EP3189058A1 - Procede de preparation de la marmycine a et de ses analogues ainsi que leurs utilisations - Google Patents
Procede de preparation de la marmycine a et de ses analogues ainsi que leurs utilisationsInfo
- Publication number
- EP3189058A1 EP3189058A1 EP15759724.6A EP15759724A EP3189058A1 EP 3189058 A1 EP3189058 A1 EP 3189058A1 EP 15759724 A EP15759724 A EP 15759724A EP 3189058 A1 EP3189058 A1 EP 3189058A1
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- alkyl
- formula
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- radicals
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D519/00—Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups C07D453/00 or C07D455/00
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P33/00—Antiparasitic agents
- A61P33/02—Antiprotozoals, e.g. for leishmaniasis, trichomoniasis, toxoplasmosis
- A61P33/06—Antimalarials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D309/08—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D309/14—Nitrogen atoms not forming part of a nitro radical
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
- C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
- C07D491/08—Bridged systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D498/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
- C07D498/04—Ortho-condensed systems
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D498/12—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains three hetero rings
- C07D498/14—Ortho-condensed systems
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H15/00—Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
- C07H15/20—Carbocyclic rings
- C07H15/24—Condensed ring systems having three or more rings
- C07H15/244—Anthraquinone radicals, e.g. sennosides
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/5005—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells
- G01N33/5091—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving human or animal cells for testing the pathological state of an organism
Definitions
- the present invention relates to a process for the preparation of marmycin A and its analogs, novel analogs of marmycin A, as well as their uses as biomarkers, and especially as markers of organelles, and in pharmacy, especially as a antibiotics, anticancer drugs and antimalarials.
- Marmycin A belongs to the family of angucyclines, with antibacterial and cytotoxic properties. It is characterized by a polyaromatic structure, including an anthraquinone unit fused to an aminopyranose ring via a C-glycoside bond and an N-glycoside bond on the same saccharide group. Marmycin A therefore has a unique hexacyclic structure.
- the object of the present invention is to provide a process for the chemical synthesis preparation of marmycin A and its analogs. It is particularly necessary to provide from commercial compounds a total synthesis of marmycin A and its analogues.
- the present invention also aims to provide novel analogs of marmycin A.
- the present invention aims to provide compounds useful in pharmacy, particularly in the treatment of cancers, bacterial infections and / or malaria.
- the present invention also aims to provide compounds useful as biomarkers, and in particular as markers of organelles, in particular as markers of lysosomes.
- the present invention relates to a process for the preparation of a compound of formula (II):
- R 1; R 2 , R 3 , R 4 , R 5 , R 6 , Ra, Rb, Rc, Rd and Re are independently of each other an atom or a group of atoms; n represent the number of radicals Ra, Rb, Rd and Re and are equal to 2;
- said method comprising a step B of coupling a compound of formula (III):
- radicals R 1 to R 6 are as defined for the compound of formula (II) and R 8 is a group reactive with the NH 2 group of the compound of formula (IV), in particular a triflate group,
- the present invention relates to a process for preparing a compound of formula (II):
- RR 2 , R 3 , R 4 , R 5 and R 6 are independently of each other selected from the group consisting of:
- n represent the number of radicals Ra, Rb, Rd and Re and are equal to 2;
- index n of the compounds of the invention emphasizes that the radicals Ra, Rb, Rd and Re present may be identical or different.
- the present inventors have unexpectedly discovered a novel process for the total synthesis of marmycin A and the like.
- the inventors have discovered that the coupling B of the anthraquinone nucleus with aminopyranose by the formation of a glycosidic CN bond could be carried out in the presence of copper, for example according to the Ullmann coupling principle.
- This reaction is very surprising because the usual Buchwald-Hartwig type coupling for this type of reaction (see Org Synth 2002, 78, 23 DOI: 10.15227 / orgsyn.078.0023), carried out in the presence of palladium, does not permit to obtain the glycoside bond CN in the present case.
- Coupling B according to the invention makes it possible in particular to obtain a good yield, preferably at least 30%, of compound of formula (II) according to the invention.
- the inventors have unexpectedly developed a cyclization step C to obtain a pentacyclic structure.
- This cyclization step may in particular be carried out according to two alternatives.
- a glycosidic C-C bond is formed with intramolecular cyclization. Surprisingly, this cyclization is possible in particular in the presence of tetrafluoroboric acid.
- This first alternative is particularly suitable for the preparation of marmycin A and its analogs, in particular the compounds according to the invention of formula (Ia).
- a fourth addition step making it possible to form new analogs of marmycin A, and in particular the compounds according to the invention of formulas (laD), has also been developed by the inventors.
- the present invention therefore has the particular advantage of allowing the total synthesis of marmycin A or analogues, starting from commercially available starting reagents. Since this process can be implemented on an industrial scale, it makes it possible to obtain marmycin A and its analogs in sufficient quantity for their pharmaceutical development and marketing. The process according to the invention makes it possible in particular to obtain a sufficient yield of marmycin A or the like.
- New analogues in particular oxamarmycin A and its derivatives, have also been discovered.
- the inventors have also demonstrated the labeling properties of organelles present in particular in the cytosol, such as, for example, lysosomes, by the compounds of the invention, and thus the anticancer, antibiotic and antimalarial properties of the compounds according to the invention. .
- the inventors have discovered that the compounds according to the invention do not accumulate in the nucleus of cells but in cellular organelles such as lysosomes.
