WO2004005233A1 - Derives de 1,3-diphenylprop-2-en-1-one substitues, preparation et utilisations - Google Patents
Derives de 1,3-diphenylprop-2-en-1-one substitues, preparation et utilisations Download PDFInfo
- Publication number
- WO2004005233A1 WO2004005233A1 PCT/FR2003/002127 FR0302127W WO2004005233A1 WO 2004005233 A1 WO2004005233 A1 WO 2004005233A1 FR 0302127 W FR0302127 W FR 0302127W WO 2004005233 A1 WO2004005233 A1 WO 2004005233A1
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- WO
- WIPO (PCT)
- Prior art keywords
- group
- prop
- dimethyl
- hydroxy
- hydroxyphenyl
- Prior art date
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- DQFBYFPFKXHELB-VAWYXSNFSA-N trans-chalcone Chemical class C=1C=CC=CC=1C(=O)\C=C\C1=CC=CC=C1 DQFBYFPFKXHELB-VAWYXSNFSA-N 0.000 title claims abstract description 12
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- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 58
- -1 thionitroso group Chemical group 0.000 claims description 46
- 125000000217 alkyl group Chemical group 0.000 claims description 36
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 34
- 238000011282 treatment Methods 0.000 claims description 27
- 125000001424 substituent group Chemical group 0.000 claims description 24
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- 229910052717 sulfur Inorganic materials 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 11
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 125000003545 alkoxy group Chemical group 0.000 claims description 9
- 125000004414 alkyl thio group Chemical group 0.000 claims description 9
- 125000005843 halogen group Chemical group 0.000 claims description 9
- 125000004434 sulfur atom Chemical group 0.000 claims description 9
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 8
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- RMSGQZDGSZOJMU-UHFFFAOYSA-N 1-butyl-2-phenylbenzene Chemical group CCCCC1=CC=CC=C1C1=CC=CC=C1 RMSGQZDGSZOJMU-UHFFFAOYSA-N 0.000 claims description 6
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- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 5
- XLPVZMCMSVDPIL-UHFFFAOYSA-N 4-[3-(2-hydroxyphenyl)-3-oxoprop-1-enyl]-3-methoxy-2,6-dimethylbenzoic acid Chemical compound COC1=C(C)C(C(O)=O)=C(C)C=C1C=CC(=O)C1=CC=CC=C1O XLPVZMCMSVDPIL-UHFFFAOYSA-N 0.000 claims description 4
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
- C07C323/50—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton
- C07C323/51—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton
- C07C323/52—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and saturated
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
- C07C323/22—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and doubly-bound oxygen atoms bound to the same carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/333—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
- C07C67/343—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
- C07C69/67—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids
- C07C69/708—Ethers
- C07C69/712—Ethers the hydroxy group of the ester being etherified with a hydroxy compound having the hydroxy group bound to a carbon atom of a six-membered aromatic ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
- C07C69/73—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of unsaturated acids
- C07C69/738—Esters of keto-carboxylic acids or aldehydo-carboxylic acids
Definitions
- the present invention relates to new derivatives of 1, 3-diphenylprop-
- 2-en-1-one substituted, pharmaceutical compositions comprising them, their therapeutic applications, in particular for the treatment of cerebral ischemia. It also relates to a process for the preparation of these derivatives.
- cerebrovascular pathology (150,000 new cases per year) represents the third cause of death and the first cause of disability in adults. Ischemical and hemorrhagic accidents respectively concern 80% and 20% of this pathology. Ischemic strokes are an important therapeutic issue to reduce the morbidity and mortality of this condition. Advances have been made not only in the treatment of the acute phase of ischemia but also in its prevention.
- a first strategy is to prevent the occurrence of ischemic strokes by preventing risk factors (high blood pressure, high cholesterol, diabetes, atrial fibrillation, etc.) or by preventing thrombosis, in particular using anti - platelet aggregators or anticoagulants (Gorelick 2002) (Adams 2002).
- risk factors high blood pressure, high cholesterol, diabetes, atrial fibrillation, etc.
- thrombosis in particular using anti - platelet aggregators or anticoagulants (Gorelick 2002) (Adams 2002).
- a second strategy is to treat the acute phase of ischemia in order to reduce the long-term consequences (Lutsep and Clark 2001).
- the penumbra zone the intermediate zone between the heart of ischemia where the neurons are necrotic and the intact nervous tissue, is the site of a physiopathological cascade which ends within a few days of neuronal death, if reperfusion is not ensured or if neuroprotection is not effective enough.
- the first event which occurs within the first few hours, is a massive release of glutamate which results in neuronal depolarization as well as cellular edema.
- the entry of calcium into the cell induces mitochondrial damage promoting the release of free radicals as well as the induction of enzymes which cause the membrane degradation of neurons.
- NF- ⁇ B transcription factors
- This activation induces inflammatory processes such as the induction of adhesion proteins at the endothelial level, the infiltration of the ischemic focus by neutrophils, microglial activation, the induction of enzymes such as nitric oxide (NO) synthase type II or type II cyclooxygenase.
- NO nitric oxide
- These inflammatory processes lead to the release of NO or prostanoids which are toxic to the cell. All of these processes result in a phenomenon of apoptosis causing irreversible lesions (Dimagl, ladecola et al. 1999).
- prophylactic neuroprotection is based on experimental bases demonstrating resistance to ischemia in animal models. Indeed, various procedures applied prior to the realization of an experimental cerebral ischemia make it possible to make it less severe. Different stimuli make it possible to induce resistance to cerebral ischemia: preconditioning (brief ischemia preceding prolonged ischemia); thermal stress; administration of a low dose of bacterial lipopolysaccharide (Bordet, Deplanque et al. 2000).
- Fibrates are widely used in the treatment of hypertriglyceridemia. They also have favorable effects on the level of hypercholesterolemia. Fibrates have a pleiotropic spectrum of action. They activate a class of nuclear receptors (PPARs) involved in the coordination of the expression of proteins responsible for the transport or metabolism of lipids. The pleiotropic nature of the action spectrum of fibrates lies in the diversity of target genes for PPARs. In fact, fibrates are able to normalize lipemia and therefore reduce the development of atherosclerosis, but they also have anti-inflammatory properties on the vascular wall and on thrombosis (Fruchart, Staels et al. 2001).
- PPARs nuclear receptors
- PPARs ( ⁇ , ⁇ , ⁇ ) belong to the family of hormone activated nuclear receptors. When activated by an association with their ligand, they heterodimerize with Retinoid-X-Receptor (RXR) and then bind to RXR.
- RXR Retinoid-X-Receptor
- PPREs Peroxisome Proliferator Response Elements
- the binding of PPAR to PPRE thus induces the expression of the target gene (Fruchart, Staels et al. 2001).
- PPARs are distributed in a wide variety of organs, but with a certain specificity for each of them, with the exception of PPAR ⁇ , the expression of which seems ubiquitous.
- the expression of PPAR ⁇ is particularly important in the liver and along the intestinal wall whereas PPAR ⁇ is mainly expressed in adipose tissue and the spleen.
- ⁇ , ⁇ , ⁇ At the level of the central nervous system the three subtypes ( ⁇ , ⁇ , ⁇ ) are expressed.
- Cells such as oligodendrocytes as well as astrocytes express more particularly the PPAR ⁇ subtype (Kainu, Wikstrom et al. 1994).
- PPARs The target genes of PPARs control the metabolism of lipids and carbohydrates.
- PPARs participate in other biological processes.
- the activation of PPARs by their ligands induces the change in the transcriptional activity of genes which modulate the inflammatory process, antioxidant enzymes, angiogenesis, cell proliferation and differentiation, apoptosis, the activities of iNOS, MMPases and TIMPs (Smith, Dipreta et al. 2001; Clark 2002).
- the activation of PPAR ⁇ and ⁇ is for example responsible for stopping the proliferation of epidermal keratinocytes and promotes their differentiation (Ellis, Varani et al. 2000; Komuves, Hanley et al. 2000).
- Free radicals are involved in a very broad spectrum of pathologies such as allergies, cancer initiation and promotion, cardiovascular pathologies (atherosclerosis, ischemia), genetic and metabolic disorders (diabetes), infectious and degenerative diseases (Alzheimer, Parkinson , Prion, etc.) as well as ophthalmic problems (Mates, Perez-Gomez et al. 1999).
