; —CO 2 R G ; —CN; —SCN; —SR G ; —SOR G ; —SO 2 R G ; —NO 2 ; —N(R G ) 2 ; —NHC(O)R G ; or —C(R G ) 3 ; wherein each occurrence of R G is independently a hydrogen, a protecting group, an aliphatic moiety, a heteroaliphatic moiety, an acyl moiety; an aryl moiety; a heteroaryl moiety; alkoxy; aryloxy; alkylthio; arylthio; amino, alkylamino, dialkylamino, heteroaryloxy; or heteroarylthio moiety;
and salts, isomers, and tautomers thereof.

2. The compound of claim 1 , wherein

is selected from the group consisting of:

3. The compound of claim 1 , wherein

is selected from the group consisting of:

4. The compound of claim 1 , wherein

is selected from the group consisting of:

5. The compound of claim 1 , wherein the compound is:

wherein R is hydrogen; halogen; cyclic or acyclic, substituted or unsubstituted, branched or unbranched aliphatic; cyclic or acyclic, substituted or unsubstituted, branched or unbranched heteroaliphatic; substituted or unsubstituted, branched or unbranched acyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; —OR A ; —C(═O)R′; —CO 2 R′; —CN; —SCN; —SR′; —SOR′; —SO 2 R′; —NO 2 ; —N(R′) 2 ; —NHC(O)R′; or —C(R′) 3 ; wherein each occurrence of R′ is independently a hydrogen, a protecting group, an aliphatic moiety, a heteroaliphatic moiety, an acyl moiety; an aryl moiety; a heteroaryl moiety; alkoxy; aryloxy; alkylthio; arylthio; amino, alkylamino, dialkylamino, heteroaryloxy; or heteroarylthio moiety;
and salts thereof.

6. The compound of claim 1 selected from the group consisting of:

wherein R is hydrogen; halogen; cyclic or acyclic, substituted or unsubstituted, branched or unbranched aliphatic; cyclic or acyclic, substituted or unsubstituted, branched or unbranched heteroaliphatic; substituted or unsubstituted, branched or unbranched acyl; substituted or unsubstituted aryl; substituted or unsubstituted heteroaryl; —OR A ; —C(═O)R′; —CO 2 R′; —CN;

Assignees

• Harvard College

Inventors

• Myers Andrew G
• Charest Mark G
• Lerner Christian D
• Brubaker Jason D
• Siegel Dionicio R

Classifications

• C07D209/56

  Ring systems containing three or more rings · CPC title

• C07D221/18

  Ring systems of four or more rings · CPC title

• C07D239/70

  condensed with carbocyclic rings or ring systems · CPC title

• C07D209/58

  [b]- or [c]-condensed · CPC title

• C07D277/64

  with only hydrocarbon or substituted hydrocarbon radicals attached in position 2 · CPC title