- the inventors have discovered that the covalent grafting between marmycin A and its analogs and a heterocyclic compound precursor of free radicals makes it possible to obtain an anti-proliferative action of the synergistic type of the compounds obtained, in particular compounds of formula (laD) according to the invention. Indeed, the antiproliferative activity of these compounds is greater than the activity of marmycin A and heterocyclic compounds taken alone, and the anti-proliferative activity of their combination.
- the present invention relates to pharmaceutical compositions comprising compounds of the invention, and the compounds of the invention for their therapeutic uses or as a medicament.
- the present invention relates to a method of therapeutic treatment. These applications are described in more detail in the applications of the compounds of the invention.
- (CrCi O ) alkyl denotes saturated aliphatic hydrocarbon radicals, in straight or branched chain, comprising from 1 to 10 carbon atoms, preferably from 1 to 5 carbon atoms.
- a branched chain means that one or more lower alkyl groups, such as methyl, ethyl or propyl, are linked to the main linear alkyl chain.
- the preferred alkyl groups are methyl, ethyl, propyl or isopropyl, in particular methyl.
- alkyl includes substituted alkyl groups in which one or more hydrogen atoms are substituted by another atom or a group of atoms.
- (CrCio) alkylene denotes a divalent (CrCi 0 ) alkyl radical as defined above.
- (C 2 -C 10 ) alkenyl denotes an alkyl group comprising from 2 to 10 carbon atoms, preferably from 2 to 5 carbon atoms, unsaturated, that is to say comprising at least one double bond carbon-carbon, and which can be linear or branched.
- alkenyl groups that may be mentioned include ethenyl, propenyl, n-butenyl, n-butenyl, 3-methylbut-2-enyl or n-pentenyl.
- alkenyl includes substituted alkenyl groups in which one or more hydrogen atoms are substituted by another atom or a group of atoms.
- (C 3 -C 10 ) cycloalkyl means a mono- or multi-cyclic non-aromatic ring system of 3 to 10 carbon atoms, preferably 5 to 6 carbon atoms in which each ring substitutable atom is optionally substituted.
- monocyclic cycloalkyl there may be mentioned in particular cyclopentyl, cyclohexyl or cycloheptyl.
- cycloalkyl includes substituted cycloalkyl groups in which one or more hydrogen atoms are substituted by another atom or a group of atoms.
- aryl refers to a monocyclic or multicyclic aromatic ring system of 6 to 10 carbon atoms in which each ring substitutable atom is optionally substituted by another atom or group of atoms.
- aryl groups mention may be made in particular of phenyl, naphthalene and anthracene.
- (C 3 -C 20 ) heterocycle refers to a non-aromatic, mono- or multicyclic ring system of 3 to 20 carbon atoms, in which each ring substitutable atom is optionally substituted and in which at least one carbon atoms is replaced by a heteroatom, preferably an oxygen atom.
- the heterocycle is a multicyclic, for example quadricyclic, non-aromatic ring system comprising at least one organic peroxide function (-C-O-O-C).
- ose refers to a carbohydrate monomer.
- the monosaccharides have at least 3 carbon atoms and include trioses, tetroses, pentoses, hexoses, deoxy-hexoses (fucose or rhamnose), heptoses and nonoses.
- the preferred oses according to the invention are hexoses such as pyranose, allose, altrose, galactose, glucose, gulose, idose, mannose, talose, fructose, sorbose and tagatose, preferably pyranose.
- the term "ose” means the compounds of formula (IV) according to the invention.
- epoxy refers to groups of the following formula:
- R and R ' are independently of each other selected from (C 1 -C 10 ) alkyl, O (C 1 -C 10 ) alkyl, OC (O) (C 1 -C 10 ) alkyl, (C 2 -C 10 ) groups alkenyl, C (0) 0 (Ci-Cio) alkyl, NH (Ci-C 10) alkyl and N [(C 1 -C 10) alkyl] 2, wherein said alkyl may be substituted.
- halogen refers to a chlorine, bromine, iodine or fluorine atom.
- heteroatom refers to an atom selected from O, N, S or P, preferably O or N.
- reactive group with an NH 2 group of the compound of formula (IV) is meant any group allowing the formation of a CN bond between the compound of formula (III) and the compound of formula (IV) according to the invention , in particular a triflate group.
- reactive group with an OH group of the compound of formula (Ic) is meant any group allowing the formation of a covalent bond, for example of OC type, between the compound of formula (Ia) and the spacer group L, in particular a group C (O) OH or OH.
- protecting group denotes a group protecting functional chemical groups, in particular the alcohol functional groups, against undesirable reactions during the synthesis reactions. Examples of protecting groups are given in TW Greene and PGM Wuts, Protective Groups in Organic Synthesis, 3rd Edition, John Wiley & Sons, New York (1999), and are known to those skilled in the art. In particular, mention may be made of CH 3 -C (O).
- ester function is meant a group CC (O) -O-C.
- ether function is meant a COC group.
- carbonate function is meant a CO-C (O) -O-C group.
- carbamate function means a C-NH-C (O) -O-C group.
- the process for preparing a compound of formula (II) according to the invention is characterized in that the coupling step B is carried out in the presence of a compound comprising copper, of formula C X, X being selected from the group consisting of Cl, Br, I, SO 4 and OAc, preferably of formula Cu-I.
- the coupling step B is carried out in the presence of 5 mol% to 25 mol%, preferably between 10 mol% and 20 mol%, of compound comprising copper.
- the coupling step B is carried out in the presence of 10 mol% or 20 mol% of Cu-X.