- ROS Reactive oxygen species
- the ROS consist of hydroxyl radicals (OH), superoxide anion (O 2 " ), hydrogen peroxide (H 2 O 2 ) and nitric oxide (NO). These species are very labile and, due to their high chemical reactivity, they constitute a danger for the biological functions of cells, they provoke lipid peroxidation reactions, the oxidation of certain enzymes and very important oxidations of proteins which lead to their degradation. Lipid peroxidation is an essential process in aerobic organisms, as peroxidation products can cause DNA damage, thus disrupting or altering the balance between production, management and elimination of radical species by natural antioxidant defenses leads to the establishment of deleterious processes for the cell or organism. ROS is managed via an antioxidant system which includes an enzymatic and non-enzymatic component.
- the enzyme system consists of several enzymes, the characteristics of which are as follows:
- SOD Superoxide dismutase
- Catalase is very effective in converting hydrogen peroxide (H 2 O 2 ) into water and into 0 2 . Hydrogen peroxide is catabolized enzymatically in aerobic organisms. Catalase also catalyzes the reduction of a variety of hydroperoxides (ROOH).
- ROOH hydroperoxides
- Glutathione peroxidase contains selenium as a cofactor and catalyzes the reduction of hydroperoxides (ROOH and H 2 O 2 ) using glutathione, and thus protects cells against oxidative damage.
- Non-enzymatic antioxidant cell defenses are made up of molecules that are synthesized or provided by food.
- antioxidant molecules present in different cellular compartments.
- Detoxifying enzymes are for example responsible for eliminating free radicals and are essential for the life of the cell.
- the three most important types of antioxidant compounds are carotenoids, vitamin C and vitamin E (Gilgun-Sherki, Melamed et al. 2001).
- the inventors have developed new compounds capable of preventing the appearance of the risk factors described above and capable of exerting a prophylactic activity in term of neuroprotection, but also to ensure active neuroprotection in the acute phase of ischemic strokes.
- the compounds according to the invention have both PPAR activator, antioxidant and anti-inflammatory properties and, as such, the compounds have a high therapeutic or prophylactic potential for ischemical accidents. brain.
- the present invention thus relates to new derivatives of substituted 1, 3-diphenylprop-2-en-1-one, pharmaceutical compositions comprising them, their therapeutic applications, in particular for the treatment of cerebral ischemia.
- the present invention therefore aims to provide new 1,3-diphenylprop-2-en-1-one substituted derivatives having an improved formula and satisfactory therapeutic efficacy.
- X1 represents a halogen or a group -R1 or a group corresponding to the following formula: -G1-R1,
- X2 represents a hydrogen atom or a thionitroso group or a hydroxy group or an unsubstituted alkyloxy group or an alkylcarbonyloxy group or a thiol group or an alkylthio group or an alkylcarbonylthio group, X2 can also represent an oxygen or sulfur atom linked to carbon 3 of the propene chain, to form a derivative of 2-phenyl-4H-1-benzopyran-4-one type (this possibility is represented in formula (I) by the dotted lines),
- X3 represents a group -R3 or a group corresponding to the following formula: -G3-R3,
- X4 represents a halogen or a thionitroso group or a group -R4 or a group corresponding to the following formula: -G4-R4,
- X5 represents a group -R5 or a group corresponding to the following formula: -G5-R5,
- X6 is an oxygen atom or a nitrogen atom, in the case where X6 is a nitrogen atom, it carries a hydrogen atom or a hydroxy group or an alkyloxy group,
- R1, R3, R4, R5, identical or different represent a hydrogen atom or an alkyl group substituted or not by at least one group belonging to group 1 or group 2 defined below,
- G1, G3, G4, G5, identical or different, represent an oxygen or sulfur atom
- substituents of group 1 are chosen from carboxy groups of formula: -COOR ⁇ and carbamoyl groups of formula: -CONR 6 R 7 ,
- substituents of group 2 are chosen from sulfonic acid (-S0 3 H) and the sulfonamide groups of formula: -SO2NR6R7.
- R ⁇ and R 7 identical or different, representing a hydrogen atom or an alkyl radical optionally substituted by at least one group of type 1 or 2,
- X 6 represents an oxygen atom
- X 4 represents a group of formula -O- CR 8 R9-COOR ⁇ o, with R ⁇ and Rg, identical or different, represent an alkyl radical from C1 to C2 (comprising one or two carbon atoms), and R- ⁇ 0 represents a hydrogen atom or an alkyl radical from C1 to C7 (comprising from one to seven carbon atoms),
- Xi represents a halogen atom or a radical R1 or -G1 R1, where R1 represents an unsubstituted alkyl radical from C1 to C2 and G1 represents an atom of oxygen, XQ represents an oxygen atom and represents a group of formula -O- CR11R12-COOR10, with Ru and R12, identical or different, represent a hydrogen atom or an alkyl radical from C1 to C2, and R 10 represents a hydrogen atom or an alkyl radical from C1 to C7, and
- - X 2 represents a hydrogen atom and Xi represents -G1R1 where G1 represents an oxygen atom and R1 represents CH2COOH.
- the present invention also includes the prodrugs of the compounds of formula (I), which, after administration in a subject, will transform into compounds of formula (I) and / or the metabolites of the compounds of formula (I) which exhibit therapeutic activities comparable to compounds of formula
- the present invention also relates to a pharmaceutical composition
- a pharmaceutical composition comprising, in a pharmaceutically acceptable carrier, at least one compound of formula (I) as described above, optionally in combination with another therapeutic active.
- It also relates to the use of at least one compound of formula (I) for the preparation of a pharmaceutical composition intended for treating a cerebrovascular pathology, such as cerebral ischemia or a hemorrhagic stroke.
- the present invention finally relates to a process for the preparation of the compounds of formula (I).
- the derivatives of formula (I) as described above can adopt the cis or trans conformation.
- none of the groups X3, X4 and X5 represents a hydrogen atom.
- the compounds of formula (I) corresponding to the preceding definition constitute the compounds of the general family (II).
- one or two of the groups X3, X4 and X5 represents a hydrogen atom and X1 is an unsubstituted alkyl group.
- the compounds of formula (I) corresponding to the preceding definition constitute the compounds of the general family (III).
- one or two of the groups X3, X4 and X5 represents a hydrogen atom and X2 is a thionitroso group or an alkylcarbonyloxy group or a thiol group or an alkylthio group or an alkylcarbonylthio group, X2 can also represent a atom. oxygen or sulfur linked to carbon 3 of the propene chain, to form a derivative of 2-phenyl-4H-1-benzopyran-4-one type (this possibility is represented in formula (I) by the dotted lines).
- the compounds of formula (I) corresponding to the preceding definition constitute the compounds of the general family (IV).
- one or two of the groups X3, X4 and X5 represents a hydrogen atom and at least one of the groups X1, X3, X4 or X5 is of the GR form in which G is a sulfur atom.
- the compounds of formula (I) corresponding to the preceding definition constitute the compounds of the general family (V).
- one or two of the groups X3, X4 and X5 represents a hydrogen atom and at least one of the groups X1, X3, X4 or X5 is of the form -GR in which G is an oxygen atom and R is an alkyl group substituted by a substituent of group 1 in which R6 is not a hydrogen atom.
- the compounds of formula (I) corresponding to the preceding definition constitute the compounds of the general family (VI).
- one or two of the groups X3, X4 and X5 represents a hydrogen atom and at least one of the groups X1, X3, X4 or X5 is of the form GR in which G is an oxygen atom and R is an alkyl group substituted by a sulfonamide as defined above.
- the compounds of formula (I) corresponding to the preceding definition constitute the compounds of the general family (VII).
- X4 is a thionitroso group or a group -R4 or a group corresponding to the formula -G4-R4.
- the derivatives of formula (I) in which X4 meets the previous definition represent the derivatives of general formula (VIII) in which G4 and R4 are as defined above.
- X2 is a thionitroso group or a hydroxy group or an alkyloxy group or a thiol group or an alkylthio group.
- the derivatives of formula (I) in which X2 meets the previous definition represent the derivatives of general formula (IX).