- said coupling step B is performed in the presence of 1 to 6 eq. of the compound of formula (IV) as defined above, preferably 2, 3, 4 or 5 eq.
- said coupling B is carried out in the presence of a base, for example K 2 CO 3 , preferably in the presence of a solvent, for example benzene, xylene, toluene or acetonitrile.
- a base for example K 2 CO 3
- a solvent for example benzene, xylene, toluene or acetonitrile.
- said coupling step B is performed in the presence of a base, for example K 2 CO 3, in an amount of between 1 eq. and 4 eq., preferably 2 eq.
- a base for example K 2 CO 3
- said coupling step B is carried out in the presence of a solvent such as toluene or acetonitrile, preferably in the presence of toluene.
- said coupling step B is carried out in the presence of Cu-I as a catalyst, K 2 CO 3 as a base and toluene as a solvent, preferably under reflux.
- said coupling step B is carried out at a temperature of between 75 ° C. and 170 ° C., preferably between 130 ° C. and 170 ° C., more preferably between 140 ° C. and 160 ° C. According to one embodiment, said coupling step B is carried out at a temperature of 140 ° C., 150 ° C. or 160 ° C.
- said coupling step B is performed for at least 24 hours, preferably between 24 and 72 hours.
- the reaction is carried out in the presence of 20 mole% Cu-I, 2 eq. K 2 CO 3 and toluene at 160 ° C.
- the method according to the invention further comprises the coupling step A of a compound of formula (V):
- R 1 and R 2 are as defined for formula (II)
- Y being a group reactive with the carbon atom carrying the R 3 group of the compound of formula (VI)
- Rh being a protective group, preferably a CH 3 -C (0) group
- an organic solvent preferably toluene or xylene, preferably in the presence of toluene.
- Y is chosen by F, Cl, Br and I, preferably Br. According to one embodiment, the reaction is carried out under reflux.
- said coupling step A is carried out at a temperature of between 80 ° C. and 120 ° C.
- the coupling step A comprises the following steps:
- evaporation of the medium preferably in a bath at a temperature between 50 ° C and 70 ° C, for example 60 ° C;
- step iii) is carried out with stirring for at least 1 hour.
- all the steps i) to iv) of the coupling step A is carried out in a single reactor ("one pot").
- the method according to the invention also comprises an additional step of activating the compound of formula ( ⁇ ) by substitution of the hydrogen atom of the alcohol with a group Rg reactive with the group NH 2.
- of the compound of formula (IV) according to the invention for example -SO 2 -CF 3 obtained typically by reaction with triflic anhydride, of formula F 3 C-SO 2 -O-SO 2 -CF 3 , to obtain a compound of formula (III) below:
- this additional activation step is carried out in the presence of a base, in particular an aminated base such as, for example, triethylamine, preferably in the presence of an apolar solvent such as, for example, dichloromethane.
- a base in particular an aminated base such as, for example, triethylamine
- an apolar solvent such as, for example, dichloromethane.
- said activation reaction is conducted at a temperature between -65 ° C and -85 ° C.
- the method according to the invention further comprises a cyclization step C of said compound of formula (II), to form a pentacyclic structure.
- the process according to the invention is a process for preparing a compound of formula (Ia) below:
- the cyclization step Ca is carried out in the presence of HBF 4 OEt 2 or HBF 4, for example at 50% m / m in aqueous solution.
- the cyclization step Ca is carried out with a quantity of between 0.5 eq. and 5 eq of HBF 4 OEt 2 and more particularly 1, 2 or 3 eq. of HBF 4 OEt 2 .
- the cyclization step Ca is carried out in the presence of 50% to 70% w / w in aqueous solution of H BF 4 , preferably 60% w / w in aqueous solution of HBF 4
- the reaction is carried out in the presence of acetonitrile, preferably under reflux.
- the reaction is conducted for at least 3 hours, preferably between 4 hours and 24 hours.
- the cyclization step Ca is carried out indirectly by reacting a compound of formula (II) as defined above with HBF 4 , then reacting the reaction product in the presence of HBF 4 and acetonitrile, preferably under reflux, in order to obtain a compound of formula (Ia) according to the invention.
- the cyclization step Ca is carried out directly, by reacting a compound of formula (II) in the presence of HBF 4 or HCl and acetonitrile, preferably under reflux.
- the process according to the invention is a process for the preparation of compounds of formula (Ib) below:
- radicals R 1 to R 6 and Ra to Re are as defined for the compounds of formula (II), and comprising a cyclization step Cb by forming an OC bond of a compound of formula (II) as obtained according to the invention, in a basic medium, preferably in the presence of NaH, to form the compound of formula (Ib).
- a basic medium preferably in the presence of NaH
- NaH is preferably used.
- the cyclization step Cb is carried out in the presence of dichloromethane. According to another embodiment, the cyclization reaction Cb is carried out at a temperature between -20 ° C and 0 ° C, preferably between -5 ° C and 0 ° C, more preferably at 0 ° C.
- the process for preparing the compounds of formula (Ia) according to the invention comprises the following steps:
- the process for preparing the compounds of formula (Ib) according to the invention comprises the following steps:
- the method according to the invention further comprises an addition step D.
- the addition step D is selected from the group consisting of esterification, etherification, carbonate formation and carbamate formation steps. These steps are known to those skilled in the art who can determine the appropriate operating conditions.
- the addition step D is an esterification.
- the esterification is carried out at ambient temperature, for example between 20 ° C. and 25 ° C.
- the esterification is conducted in the presence of a solvent, and for example in dichloromethane.
- the esterification reaction is carried out in the presence of 4-dimethylaminopyridine and / or ⁇ , ⁇ '-dicyclohexylcarbodiimide.
- the product of the reaction of formula (laD) is purified under reduced pressure, for example between 5 mmHg and 15 mmHg, for example 10 mmHg.
- the process according to the invention is a process for the preparation of a compound of formula (laD) as defined below, said process comprising a step D of adding a compound of formula ( the) :
- radicals R 1 to R 6 , Ra to Re and n are as defined according to the invention and in which at least one of the radicals Ra to Re is an OH group, preferably an Rd radical;
- Rx is a reactive group for reacting with an OH function, preferably a C (O) OH or OH group;
- L is a group of atoms called "spacer group"
- Rz is a (C 3 -C 20 ) optionally substituted heterocycle; said adding step D resulting in the formation of a compound of the following formula (laD):
- radicals R 1 to R 6 and n are as defined according to the invention and in which the radicals Ra 1 to Re 1 have the same definitions as the radicals Ra to Re defined for the formula (la) respectively,
- Ra1 to Re1 represents the group resulting from the reaction between OH and Rx, covalently bound to L-Rz.
- Rx is a C (O) OH group.
- the spacer group L is a (CrCio) alkylene which may be substituted and / or comprise one or more heteroatoms chosen from O, N and S, and / or one or more ester, ether, carbonate and carbamate functions.
- the spacer group L is a (CrCio) alkylene which may be substituted and / or comprise at least one functional group selected from the group consisting of secondary amines, tertiary amines, esters, etheroxides, carbonates and carbamates, preferably the esters.
- the spacer group L is a polyethylene glycol.
- the spacer group L bonded to the group resulting from the reaction between the OH group and Rx is selected from the group consisting of:
- the spacer group L bonded to the group resulting from the reaction between the OH group and Rx represents a group -O-C (O) - (d-
- Rz is an optionally substituted fused multicyclic heterocycle, preferably an optionally substituted fused quadricycle.
- Rz is a heterocycle of the following formula, optionally substituted:
- Rz is artemisinin, of formula:
- the addition step D is a step of esterification of marmycin A:
- the process for preparing the compounds of formula (laD) according to the invention comprises the following steps:
- the reactive groups making it possible to form a glycosidic CC bond are chosen from OH and O (C 10 -C 10) alkyl groups, preferably OH and OMe.
- Ra and Ra1 are OH or O (CrC 4 ) alkyl, for example methoxy.
- Rb and Rb1 are H.
- Rc and Rc1 are a (Ci-C 10) alkyl, preferably a
- Rc and Rc1 are methyl.
- Rd and Rd1 are OH or methoxymethyloxygen. According to one embodiment, Rd and Rd1 are not an AcO group. According to one embodiment, Rd and Rd1 are not an OH group.
- Rb and Rb1 are H and Rc and Rc1 are methyl.
- Rb is H
- Rc is methyl
- Re is methyl
- Rb1 is H
- Rc1 is methyl
- Re1 is methyl
- R 1; R 2 , R 5 and R 6 are H. According to one embodiment, R 1; R 5 and R 6 are H and R 2 is halogen, preferably Cl, or H.
- R 3 and R 4 form, with the carbon atoms to which they are attached, a (C 6 -C 10 ) aryl group, preferably an optionally substituted phenyl group;
- radicals, cycloalkyls and aryls of radicals are independently selected from the radicals, cycloalkyls and aryls of radicals.
- a substituent chosen from the group consisting of CH 3 , OH, O, COOH, COMe and NMe 2.
- the present invention also relates to a compound of formula (II), obtainable by the process according to the invention.
- the present invention also relates to a compound of formula (Ia) obtainable by the process according to the invention.
- the present invention also relates to a compound of formula (Ib) obtainable by the process according to the invention.
- the present invention also relates to a compound of formula (laD) obtainable by the process according to the invention.
- the present invention relates to a compound of formula (II) below:
- Rc is a (CrCi 0 ) alkyl, preferably a methyl.
- the invention relates to a compound of formula (II) as defined above, with the exception of compounds for which R 3 and R 4 form, with the carbon atoms to which they are attached, a phenyl group.
- the present invention relates to a compound of formula (Ia) below:
- radicals R 1 to R 6 , Ra to Re and n are as defined according to the invention, with the exception of the compounds for which R 3 and R 4 form, with the carbon atoms to which they are attached, phenyl group, and
- the present invention relates to a compound of formula (Ib) below:
- the compounds of formulas (Ia) and / or (Ib) have the following configuration:
- the present invention also relates to the following specific compounds:
- said compounds have the following formulas:
- the present invention relates to a compound of formula (laD) below:
- the present invention relates to a compound of formula (laD) of the following formula:
- the invention relates to non-natural synthetic compounds of formula (Ia), (Ib) or (laD).
- the invention relates to compounds of formulas (Ia) and (Ib) in crystalline form, and more particularly marmycin A in the crystalline form referenced under the number CCDC1015494 (Cambridge Cristallography Data Center).
- the present invention also relates to the following specific unnatural synthetic compound:
- the present invention also relates to a compound of formula (Ia), (Ib), (laD) or (II) for use in the treatment and / or prevention of cancer, bacterial infection and / or malaria.
- Marmycin A is particularly known to have cytotoxic properties on human breast, prostate, lung, colon, ovarian and leukemia cancer lines (W. Fenical, J. Nat Prod 2007, 70, 1406 -1409).