- X4 is a thionitroso group or a group -R4 or a group corresponding to the formula -G4-R4 and X2 is a group thionitroso or a hydroxy group or an alkyloxy group or a thiol group or an alkylthio group, G4 and R4 being as defined above.
- X1 represents a group -R1 or a group corresponding to the formula -G1-R1, with R1 being an alkyl group substituted by a group belonging to group 1 and G1 and the substituent of group 1 being as defined above.
- another subject of the invention relates to the derivatives of formula (XI) as described above, characterized in that X1 is a group -G1-R1.
- another subject of the invention relates to the derivatives of formula (XI) as described above, characterized in that X1 is a group -G1-R1 in which G1 is an oxygen atom.
- X1 represents a group -R1 or a group corresponding to the formula -G1-R1, with R1 being an alkyl group substituted by a group belonging to group 2 and G1 and the substituent of group 2 being as defined above.
- X3 represents a group -R3 or a group corresponding to the formula -G3-R3, with R3 being an alkyl group substituted by a group forming part of group 1 and G3 and the substituent of group 1 being as defined above.
- X3 represents a group -R3 or a group corresponding to the formula -G3-R3, with R3 being an alkyl group substituted by a group forming part of group 2 and G3 and the substituent of group 2 being as defined above.
- X4 represents a group -R4 or a group corresponding to the formula -G4-R4 with R4 being an alkyl group substituted by a group belonging to group 1 and G4 and the substituent of group 1 being as defined above.
- another subject of the invention relates to derivatives of formula (XV) as described above, characterized in that X4 is a group -G4-R4.
- another subject of the invention relates to derivatives of formula (XV) as described above, characterized in that X4 is a group -G4-R4 in which G4 is an oxygen atom.
- another subject of the invention relates to derivatives of formula (XV) as described above, characterized in that X4 is a group -G4-R4 in which G4 is an oxygen atom, and X3 or X5 represents respectively R3 or G3R3, on the one hand, and R5 or G5R5, on the other hand, with R3 or R5 being alkyl groups carrying a group 1 substituent, said group 1 substituent being as defined above.
- X1 represents a group -R1 with R1 being an alkyl group from C5 to C24 substituted or not substituted by at least one group forming part of group 1 or group 2 defined above.
- X1 represents a group -G1 R1 with R1 being an alkyl group from C4 to C24 substituted or not substituted by at least one group making part of group 1 or group 2 defined above.
- Another subject of the invention relates to derivatives of formula (I) as described above, characterized in that X4 is a group -G4-R4, R4 is as defined above and X3 or X5 represent R3 or G3R3 respectively, on the one hand, and R5 or G5R5, on the other hand, with R3 or R5 which represents an alkyl group carrying a group 1 substituent, said group 1 substituent being as defined above.
- Another subject of the invention relates to the derivatives of formula (I) in which X1, X3, X4 or X5 represents OC (CH3) 2COOR6 with R6 being as defined above.
- alkyl denotes a saturated, linear, branched or cyclic hydrocarbon radical, halogenated or not, more particularly having from 1 to 24, preferably 1 to 10, carbon atoms such as methyl, ethyl, propyl , isopropyl, butyl, isobutyl, fetf-butyl, pentyl, neopentyl, n-hexyl. Groups having one or two carbon atoms or having two to seven carbon atoms are particularly preferred. Methyl and ethyl groups are very particularly preferred.
- thionitroso refers to a nitroso group linked to the aromatic cycle via a sulfur atom.
- halogen represents a chlorine atom or a bromine atom or an iodine atom or a fluorine atom.
- alkyloxy refers to an alkyl chain linked to the ring through an oxygen atom.
- the alkyl chain meets the definition previously stated.
- alkylthio refers to an alkyl chain linked to the aromatic ring via a sulfur atom (thioether bond).
- the alkyl chain meets the definition previously stated.
- R -H, -CH (CH 3 ) 2 1- [2-hydroxyphenyl] -3- [4-carboxydimethylmethyloxyphenyl] prop-2-en-1-one and 1- [2-hydroxyphenyl] -3- [ 4- / sopropyloxycarbonyldimethylmethyloxyphenyl] prop-2- en-1-one
- R -H, -CH (CH 3 ) 2 1- [2-methylcarbonyloxyphenyl] -3- [4-carboxydimethylmethyloxyphenyl] prop-2- en-1-one and 1- [2-methylcarbonyloxyphenyl] -3- [ 4- / sopropyloxycarbonyldimethyl methyloxyphenyl] prop-2-en-1-one:
- R -H, -CH (CH 3 ) 2
- R -H, -CH (CH 3 ) 2 1- [2-hydroxy-4-carboxydimethylmethyloxyphenyl] -3- [3,5-difer butyl-4-hydroxyphenyl] prop-2-en-1 -one, the 1 - [2-hydroxy-4-ethyloxycarbonyl dimethylmethyloxyphenyl] -3- [3,5-difet ⁇ butyl-4-hydroxyphenyl] prop-2-en-1 -one and 1- [2-hydroxy-4-ethoxycarbonyldimethylmethyloxyphenyl] -3 - [3_5-ditertiobutyl-4-hydroxyphenyl] prop-2-en-1-one:
- R -H, -CH (CH 3 ) 2 1- [2-hydroxy-4-chlorophenyl] -3- [3-carboxydimethylmethyloxy-4-hydroxy-5-tet ⁇ butylphenyI] prop-2-en-1-one and 1 - [2-hyd roxy-4-chlorophenyl ] -3- [3- / sopropyloxycarbonyldimethylmethyloxy-4-hydroxy-5-te / butylphenyl] prop-2-en-1- one:
- R -H, -CH (CH 3 ) 2 le 1 - [2-hydroxyphenyl] -3- [3-carboxydimethylmethyl-4-hydroxy-5-ter.butylphenyl] prop-2-en-1-one and the 1 - [2-hydroxyphenyl] -3- [3-
- R -H, -CH (CH 3 ) 2 1- [2-hydroxy-4-chlorophenyl] -3- [3-carboxydimethylmethyl-4-hydroxy-5-fe / tbutylphenyl] prop-2-en-1- one and 1- [2-hydroxy-4-chlorophenyl] -3- [3-
- R -H, -CH (CH 3 ) 2 1- [2-hydroxy-4-chlorophenyl] -3- [3,5-dimethoxy-4-carboxydimethylmethyl oxyphenyl] prop-2-en-1-one and the 1- [2-hydroxy-4-chlorophenyl] -3- [3,5-dimethoxy-4- / sopropyloxycarbonyldimethylmethyloxy phenyl] prop-2-en-1 -one:
- R -H, -CH (CH 3 ) 2 1- [2-hydroxyphenyl] -3- [3,5-dimethoxy-4-carboxydimethylmethyloxyphenyl] prop- 2-en-1-one and 1- [2- hydroxyphenyl] -3- [3,5-dimethoxy-4-
- R -H, -CH (CH 3 ) 2 1- [2-hydroxy-4-carboxydimethylmethyloxyphenyl] -3- [3,5-dimethoxy-4-hydroxyphenyl] prop-2-en-1-one and 1 - [2-hyd roxy-4-
- R -H, -CH (CH 3 ) 2 le 1 - [2-hydroxy-4-chlorophenylj- 3- [3,4-dihydroxy-5-carboxydimethylmethyloxyphenyl] prop-2-en-1-one and 1 - [2-hyd roxy-4-chlorophenyl] - 3- [3,4-dihydroxy-5- / sopropyloxycarbonyldimethylmethyloxyphenyl] - 2-propen-1-one:
- R -H, -CH (CH 3 ) 2 le 1 - [2-hyd roxy-4-carboxydimethylmethyloxyphenyl] - 3- [3,5-dimethyl-4-hydroxyphenyl] prop-2-en-1-one and the 1 - [2-hyd roxy-4- / sopropyloxycarbonyl dimethylmethyloxyphenyl] - 3- [3,5-dimethyl-4-hydroxyphenyl] prop-2-en-1-one:
- R -H, -CH (CH 3 ) 2 1- [2-hydroxy-4-chlorophenyl] -3- [3,5-dimethyl-4-carboxydimethylmethyl oxyphenyl] prop-2-en-1-one and the 1- [2-hydroxy-4-chlorophenyl] -3- [3,5-dimethyl-4- / sopropyloxycarbonyldimethylmethyloxy phenyl] prop-2-en-1-one (compound-15):
- R -H, -CH (CH 3 ) 2 and 1 - [2-hydroxyphenyl] -3- [3,5-dimethyl-4-carboxydimethylmethyloxyphenyI] prop- 2-en-1-one and 1- [2 -hydroxyphenyl] -3- [3,5-dimethyl-4- / sopropyloxycarbonyl dimethylmethyloxyphenyl] prop-2-en-1-one:
- R -H, -CH (CH 3 ) 2 and 1 - [2-hydroxyphenyl] -3- [3-carboxydimethylmethyloxyphenyl] prop-2-en-1 -one and 1 - [2-hyd roxyphenyl] -3 - [3- / sopropyloxycarbonyldimethylmethyloxyphenyl] prop-2-en-1 -one:
- R -H, -CH (CH 3 ) 2