- Marmycin A and its analogues accumulate in organelles such as lysosomes and produce reactive oxygen species (also called ROS - Reactive Oxygen Species) in the latter. These reactive oxygen species induce permeabilization of the organelle membrane. This permeabilization would then induce cell apoptosis (see Oncogene (2008) 27, 6434-6451).
- the permeabilization of the lysosomal membrane in particular is a disturbed process in cancer cells.
- the compounds according to the invention are therefore particularly useful in the treatment of cancers.
- cancers solid or “malignant” malignant tumors (also called hematological cancers) and / or their metastases.
- metastasis is meant the secondary malignant tumors formed by the migration of cancer cells to a location other than that of the starting malignancy.
- Hematologic cancers include myeloma, lymphoma and leukemia.
- the compounds of formula (Ia), (Ib), (laD) or (II) according to the invention are useful in the treatment and / or prevention of a cancer chosen from leukemias, a cancer of the colon, ovaries, breast, prostate, uterus (including cervix), lung, bladder, brain, stomach, pancreas, liver, intestine, head and neck and skin, preferably breast, prostate, lung, colon, ovarian and leukemias.
- a cancer chosen from leukemias, a cancer of the colon, ovaries, breast, prostate, uterus (including cervix), lung, bladder, brain, stomach, pancreas, liver, intestine, head and neck and skin, preferably breast, prostate, lung, colon, ovarian and leukemias.
- one or more compounds of formula (Ia), (Ib), (laD) or (II) according to the invention are used in a method of treatment and / or the prevention of a resistant cancer, and in particular of cancer with cancer stem cells.
- resistant cancers is meant especially cancers resistant to conventional therapies (such as taxol for example). This is for example a treatment of breast cancer resistant to conventional therapies.
- the invention relates to a treatment of a resistant cancer stem cell breast cancer expressing the CD44 and CD24 sub-expressing markers (CD44 hi9h / CD24 10W ).
- the invention relates to a treatment of cancer resistant cancer cells expressing for example the "Human telomerase reverse transcriptase" (hTERT).
- the invention relates to a treatment of a cancer with resistant cancer stem cells expressing the markers CD133 and / or ALGH (CD133 + and / or ALGH + ) (for example a glioblastoma multiforme, "Glioblastoma multiforme (GBM)) .
- the compounds (Ia), (Ib), (LaD) or (II) according to the invention are used in the therapeutic treatment of a second-line treatment cancer.
- one or more compounds of formula (Ia), (Ib), (laD) or (II) according to the invention are used in a method of treatment and / or the prevention of cancer presenting cancer stem cells.
- the invention relates to a treatment of a tumor of the hematopoietic system presenting cancer stem cells expressing the CD34 and CD38 sub-expressing markers (CD347CD38).
- bacteria infections means the pathologies due to the contamination of the body by bacteria.
- Malaria, or malaria is the life-threatening infectious disease caused by a parasite of the genus Plasmodium, such as Plasmodium falciparum, Plasmodium vivax, Plasmodium ovale, and Plasmodium malariae, spread by the bite of certain species of Anopheles mosquitoes.
- Plasmodium such as Plasmodium falciparum, Plasmodium vivax, Plasmodium ovale, and Plasmodium malariae, spread by the bite of certain species of Anopheles mosquitoes.
- the compounds of formula (Ib) and (laD) are useful in the treatment and / or prevention of cancers, bacterial infections and / or malaria.
- the compounds of formula (Ia) and (laD) are useful in the treatment and / or prevention of malaria.
- the present invention also relates to a compound of formula (Ia), (Ib), (laD) or
- the present invention also relates to the use of a compound of formula (Ia), (Ib), (La) or (II) for the preparation of a medicament for use in the treatment and / or prevention of cancer, bacterial infection and / or malaria.
- the present invention also relates to a method for treating and / or preventing cancers, bacterial infections and / or malaria comprising administering to a patient at least one compound of formula (Ia), (Ib), (laD ) and / or (II).
- the present invention also provides compositions, preferably pharmaceutical, comprising at least one compound of formula (Ia), (Ib), (La) and / or (II).
- the present invention therefore relates to pharmaceutical compositions comprising, as active ingredient, at least one compound of formula (Ia), (Ib) and / or (II) according to the invention.
- These pharmaceutical compositions contain an effective dose of at least one compound of formula (Ia), (Ib), (LaD) and / or (II) according to the invention, or a pharmaceutically acceptable salt, as well as at least one excipient.
- pharmaceutically acceptable Said excipients are chosen according to the pharmaceutical form and the desired mode of administration, from the usual excipients which are known to those skilled in the art.
- the pharmaceutical compositions may contain other active compounds.
- compositions of the present invention for oral, sublingual, subcutaneous, intramuscular, intravenous, topical, local, intratracheal, intranasal, transdermal or rectal administration, the active ingredient of formula (Ia), (Ib) , (laD) and / or (II) as defined according to the invention, or a salt thereof, may be administered in unit dosage form, in admixture with conventional pharmaceutical excipients, to animals and humans for the treatment and / or prevention of the diseases mentioned above.
- Suitable unit dosage forms include oral forms such as tablets, soft or hard capsules, powders, granules and oral solutions or suspensions, sublingual, oral, intratracheal, intraocular, intranasal forms of administration by inhalation, topical, transdermal, subcutaneous, intramuscular or intravenous administration forms, rectal administration forms and implants.
- oral forms such as tablets, soft or hard capsules, powders, granules and oral solutions or suspensions, sublingual, oral, intratracheal, intraocular, intranasal forms of administration by inhalation, topical, transdermal, subcutaneous, intramuscular or intravenous administration forms, rectal administration forms and implants.
- the compounds according to the invention can be used in solutions, emulsions, creams, gels, ointments or lotions, without particular limitation in this respect.
- the present invention also relates to the use of a compound of formula (Ia), (Ib), (La) or (II) for the labeling of an organelle, preferably the lysosome.
- the present invention also relates to the use of a compound of formula (Ia), (Ib), (laD) or (II) as a marker or biomarker, for example of at least one organelle, preferably the lysosome.
- the present invention also relates to a method for detecting at least one lysosome comprising contacting at least one cell, preferably of the eukaryotic type, with a compound of formula (Ia), (Ib), (laD) or (II).
- the present invention also relates to a method for labeling at least one lysosome comprising contacting at least one preferably eukaryotic cell with a compound of formula (Ia), (Ib), (laD) or ( II).
- said detection method further comprises the following steps:
- the detection method comprises the detection of the possible presence of the compounds of the invention by means of recording the fluorescence.
- the detection method comprises the detection of the possible presence of the compounds of the invention by immunodetection.
- the detection method comprises the detection of lysosomes and compounds of the invention.
- the invention relates to a method for evaluating cell proliferation using a detection method according to the invention.
- the invention also relates to a biological labeling kit comprising at least one compound of formula (Ia), (Ib), (laD) or (II).
- this kit also comprises at least one detectable compound by imaging, such as for example a fluorophore compound or at least one antibody.
- Figures 1, 2 and 3 show the cytotoxic activity of marmycin A and doxorubicin (intercalating agent used in the treatment of cancer).
- Figure 1 shows the percentage of cell viability as a function of ⁇ concentration concentration of marmycin A (solid line) or doxorubicin (dotted line) of U20S cells (osteosarcoma cancer line).
- Figure 2 shows the percentage of cell viability as a function of ⁇ concentration concentration of marmycin A (solid line) or doxorubicin (dashed line) of A2780 cells (ovarian cancer line).
- the IC 50 values obtained are 9.8 ⁇ for marmycin A and 0.06 ⁇ for doxorubicin.
- FIG. 3 shows the percentage of cell viability as a function of the concentration in ⁇ of compound 33 (thick solid line), doxorubicin (dotted line) or etoposide (thin line) of HT1080 cells (fibrosarcoma line). .
- FIG. 4 represents photographs obtained by fluorescence in which: "DAPI” represents the labeling at the level of the cell nucleus by DAPI (4 ', 6'-diamidino-2-phenylindole);"Doxorubicin” represents the marking of the doxorubicin at the cellular nucleus; "DAPI / Marmycin A” represents cell level labeling by DAPI and Marmycin A labeling of lysosomes.
- FIG. 5 represents photographs obtained by fluorescence in which: "Marmycin A” represents the marking and the localization of Marmycin A,
- DND-22 represents the labeling and localization of lysosomes
- Merge represents the colocalization of Marmycin A and lysosomes
- ZOOM represents a photograph with a magnification on a particular area of the photograph
- FIG. 6 represents fluorescence-obtained photographs in which: "DAPI" represents the labeling at the level of the cell nucleus by the DAPI;
- GFP-Lamp1 represents the labeling of lysosomes by the anti-LAMP1 antibody
- Marmycin A represents the marking and location of Marmycin A
- MERGE represents the colocalization of Marmycin A and lysosomal proteins GFP-Lamp1 at the level of lysosomes, and DAPI at the level of the cell nucleus.
- Figure 7 shows a Western Blot analysis in which "4! Represents Doxorubicin and "1! »Marmycin A.
- FIG. 8 represents fluorescence-obtained photographs in which: "DAPI” represents the labeling at the cellular nucleus by the DAPI; "GFP-Lamp1" represents the labeling of lysosomes by the anti-LAMP1 antibody;
- MERGE represents the colocalization of artesumycin and lysosomal proteins
- GFP-Lamp1 at the level of lysosomes
- DAPI at the level of the cellular nucleus
- FIG. 9 represents the percentage of viable MDA-MB-231 cells after 72 hours of treatment with doxorubicin (DXR) (round, fine dashed), marmycin A (squares, in points), artesunate (round, dashed) thick), artesumycin (round, solid line) and a combination of marmycin A and artesunate (round, dots and dashes).
- DXR doxorubicin
- Figure 10 shows a cytotoxic activity of artesumycin (TC5) on a HMLER CD24- tumor strain cell line.
- Figure 11 shows a cytotoxic activity of artesumycin (TC5) on a HMLER ID2 cancer cell line.
- EXAMPLE 1 Synthesis of the compounds of formulas (V) and (VI) according to the invention
- the synthesis of the dienophile 5 is carried out according to scheme 1.
- Compound 8 (supplier AIdrich) is protected under standard conditions as diacetylated naphthalene 9 which is then brominated in an acid medium (see Kitani, Y. Morita, A. Kumamoto, T. Ishikawa, T. Helvetica Chimica Acta Carreno, MC et al Chem Eur Eur J 2000, 6, 906 Shis, C, Swenton, JSJ Org Chem 1982, 47, 2825).
- the diene (compound of formula (VI)) is prepared from commercially available compound (AIdrich supplier) according to Scheme 2.
- a first bromination step is first performed.
- Compound 11 is protected in acetal 12 in the presence of ethylene glycol and a catalytic amount of acid.