- R -H, -CH (CH 3 ) 2 1- [2-mercapto-4-methyloxyphenyl] -3- [4-carboxydimethylmethyloxyphenyl] prop- 2-en-1-one and 1- [2-mercapto- 4-méthyloxyphényl] -3- [4-
- R -H, -CH (CH 3 ) 2 1- [4-heptylphenyl] -3- [3-methyl-4-carboxydimethylmethyloxyphenyl] prop-2-en-1- one and 1- [4-heptylphenyl] -3- [3-methyl-4-
- R -H, -CH (CH 3 ) 2 1- [2-hydroxy-4-carboxydimethylmethyloxyphenyl] -3- [3,5-dibromo-4-hydroxyphenyl] prop-2-en-1 -one, le 1 - [2-hydroxy-4-carboxydimethylmethyloxyphenyl] -3- [3-hydroxyphenyl] prop-2-en-1-one, le1- [2-hydroxy-4-carboxydimethylmethyloxyphenyl] -3- [4-methylthiophenyl] prop-2 - en-1-one, 1- [2-hydroxy-4-carboxydimethylmethyloxyphenyl] -3- [4-methylthiophenyl] prop-2- en-1-one 1 - [2,4-dihydroxyphenyl] -3- [4-carboxydimethylmethyloxyphenyl] prop-2-en-1 -one 1 - [2-hydroxyphenyl] -3- [4-carboxydimethylmethyloxyphenyl] prop-2-en
- the process of the present invention comprises bringing into contact in basic medium or in acid medium at least one compound of formula (A) with at least one compound of formula (B), the formulas (A) and (B) being :
- the contacting of these two compounds is advantageously carried out in a stoichiometric manner. It is preferably carried out at room temperature (between about 18 ° C and 25 ° C) and at atmospheric pressure.
- the reaction is preferably carried out in the presence of a strong base, such as an alkali metal hydroxide, such as sodium hydroxide or an alkali metal alcoholate such as sodium ethylate.
- a strong base such as an alkali metal hydroxide, such as sodium hydroxide or an alkali metal alcoholate such as sodium ethylate.
- reaction is preferably carried out in the presence of a strong acid, such as hydrochloric acid.
- the reaction scheme can be represented as follows:
- the synthesis in basic medium can be carried out as follows
- the ketone (compound (A)) at 1 molar equivalent and the aldehyde (compound (B)) at 1 molar equivalent are dissolved in a hydroalcoholic solution of sodium hydroxide at 20 molar equivalents. The whole is stirred for about 18 hours at room temperature (between 18 and 25 ° C). The medium is then acidified (to reach in particular a pH of around 2) in particular with hydrochloric acid.
- the expected substituted 1,3-diphenylprop-2-en-1-one can be obtained by precipitation or solid / liquid extraction after evaporation of the reaction medium. It can then be purified by chromatography on silica gel or by recrystallization.
- the synthesis in an acid medium can be carried out as follows:
- the ketone (compound (A)) at 1 molar equivalent and the aldehyde (compound (B)) at 1 molar equivalent are dissolved in an ethanol solution saturated with gaseous hydrochloric acid. The whole is stirred at room temperature for about 6 hours, the solvent is removed, in particular by evaporation under reduced pressure.
- the substituted 1,3-diphenylprop-2-en-1-one is purified, in particular by chromatography on silica gel.
- the process for preparing the compounds of formula (I) makes it possible to prepare compounds called below raw materials and intermediate compounds.
- the present invention also relates to certain raw materials and intermediate compounds obtained in the context of the present invention.
- These compounds are more particularly chosen from: Ie1 - [4-chlorophenyl] -3- [3,5-dimethyl-4-hydroxyphenyl] prop-2-en-1 -one (intermediate compound 1), 4-Ethyloxycarbonyl dimethylmethylthioketophenone (raw material12) 1 - [4-methylthiophenyl] -3- [3,5-dimethyl-4-hydroxyphenyljprop-2-en-1 -one
- Another subject of the present invention relates to any pharmaceutical composition
- any pharmaceutical composition comprising in a pharmaceutically acceptable carrier at least one compound of formula (I) as described above.
- the invention also relates to the use of a compound as defined above for the preparation of a pharmaceutical composition intended for the implementation of a method of treatment or prophylaxis of the human or animal body.
- the invention also relates to the use for the preparation of a pharmaceutical composition intended for the curative or preventive treatment of cerebrovascular pathologies and more particularly cerebral ischemia, of a compound of formula (I), including the compounds of general formula (I) in which: - Xi, X, X 3 and X simultaneously represent a hydrogen atom, X 6 represents an oxygen atom and i represents a group of formula -O- CR 8 R9-COOR ⁇ o, with R 8 and Rg, identical or different , represent an alkyl radical from C1 to C2, and R ⁇ represents a hydrogen atom or an alkyl radical from C1 to C7,
- Xi represents a halogen atom or a radical R1 or -G1 R1, where R1 represents an unsubstituted alkyl radical from C1 to C2 and G1 represents an atom of oxygen, X 6 represents an oxygen atom and X 4 represents a group of formula -O- CR11R12-COOR 1 0, with Ru and R ⁇ 2l identical or different, represent a hydrogen atom or an alkyl radical of C1 to C2, and R 10 represents a hydrogen atom or an alkyl radical from C1 to C7 and
- - X 2 represents a hydrogen atom and Xi represents -G1 R1 where G1 represents an oxygen atom and R1 represents CH2COOH.
- the invention also relates to a method of treatment of cerebrovascular pathologies and more particularly of cerebral ischemia, comprising the administration to a subject, in particular human, of an effective dose of a compound or of a pharmaceutical composition such as defined above, including the compounds of general formula (I) in which:
- X ⁇ represents an oxygen atom and represents a group of formula -O- CRsRg-COORio, with R 8 and Rg, identical or different, represent a alkyl radical from C1 to C2, and R ⁇ represents a hydrogen atom or an alkyl radical from C1 to C7,
- X2, Xs and X5 simultaneously represent a hydrogen atom
- Xi represents a halogen atom or a radical R1 or -G1R1, where R1 represents an unsubstituted alkyl radical from C1 to C2 and G1 represents an oxygen atom
- X 6 represents an oxygen atom
- X 4 represents a group of formula -O- CR11R 1 2-COOR10, with Ru and R12, identical or different, represent a hydrogen atom or an alkyl radical from C1 to C2, and R 10 represents a hydrogen atom or an alkyl radical from C1 to C7
- - X 2 represents a hydrogen atom and Xi represents -G1 R1 where G1 represents an oxygen atom and R1 represents CH2COOH.
- the method of treatment of cerebrovascular pathologies and more particularly of cerebral ischemia comprises the administration to a subject, in particular human, of an effective dose of a compound of formula (I) or of a composition.
- a compound of formula (I) or of a composition.
- pharmaceutical as defined above, excluding the compounds of general formula (I) in which:
- CR 8 Rg-COOR ⁇ o with R 8 and Rg, identical or different, represent an alkyl radical from C1 to C2, and R ⁇ represents a hydrogen atom or an alkyl radical from C1 to C7,
- Xi represents a halogen atom or an R1 or -G1 R1 radical, where R1 represents an unsubstituted alkyl radical from C1 to C2 and G1 represents an atom oxygen, X 6 represents an oxygen atom and X 4 represents a group of formula -O- CR11R12-COOR10, with Ru and R12, identical or different, represent a hydrogen atom or an alkyl radical from C1 to C2, and R 10 represents a hydrogen atom or an alkyl radical from C1 to C7, and
- - X2 represents a hydrogen atom and Xi represents -G1R1 where G1 represents an oxygen atom and R1 represents CH2COOH.
- compositions according to the invention advantageously comprise one or more excipients or vehicles, acceptable from the pharmaceutical point of view. Mention may be made, for example, of saline, physiological, isotonic, buffered solutions, etc., compatible with pharmaceutical use and known to those skilled in the art.
- the compositions may contain one or more agents or vehicles chosen from dispersants, solubilizers, stabilizers, preservatives, etc.
- Agents or vehicles usable in formulations are in particular methylcellulose, hydroxymethylcellulose, carboxymethylcellulose, polysorbate 80, mannitol, gelatin, lactose, vegetable oils, acacia, etc.
- compositions can be formulated in the form of an injectable suspension, gels, oils, tablets, suppositories, powders, capsules, capsules, etc., optionally by means of dosage forms or devices ensuring sustained and / or delayed release.
- an agent such as cellulose, carbonates or starches is advantageously used.
- the compounds or compositions according to the invention can be administered in different ways and in different forms.
- they can be injected orally or systemically, such as, for example, intravenously, intramuscularly, subcutaneously, trans-dermally, intra-arterially, etc.
- the compounds are generally packaged in the form of liquid suspensions, which can be injected using syringes or infusions, for example.
- the flow rate and / or the dose injected can be adapted by a person skilled in the art depending on the patient, the pathology, the mode of administration, etc.
- the compounds are administered at doses which may vary between 1 ⁇ g and 2g / administration, preferably from 0.1 mg to 1 g / administration.
- the administrations can be daily or repeated several times a day, if necessary.
- the compositions according to the invention can also comprise other agents or active principles.
- Figure 1-1, 1-2, 1-3 Evaluation of the antioxidant properties of compound 2, compound 3, compound 12, compound 14 and compound 17 on the oxidation of LDL by copper (Cu)
- Figure 1-2 shows the speed of diene formation according to the different treatments. Incubating the compounds with LDL in the presence of copper slows the rate of formation of conjugated dienes.
- the rate of formation of the conjugated dienes is 2 nmol / min / mg of LDL with copper alone, it is 1.7 nmol / min / mg of LDL when the LDL are incubated in the presence of the compound 17 to 10 ⁇ 4 M , this speed is not determined with the compound 2 to 10 " 4 M (not measurable because too low),
- Figure 1-3 shows the maximum amount of conjugated dienes formed over time. Incubation of LDL with copper leads to the formation of 348 nmol / mg of LDL from conjugated dienes, incubation with compound 2 to 10 "4 M reduces by 84% the formation of conjugated dienes (54.4 nmol / mg of LDL) This concentration is respectively 303 nmol / mg of LDL and 327 nmol / mg of LDL in the presence of compounds 3 and 17.
- Figure 1-5 shows the speed of diene formation according to the different treatments.
- the rate of formation of conjugated dienes is 1.6 nmol / min / mg of LDL with copper alone, it is 1.4 nmol / min / mg of LDL when the LDL are incubated in the presence of compounds 18 to 10 ⁇ 4 M and 1.3 nmol / min / mg of LDL when the LDL are incubated in the presence of compounds 22, this speed is not determined with the compound 21 at 10 ⁇ 4 M (not measurable because too low).
- Figure 1-6 shows the maximum amount of conjugated dienes formed over time. Incubation of LDL with copper results in the formation of 353 nmol / mg LDL from conjugated dienes. Incubation with compound 21 at 10 ⁇ 4 M inhibits the formation of conjugated dienes. In the presence of compounds 18, 19 and 22, it is respectively 305 nmol / mg of LDL, 345 nmol / mg of LDL and 345 nmol / mg LDL.
- Figures 1-7, 1-8 Evaluation of the antioxidant properties of compound 25 and compound 29 on the oxidation of LDL by copper (Cu)
- Figure 1-7 are shown the results of the experiment measuring the formation of conjugated dienes as a function of time. It can be observed that the incubation of LDL with the compounds tested at the concentration of 10 ⁇ 4 M delays the formation of conjugated dienes.
- the Lag-Phase is 82 minutes for copper alone while this delay in the appearance of conjugated dienes is respectively 120 and 135 minutes (from the experimental measurement) when the LDLs are incubated with compound 25 and with compound 29.
- Figure 1-8 shows the maximum amount of conjugated dienes formed over time. Incubation of LDL with copper results in the formation of 393 nmol / mg LDL from conjugated dienes. In the presence of compound 25 it is 378 nmol / mg of LDL.
- Figure 1-9 shows the results of the experiment measuring the formation of conjugated dienes as a function of time. It can be observed that the incubation of LDL with the compounds tested at the concentration of 10 ⁇ 4 M delays the formation of conjugated dienes. The Lag-Phase is 80 minutes for copper alone while this delay in the appearance of conjugated dienes is respectively
- Figure 1-10 shows the speed of diene formation according to the different treatments. Incubating the compounds with LDL in the presence of copper slows the rate of formation of conjugated dienes.
- the rate of formation of conjugated dienes is 1.9 nmol / min / mg of LDL with copper alone, it is 1.6 nmol / min / mg of LDL when the LDL are incubated in the presence of compounds 31 to 10 " 4 M and 0.8 nmol / min / mg of LDL when the LDL are incubated in the presence of compound 33 and 1.5 nmol / min / mg of LDL when the LDL are incubated in the presence of compound 35.
- Figure 1-11 shows the maximum amount of conjugated dienes formed over time.
- the incubation of LDL with copper leads to the formation of 298 nmol / mg of LDL from conjugated dienes, in the presence of compound 33 it is 257 nmol / mg of LDL.
- Figures 1-12, 1-13, 1-14 Evaluation of the antioxidant properties of compound 37, compound 38 and compound 41 on the oxidation of LDL by cuiyre (Cu)
- Figure 1-12 are shown the results of the experiment measuring the formation of conjugated dienes as a function of time. It can be observed that the incubation of LDL with the compounds tested at the concentration of 10 ⁇ 4 M delays the formation of conjugated dienes.
- the Lag-Phase is 120 minutes for copper alone while this delay in the appearance of conjugated dienes is respectively 196, 284 and 411 minutes (from the experimental measurement) when the LDLs are incubated with compound 37, compound 38 and compound 41.
- Figure 1-13 shows the speed of diene formation according to the different treatments. Incubating the compounds with LDL in the presence of copper slows the rate of formation of conjugated dienes.
- the rate of formation of the conjugated dienes is 1.8 nmol / min / mg of LDL with copper alone, it is 1.49 nmol / min / mg of LDL when the LDL are incubated in the presence of compounds 37 to 10 ⁇ M and 0.71 of LDL nmol / min / mg when the LDL are incubated in the presence of compounds 38 and 0.54 nmol / min / mg of LDL when the LDL are incubated in the presence of compounds 41.
- Figure 1-14 shows the maximum amount of conjugated dienes formed over time. Incubation of LDL with copper results in the formation of 372 nmol / mg LDL of conjugated dienes. In the presence of compounds 37, 38 and 41, it is respectively 338 nmol / mg of LDL, 244 nmol / mg of LDL and 71 nmol / mg of LDL.
- the delay in the formation of conjugated dienes, the decrease in the rate of formation of dienes and the decrease in the total amount of dienes formed are characteristic of antioxidant products.
- Figures 2-1, 2-2, 2-3, 2-4, 2-5, 2-6 Evaluation of the PPAR ⁇ agonist properties of the compounds according to the invention with the PPAR ⁇ / Gal4 transactivation system.
- the RK13 cells are incubated with different compounds at the following concentrations 10, 30 and 100 ⁇ M or 1, 10 and 100 ⁇ M for 24 hours.
- the results are represented by the induction factor (luminescent signal compared to the untreated cells) according to the different treatments. The higher the induction factor, the better the agonist property for PPAR ⁇ .
- Compound 23 has a maximum induction factor of 3.6 to 10 ⁇ M
- Compound 24 has a maximum induction factor of 11 to 10 ⁇ M.
- Compound 25 activates the system with factors between 7 and 21 depending on the concentrations tested.
- Compound 26 has a maximum induction factor of 7.8 for concentrations of 10 ⁇ M.