- the reaction is carried out at a concentration of 0.4 M in less than 2 hours under reflux of benzene.
- Compound 12 is converted to 13 by a palladium-catalyzed coupling step in order to graft the vinyl chain.
- the compounds 5 and 15 are refluxed with toluene for 16 hours, the medium then undergoes a slow evaporation of about 1 hour on a rotary evaporator in a bath at 60 ° C.
- the medium is taken up in MeOH and remains stirring in the dark for 4 hours. 3 equivalents of potassium carbonate are then added in order to obtain the desired product after treatment.
- Coupling B according to the invention was carried out a first time according to the following scheme:
- Coupling B is carried out in the presence of K 2 CO 3 in refluxing toluene with 20 mol% Cu-I, 2 eq. of K 2 C0 3 , 3 eq. of 4 in toluene at 160 ° C for 72 hours. A yield of 33% is obtained.
- Coupling B according to the invention was also performed according to the following scheme 6.
- the coupling B according to the invention makes it possible to obtain a yield of at least 30% of compound of formula (II), which is definitely greater than the yield obtained with a Buchwald-Hartwig type coupling.
- Comparative Example 8 Cyclization Test in the Presence of an Acid
- the intramolecular C-glycosylation pathway favored by a Lewis or Bronsted acid was tested.
- a large study was conducted by varying the acid (BF 3 Et 2 0, TMSOTf, ScOTf, InOTf, PPTS, APTS, Cp 2 HfCI 2 / AgCI0 4) without significant results. Only deprotection of compound 27 at 28, and formation of amino anthraquinone 29 were observed.
- N-Acetyl Cysteine (NAC, A9165 Sigma) or Pan-caspase inhibitor zVAD-FMK (pharmingen BD 550377) were pretreated for 1 hour or 30 minutes prior to treatment with Marmycin A, respectively.
- the reagent "CelITiter-Blue® Reagent” (20 l / well) was added after 24, 48, or 72 hours of treatment, and the cells were incubated for one hour prior to fluorescence detection (560 (20) Ex / 590 (10) Em) using a device "Perkin Elmer Wallac 1420 Victor2 Microplate Reader".
- IC 50 values are 10.3 ⁇ M for marmycin A and 0.1 ⁇ M for doxorubicin at 72 hours.
- the IC 50 values obtained are 75 ⁇ M for oxamethoxymarmycin, 0.035 ⁇ M for doxorubicin, and 0.5 ⁇ M for etoposide, at 72 hours.
- Example 10 Cellular localization of the compounds according to the invention
- U20S cells cultured with less than 40% confluency were treated for 24 hours with 10 ⁇ l of compound unless otherwise indicated.
- the LysoTracker® Blue DND-22 marker (L7525, Molecular Probes®) was added 30 minutes before fixation.
- GFP-Lamp1 was transiently transfected according to commercial instructions.
- 5 mL of CelILighl® Lysosomes-GFP BacMam 2.0 (C10596, Life Technologies) were mixed with 200 ⁇ L of U20S culture medium and added to each well of a 24-well plate. After incubation overnight (16 hours), the cells were washed and treated with Marmycin A as indicated in Example 9.
- Marmycin A indicated in Example 9.
- cells were fixed for 12 minutes in 2% formaldehyde / PBS.
- the coverslips were washed as described above and mounted with VectaShield® mounting medium for fluorescence analysis with or without DAPI (Vector Laboratories Ltd).
- the images obtained were taken with a Leica microscope (Zeiss) and analyzed with the ImageJ software.
- Figure 5 illustrates the colocalization of Marmycin A with lysosomes. Marmycin A is present and accumulates in lysosomes.
- Figure 6 also illustrates that Marmycin A accumulates in lysosomes.
- Cells with the treatment indicated according to Example 10 were washed twice in PBS and lysed with 2X Laemmli buffer. The cell extracts were boiled for five minutes at 100 ° C and quantified with the Nanodrop 2000 device (Thermal Scientific). 100 ug protein lysate was separated using a 4-20% gel Mini PROTEAN ® TGX Stain-Free TM (BioRad) and transferred to nitrocellulose membrane (Amersham).
- anti-3-actin (ab8226, Abcam), anti-p62 (610833, BD Transduction Laboratories TM), anti-H2AX (PA1 - 14198, Thermal Scientific), anti-gH2AX ( Ser139) (# 2577, Cell Signaling), anti-p21, anti-p53 (1C12) (# 2524, Cell Signaling), anti-p-p53, anti-LC3B (# 2775, Cell Signaling), diluted anti-BID at 1/1000 in 5% BSA, 0.1% Tween-20 / TBS.
- the crude product is purified by thin-layer chromatography (heptane / AcOEt,
- U20S cells cultured with less than 40% confluency were treated for 24 hours with 10 ⁇ l of artesumycin.
- the LysoTracker® Blue DND-22 marker (L7525, Molecular Probes®) was added 30 minutes before fixation.
- GFP-Lamp1 was transiently transfected according to commercial instructions.
- 5 mL of CelILight® Lysosomes-GFP BacMam 2.0 (C10596, Life Technologies) were mixed with 200 ⁇ l of U20S culture medium and added to each well of a 24-well plate. After incubation overnight (16 hours), the cells were washed and treated with artesiimycin as indicated in Example 9. The immunofluorescence analysis was performed in the same way as in Example 10.
- Figure 8 shows photographs obtained by fluorescence and illustrates the colocalization of artesumycin with lysosomes. Artesumycin is present and accumulates in lysosomes.