- compound 29 has induction factors of 28 and 25 for concentrations of 1 and 10 ⁇ M respectively.
- Figure 2-7 Evaluation of the PPAR ⁇ agonist properties of the compounds according to the invention with the PPAR ⁇ / Gal4 transactivation system.
- the RK13 cells are incubated with different compounds at the following concentrations 1, 10 and 100 ⁇ M for 24 hours.
- the results are represented by the induction factor (luminescent signal compared to the untreated cells) according to the different treatments.
- FIG. 3-1 shows the size of the infarct obtained with three groups of C57 black / 6 mice. Two of these groups of animals are treated by gavage with 200 mg per kg per day of compound 15 or 200 mg per kg per day of compound 42 for 14 days before occlusion. This figure shows that the size of the infarct in untreated animals is 37 mm3 while it is 24 mm3 for animals treated with compound 42 and 32 mm3 with compound 15.
- Figure 3-2 acute neuroprotection.
- Figure 3-2 shows the size of the infarct obtained with three groups of C57 black / 6 mice.
- the animals are treated with 200 mg per kg per day of compound 15 or 200 mg per kg per day of compound 42 for 72 hours after occlusion.
- This figure shows that the size of the total infarct corrected in untreated animals is 50 mm3 while it is 39 mm 3 for animals treated with compound 42 and 43 mm3 with compound 15.
- Figures 3-1 and 3-2 show the effectiveness of the compounds as neuroprotective compounds. They are active in prophylactic treatment and in treatment of the acute phase.
- the compounds of the invention are prepared according to the general methods described below.
- X1 OH, Cl, Br -SCH3, -OC6H13, -C7H15, OC (CH3) 2COOR6,
- X3 and X5 CH3, C (CH3) 3, OCH3,
- the ketone (1 eq) and the aldehyde (1 eq) are dissolved in an ethanol solution saturated with gaseous hydrochloric acid. The whole is stirred at room temperature for 6 hours then the solvent is removed by evaporation under reduced pressure. The 1,3-diphenylprop-2-en-1-one is purified by chromatography on silica gel.
- ketone (1 eq) and the aldehyde (1 eq) are dissolved in a hydroalcoholic solution of sodium hydroxide (20 eq). The whole is stirred for 18 hours at room temperature.
- 1,3-Diphenylprop-2-en-1-one is obtained by precipitation or liquid solid extraction after evaporation of the reaction medium. It is purified by chromatography on silica gel or by recrystallization.
- the sodium (1 eq) is dissolved in absolute ethanol.
- the ketone (1 eq) and the aldehyde (1 eq) are added.
- the whole is kept under stirring at room temperature for 12 hours then a 2N sodium hydroxide solution (5 eq) is added.
- the whole is maintained at 100 ° C for 12 hours.
- the reaction medium is acidified by addition of an aqueous solution of 6N hydrochloric acid.
- the solvent is removed by evaporation under reduced pressure.
- the residue is purified by chromatography on silica gel or by recrystallization.
- R6 CH2CH3
- X1 Cl, Br -SCH3, -OC6H13, -C7H15
- X2 H, 0 (2-phenyl-4-H-1-benzopyran-4-one), OCH3
- R6 CH2CH3, H
- the phenol (1 eq) is dissolved in acetonitrile, the halogen derivative (1 to 10 eq), then the potassium carbonate (5 eq) are added.
- the reaction medium is maintained for approximately 10 hours with vigorous stirring at reflux.
- the salts are removed by filtration, the solvent and the excess reagent are removed by evaporation under reduced pressure, the expected product is purified by chromatography on silica gel.
- the tert-butyl ester (1 eq) is dissolved in dichloromethane, trifluoroacetic acid (10 eq) is added, the whole is maintained for 12 hours with stirring at room temperature.
- the product formed is purified by chromatography on silica gel or by recrystallization.
- Raw material 1 2'-Hvdroxy-4 '- (ethoxycarbonyldimethylmethoxy) acetophenone
- This compound is synthesized from 2 ', 4'-dihydroxyacetophenone and ethyl bromoisobutyrate (1 eq) according to the general method 4 previously described.
- 3-chlorophenyl acetate (raw material 2) is mixed with aluminum chloride (3 eq). The mixture is heated for 1 hour at 200 ° C. The reaction medium is brought to ambient temperature and then poured into ice. The aqueous phase is extracted with methylene chloride which is dried over magnesium sulfate and then evaporated under reduced pressure.
- Raw material 4 4-Ethyloxycarbonyldiméthylméthyloxybenzaldoihvde
- This compound is synthesized from 4-hydroxyabenzaldehyde and ethyl bromoisobutyrate according to the general method 4 previously described. Purification by chromatography on silica gel (elution: cyclohexane-ethyl acetate: 9-1).
- This compound is synthesized from 3,5-dimethyloxy-4-hydroxyabenzaldehyde and ethyl bromoisobutyrate according to the general method 4 previously described.
- This compound is synthesized from 3,5-dimethyl-4-hydroxyabenzaldehyde and ethyl bromoisobutyrate according to the general method 4 previously described. Purification by chromatography on silica gel (elution: cyclohexane-ethyl acetate: 95-5).
- This compound is synthesized from 3-hydroxybenzaldehyde and ethyl bromoisobutyrate according to the general method 4 previously described.
- Raw material 8 4-Ethyloxycarbonyldimethylmethyl thiobenzaldéhvde
- the 4-methylthiobenzaldehyde (1 eq) is dissolved in methylene chloride, the solution is cooled to 0 ° C.
- the metachloroperbenzoic acid (1.5 eq) is added in small fractions. The progress of the reaction is monitored by thin layer chromatography. Any additional metachloroperbenzoic acid is added so as to obtain the complete disappearance of the starting product.
- the precipitate formed is removed by filtration. Hydroxide calcium (1.5 eq) is added. Agitation is continued for 15 min. The solid is removed by filtration, the filtrate is dried over magnesium sulfate and then the methylene chloride is removed by evaporation under reduced pressure.
- the evaporation residue is taken up in acetic anhydride, the whole is heated for 30 min at reflux and then evaporated to dryness.
- the residue is taken up in the methanol / triethylamine solution, stirred for 15 minutes at room temperature then the solvents are removed by evaporation under reduced pressure.
- the oily residue is taken up in a saturated aqueous solution of ammonium chloride and then extracted with methylene chloride. The organic phase is dried over magnesium sulfate and then evaporated under reduced pressure.
- the intermediate 4-mercaptobenzaldehyde thus obtained is used without further purification. It is alkylated according to general method 4 to give 4-ethyloxycarbonyldimethylmethylthiobenzaldehyde.
- Raw material 9 4'-Ethyloxycarbonyldimethylmethyloxyacetophenone:
- This compound is synthesized from 4'-hydroxyacetophenone and ethyl bromoisobutyrate according to the general method 4 previously described.
- Raw material 12 4'-Ethyloxycarbonyl dimethylmethylthioketophenone
- the 4'-methylthioacetophenone is dissolved in methylene chloride, the solution is cooled to 0 ° C.
- the metachloroperbenzoic acid (1.5 eq) is added in small fractions. The progress of the reaction is monitored by thin layer chromatography. Any additional metachloroperbenzoic acid is added so as to obtain the complete disappearance of the starting product.
- the precipitate formed is removed by filtration. Calcium hydroxide (1.5 eq) is added. Agitation is continued for 15 min. The solid is removed by filtration, the filtrate is dried over magnesium sulfate and then the methylene chloride is removed by evaporation under reduced pressure.
- the evaporation residue is taken up in acetic anhydride, the whole is heated for 30 min at reflux and then evaporated to dryness.
- the residue is taken up in the Methanol / Triethylamine solution, stirred for 15 min at room temperature then the solvents are removed by evaporation under reduced pressure.
- the oily residue is taken up in a saturated aqueous solution of ammonium chloride and then extracted with methylene chloride. The organic phase is dried over magnesium sulfate and then evaporated under reduced pressure.
- This compound is synthesized from 4-chloroacetophenone and 3,5-dimethyl-4-hydroxybenzaldehyde according to the general method 1 previously described.
- This compound is synthesized from 4'-methylthioacetophenone and 3,5-dimethyl-4-hydroxybenzaldehyde according to the general method 1 previously described.