- MDA-MB-231 cells human breast cancer cells purchased from ATCC were maintained in McCoy's 5A medium supplemented with 10% bovine serum (FBS) serum. and 1 X Antibiotic-Antimycotic (all from Gibco®) at 37 ° C with 5% C0 2 .
- the cell viability measurement was carried out by plating 2000 cells per well in a 96-well plate. N-Acetyl Cysteine (NAC, A9165 Sigma) or Pan-caspase inhibitor zVAD-FMK (pharmingen BD 550377) were pretreated for 1 hour or 30 minutes prior to treatment with the test compounds, respectively.
- the reagent "CelITiter-Blue® Reagent” (20Ml / well) was added after 24, 48, or 72 hours of treatment, and the cells were incubated for one hour before fluorescence detection (560 (20) Ex / 590 (10) Em) using a "Perkin Elmer Wallac 1420 Victor2 Microplate Reader” device.
- test compounds are doxorubicin, marmycin A, artesunate, artesumycin and a combination of marmycin A and artesunate (see Figure 9).
- Figure 9 shows cytotoxic activity on a cancer cell line of marmycin A and artesumycin.
- Artesumycin at a concentration of 0.9 ⁇ makes it possible to obtain a cell viability of less than 50%.
- the cytotoxic activity of artesumycin is greater than that of marmycin A and also greater than that of the combination of marmycin A with artesunate.
- the IC50 for artesumycin is 0.9 ⁇ .
- the IC50 of the combination artesunate with marmycin A is 10 ⁇ .
- Cell viability was evaluated by the following protocol:
- the "human mammary epithelial cell line” human mammary epithelial cell line was infected with a retrovirus carrying hTERT, SV40 and the oncogenetic HrasV12 allele, called CD44high / CD24low HMLER cells, not expressing E-cadherin and Vimentin (reference HMLER CD24low or HMLER CD44 + / CD24-), generously offered by A. Incieux (INSERM).
- the line referenced HMLER ID2 is a line transformed hTert, SV40, HRasV12 isogenic but not strain.
- HMLER CD44 / 1i9 / 1 / CD24 cells olv (cancer stem cells; "Cancer stem cell”; CSCs), HMLER CD44 / ⁇ / 7CD24 / 1 "(non-CSCs) were cultured in DMEM / F12 medium. supplemented with 10% FBS, 10 ⁇ g / mL insulin, 0.5 ⁇ g / mL hydrocortisone, 10 ng / mL hEGF, and 0.5 ⁇ g / mL puromycin.
- a mycoplasma test was performed using a PCR mycoplasma detection kit (G238, 470 Applied Biological Materials) confirming the absence of cell contamination.
- the test compounds are doxorubicin, artesunate, and artesumycin (TC5) (see Figures 10 and 11).
- Figure 10 shows a cytotoxic activity of artesumycin on a HMLER CD24- tumor strain cell line.
- Artesumycin at a concentration of 1 ⁇ makes it possible to obtain a cell viability well below 50% (approximately 18%).
- the cytotoxic activity of artesumycin is greater than that of artesunate.
- the IC50 of artesumycin is 10OnM.
- Figure 11 shows a cytotoxic activity of artesumycin on a HMLER ID2 cancer cell line.
- Artesumycin at a concentration of 0.1 ⁇ makes it possible to obtain a cell viability well below 50% (approximately 44%).
- the cytotoxic activity of artesumycin is greater than that of artesunate.
- the IC50 of artesumycin is 98nM.
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Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1458364A FR3025512A1 (fr) | 2014-09-05 | 2014-09-05 | Procede de preparation de la marmycine a et de ses analogues ainsi que leurs utilisations |
| FR1550547A FR3025513B1 (fr) | 2014-09-05 | 2015-01-23 | Procede de preparation de la marmycine a et de ses analogues ainsi que leurs utilisations |
| PCT/EP2015/069899 WO2016034559A1 (fr) | 2014-09-05 | 2015-09-01 | Procede de preparation de la marmycine a et de ses analogues ainsi que leurs utilisations |
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| Publication Number | Publication Date |
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| EP3189058A1 true EP3189058A1 (fr) | 2017-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| EP15759724.6A Withdrawn EP3189058A1 (fr) | 2014-09-05 | 2015-09-01 | Procede de preparation de la marmycine a et de ses analogues ainsi que leurs utilisations |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20170260210A1 (fr) |
| EP (1) | EP3189058A1 (fr) |
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| WO (1) | WO2016034559A1 (fr) |
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| CN101993446B (zh) * | 2009-08-13 | 2012-11-28 | 中国科学院上海药物研究所 | 一类新型苯并蒽环类化合物及其制备方法和用途 |
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- 2015-01-23 FR FR1550547A patent/FR3025513B1/fr not_active Expired - Fee Related
- 2015-09-01 US US15/508,808 patent/US20170260210A1/en not_active Abandoned
- 2015-09-01 EP EP15759724.6A patent/EP3189058A1/fr not_active Withdrawn
- 2015-09-01 WO PCT/EP2015/069899 patent/WO2016034559A1/fr not_active Ceased
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Also Published As
| Publication number | Publication date |
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| US20170260210A1 (en) | 2017-09-14 |
| FR3025513A1 (fr) | 2016-03-11 |
| WO2016034559A1 (fr) | 2016-03-10 |
| FR3025512A1 (fr) | 2016-03-11 |
| FR3025513B1 (fr) | 2018-07-06 |
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