- This compound is synthesized from 2'-methoxyacetophenone and from 3,5-dimethyl-4 hydroxybenzaldehyde according to the general method 1 previously described. Purification by chromatography on silica gel (cyclohexane-ethyl acetate: 8-2).
- This compound is synthesized from 4-hexyloxyacetophenone and 3,5-dimethyl-4-hydroxybenzaldehyde according to the general method 1 previously described.
- the expected compound precipitates from the reaction medium, it is drained and then used without further purification for the following reaction.
- This compound is synthesized from 4'-chloro-2'-hydroxyacetophenone (raw material 3) and 3,5-dimethyl-4-hydroxybenzaldehyde according to the general method 1 previously described.
- This compound is synthesized from 1- [2-hydroxy-4-chlorophenyl] -3- [3,5-dimethyl-4-hydroxyphenyl] prop-2-en-1-one (intermediate compound 5) according to the following method : 1- [2-hydroxy-4-chlorophenyl] -3- [3,5-dimethyl-4-hydroxyphenyl] prop-2- en-1-one is dissolved in dimethylsulfoxide, an iodine crystal is added, l the whole is maintained for 10 minutes at reflux.
- the reaction medium is brought to ambient temperature, hydrolysis.
- the precipitate is drained, rinsed with a sodium thiosulfate solution and then with water.
- This compound is synthesized from 4'-chloro-2'-methoxyacetophenone and 3,5-dimethyl-4-hydroxybenzaldehyde according to the general method 1 previously described.
- This compound is synthesized from 4'-bromoacetophenone and 3,5-dimethyl-4-hydroxybenzaldehyde according to the general method 1 previously described. Purification by chromatography on silica gel (cyclohexane-ethyl acetate: 85-15).
- This compound is synthesized from 4'-heptylacetophenone and 3,5-dimethyl-4-hydroxybenzaldehyde according to the general method 1 previously described.
- This compound is synthesized from 2'-Hydroxy-4'- (ethoxycarbonyldimethylmethoxy) acetophenone (raw material 1) and 3,5-ditertiobutyl-4-hydroxybenzaldehyde according to the general method 1 previously described. Purification by chromatography on silica gel (cyclohexane-ethyl acetate: 9-1).
- This compound is synthesized from 1- [2-hydroxy-4-ethoxycarbonyldimethylmethyloxyphenyl] -3- [3,5-ditertiobutyl-4-hydroxyphenyl] prop-2-en-1-one (compound 1) according to the following method:
- the ester is dissolved in ethanol, a 1N aqueous sodium hydroxide solution (5 eq) is added, the whole is kept at reflux for 10 hours.
- the medium is acidified by addition of hydrochloric acid (12N) and then extracted with ethyl acetate. organic phase is dried over magnesium sulfate and then evaporated under reduced pressure.
- This compound is synthesized from 2'-hydroxy-4'-chloroacetophenone and 4-ethyloxycarbonyldimethylmethyloxybenzaldehyde (raw material 9) according to the general method 2 previously described.
- This compound is synthesized from 2'-hydroxyacetophenone and 4-ethyloxycarbonyldimethylmethyloxybenzaldehyde (raw material 4) according to the general method 2 previously described.
- This compound is synthesized from 2'-hydroxyacetophenone and 3,5-dimethyloxy-4-ethyloxycarbonyldimethylmethyloxybenzaldehyde (raw material 5) according to the general method 2 previously described. Purification by chromatography on silica gel (elution: cyclohexane-ethyl acetate: 9-1).
- This compound is synthesized from 2'-hydroxy-4'-chloroacetophenone (raw material 3) and 3,5-dimethyloxy-4-ethyloxycarbonyldimethylmethyloxybenzaldehyde (raw material 5) according to the general method 2 previously described. Purification by chromatography on silica gel (elution: cyclohexane-ethyl acetate: 9-1).
- This compound is synthesized from 2'-hydroxy-4'-chloroacetophenone (raw material 3) and 3,5-dimethyl-4-ethyloxycarbonyldiméthyIméthyloxybenzaldéhyde according to (raw material 6) the general method 2 previously described. Purification by chromatography on silica gel (elution: cyclohexane-ethyl acetate: 9-1).
- This compound is synthesized from 2'-hydroxy-4'-ethyl oxycarbonyldimethylmethyloxyacetophenone (raw material 1) and 3,5-dibromo-4-hydroxybenzaldehyde according to the general method 2 previously described. Purification by chromatography on silica gel (elution: cyclohexane-ethyl acetate: 9-1).
- This compound is synthesized from 2'-hydroxyacetophenone and 3-ethyloxycarbonyldimethylmethyloxybenzaldehyde (raw material 7) according to the general method 2 previously described. Purification by chromatography on silica gel (elution: cyclohexane-ethyl acetate: 9-1).
- This compound is synthesized from 2'-hydroxy-4'-ethyloxycarbonyl dimethylmethyloxyacetophenone (raw material 1) and 3-hydroxybenzaldehyde according to the general method 2 previously described.
- This compound is synthesized from 2'-hydroxyacetophenone and 3,5-dimethyl-4-ethyloxycarbonyldimethylmethyIoxybenzaldehyde (raw material 6) according to the general method 2 previously described. Purification by chromatography on silica gel (elution: cyclohexane-ethyl acetate: 9-1) then by preparative HPLC (reverse phase RP18, licrospher 12 ⁇ m, elution: water - methanol - trifluoroacetic acid: 22-78-0.1).
- This compound is synthesized from 2'-hydroxy-4'-ethyloxycarbonyldimethylmethyloxyacetophenone (raw material 1) and 4-methylthiobenzaldehyde according to the general method 2 previously described.
- This compound is synthesized from 2 ', 4'-dihydroxyacetophenone and 4-ethoxycarbonyldimethylmethyloxybenzaldehyde (raw material 4) according to the general method 2 previously described.
- This compound is synthesized from 4'-hydroxyacetophenone and 4-ethoxycarbonyldimethylmethyloxybenzaldehyde (raw material 4) according to the general method 2 previously described. Purification by chromatography on silica gel (elution: cyclohexane-ethyl acetate: 9-1) then by preparative HPLC (reverse phase RP18, licrospher 12 ⁇ m, elution: water - methanol - trifluoroacetic acid: 34-66-0.1).
- This compound is synthesized from 1- [4-chlorophenyl] -3- [3,5-dimethyl-4-hydroxyphenyl] prop-2-en-1-one (intermediate compound 1) and isopropyl bromoisobutyrate according to the general method 4 previously described. Purification by chromatography on silica gel (elution: cyclohexane-ethyl acetate: 9-1)
- This compound is synthesized from 1- [4-chlorophenyl] -3- [3,5-dimethyl-4-hydroxyphenyl] prop-2-en-1-one (intermediate compound 1) and tert-butyl bromoisobutyrate according to the method general 4 previously described.
- This compound is synthesized from 1- [4-chlorophenyl] -3- [3,5-dimethyl-4-tert-butyloxycarbonyldimethylmethyloxyphenyl] prop-2-en-1 -one (compound 16) according to the general method 5 previously described.
- This compound is synthesized from 2'-hydroxy-4'-ethyloxycarbonyldimethylmethyloxyacetophenone (raw material 1) and 4-chlorobenzaldehyde according to the general method 2 previously described.
- This compound is synthesized from 2'-hydroxyacetophenone and ethyloxycarbonyldimethylmethylthiobenzaldehyde (raw material 8) according to the general method 2 previously described. Purification by chromatography on silica gel (elution: dichloromethane-methanol: 95-5) then by preparative HPLC (reverse phase RP18, licrospher 12 ⁇ m, elution: water - methanol - trifluoroacetic acid: 22-78-0.1).
- 1 H NMR DMSO ⁇ ppm: 1.44 (s, 6H), 6.99-7.05 (m, 1 H), 7.52 (d, J 8.1 Hz,
- This compound is synthesized from 4'-chloro-2'-hydroxyacetophenone (raw material 3) and 4-ethyloxycarbonyldimethylmethylthiobenzaldehyde
- This compound is synthesized from 4-ethyloxycarbonyldimethylmethyloxy acetophenone (raw material 9) and 3,5-dimethyl-4-hydroxybenzaldehyde according to the general method 2 previously described. Purification by chromatography on silica gel (elution: dichloromethane-methanol: 95-5) then by preparative HPLC (reverse phase RP18, licrospher 12 ⁇ m, elution: water - methanol - trifluoroacetic acid: 22-78-0.1).
- This compound is synthesized from 4'-methylthioacetophenone (raw material 12) and 4-ethyloxycarbonyldimethylmethyloxybenzaldehyde (raw material 9) according to the general method 2 previously described. Purification by chromatography on silica gel (elution: dichloromethane-methanol: 95-5) then by preparative HPLC (reverse phase RP18, licrospher 12 ⁇ m, elution: water - methanol - trifluoroacetic acid: 22-78-0.1).
- This compound is synthesized from 4-ethyloxycarbonyl dimethylmethyloxyacetophenone (raw material 9) and 4-chlorobenzaldehyde according to the general method 3 previously described.
- This compound is synthesized from 4-ethyloxycarbonyI dimethylmethylthiocetophenone (raw material 12) and 4- methylthiobenzaldehyde according to general method 3 previously described. Purification by chromatography on silica gel (elution: dichloromethane-methanol: 95-5) then by preparative HPLC (reverse phase RP18, licrospher 12 ⁇ m, elution: water - methanol - trifluoroacetic acid: 22-78-0.1).
- This compound is synthesized from 4'-ethyloxycarbonyldimethylmethyloxyacetophenone (raw material 9) and 4-methylthiobenzaldehyde according to the general method 2 previously described.
- This compound is synthesized from 1- [4-methylthiophenyl] -3- [3,5- dimethyl-4-hydroxyphenyl] prop-2-en-1-one (intermediate compound 2) and tert-butyl bromoisobutyrate according to the method general 4 previously described.
- This compound is synthesized from 1- [4-methylthiophenyl] -3- [3,5- dimethyl-4-hydroxyphenyl] prop-2-en-1-one (intermediate compound 2) and isopropyl bromoisobutyrate according to the general method 4 previously described.
- This compound is synthesized from 1- [4-methylthiophenyl] -3- [3,5-dimethyl-4-tertiobutyloxycarbonyldimethylmethyloxyphenyl] prop-2-en-1-one (compound 28) according to the general method 5 previously described.
- This compound is synthesized from 1- [2-methoxyphenyl] -3- [3,5-dimethyl 1-4-hydroxyphenyl] prop-2-en-1-one (intermediate compound 3) and tert-butyl bromoisobutyrate according to the general method 4 previously described.
- This compound is synthesized from 1- [2-methoxyphenyl] -3- [3,5-dimethyl-4-tertiobutyloxycarbonyldimethylmethyloxyphenyl] prop-2-en-1-one (compound 30) according to the general method 5 previously described. Purification by chromatography on silica gel (elution: dichloromethane-methanol: 98-2).
- This compound is synthesized from 1- [4-hexyloxyphenyl] -3- [3,5-dimethyl- 4-hydroxyphenyl] prop-2-en-1-one (intermediate compound 4) of tert-butyl bromoisobutyrate according to the general method 4 previously described.
- This compound is synthesized from 1- [4-hexyloxyphenyl] -3- [3,5-dimethyl-4-tertiobutyloxycarbonyldimethylmethyloxyphenyl] prop-2-en-1-one (compound 32) according to the general method 5 previously described.
- This compound is synthesized from 2- (3,5-dimethyl-4-hydroxyphenyl) -7- chloro-4H-1 -benzopyran-4-one (intermediate compound 6) and tert-butyl bromoisobutyrate according to general method 4 above described. Purification by precipitation in a mixture of dichloromethane / heptane solvents.
- This compound is synthesized from 2- (3,5-dimethyl-4-tert-butyloxycarbonyldimethylmethyloxyphenyl) -7-chloro-4H-1-benzopyran-4-one
- This compound is synthesized from 1- [2-methyloxy-4-chlorophenyl] -3- [3,5-dimethyl-4-hydroxydimethylmethyloxyphenyl] prop-2-en-1-one (intermediate compound 7) and bromoisobutyrate tert-butyl according to the general method
- This compound is synthesized from 1- [2-methoxy-4-chlorophenyl] -3- [3,5-dimethyl-4-tert-butyloxycarbonyldimethylmethyloxyphenyJ] prop-2-en-1 -one
- This compound is synthesized from 1- [4-heptylphenyl] -3- [3,5-dimethyl-4-hydroxyphenyl] prop-2-en-1-one (intermediate compound 9) and tert-butyl bromoisobutyrate according to the general method 4 previously described.
- This compound is synthesized from 1- [4-heptylphenyl] -3- [3,5-dimethyl-4-tertiobutyloxycarbonyIdimethylmethyloxyphenyl] prop-2-en-1-one (compound 38) and bromoisobutyrate according to the general method 4 previously described. Purification by chromatography on silica gel (elution: dichloromethane / methanol: 98-2)
- Compound 40 1-f4-bromophenvn-3-r3.5-dimethyl-4-tertiobutyloxycarbonyldimethylmethylo ⁇ yphénv ⁇ prop-2-en-1-one:
- This compound is synthesized from 1- [4-bromophenyl] -3- [3,5-dimethyl-4-hydroxyphenyl] prop-2-en-1-one (intermediate compound 8) and tert-butyl bromoisobutyrate according to the method general 4 previously described.
- This compound is synthesized from 1- [4-bromophenyl] -3- [3,5-dimethyl-4-tert-butyloxycarbonyldimethylmethyloxyphenyl] prop-2-en-1-one (compound 40) according to the general method 5 previously described.
- the compounds according to the invention, tested are the compounds whose preparation is described in the examples described above.
- LDL LDL
- the oxidation of LDL is an important modification and plays a predominant role in the establishment and development of atherosclerosis (Jurgens, Hoff et al. 1987).
- the following protocol makes it possible to demonstrate the antioxidant properties of the compounds.
- the reagents come from Sigma (St Quentin, France).
- the LDLs are prepared according to the method described by Lebeau et al. (Lebeau, Furman et al. 2000).
- EDTA is removed from the LDL preparation by dialysis.
- the oxidation then takes place at 30 ° C. by adding 100 ⁇ l of a solution with 16.6 ⁇ M of CuSO to 160 ⁇ L of LDL (125 ⁇ g of proteins / ml) and 20 ⁇ l of a solution of the compound to be tested.
- the formation of dienes, the species to be observed, is measured by optical density at 234 nm in the samples treated with the compounds but with or without copper.
- the optical density at 234 nm is measured every 10 minutes for 8 hours using a thermostated spectrophotometer (tecan Ultra 380). The analyzes are carried out in triplicate.
- the compounds have an antioxidant activity when they induce a lag phase lag, decrease the oxidation rate and the quantity of dienes formed compared to the control sample.
- the inventors demonstrate that the compounds according to the invention exhibit at least one of the antioxidant properties mentioned above, this indicating that the compounds according to the invention have an intrinsic antioxidant character.
- the compounds according to the invention tested are the compounds whose preparation is described in the examples described above.
- LDL oxidation is measured by the TBARS method. According to the same principle as that described above, the LDLs are oxidized with CuSO and the lipid peroxidation is determined as follows:
- TBARS are measured using a spectrophotometric method
- lipid hydroperoxidation is measured using peroxide-lipid oxidation dependent on iodide to iodine.
- MDA malondialdehyde
- Example 3 Measurement of the antioxidant properties of the compounds according to the invention on cell cultures
- the cell lines used for this type of experiment are of the neuronal, neuroblastoma (human) and PC12 (rat) cells type.
- PC12 cells were prepared from a rat pheochromocytoma and are characterized by Greene and Tischler (Greene and Tischler, 1976). These cells are commonly used for studies of neuronal differentiation, signal transduction and neuronal death.
- the PC12 cells are cultured as previously described (Farinelli, Park et al. 1996), in complete RPMI medium (Invitrogen) supplemented with 10% horse serum and 5% fetal calf serum. (Primary) cultures of endothelial cells and smooth muscles are also used. The cells are ordered from Promocell (Promocell GmBH, Heidelberg) and are cultured according to the supplier's instructions. *
- the cells are treated with different doses of compounds from 5 to 300 ⁇ M for 24 hours, the cells are then recovered and the increase in the expression of the target genes is evaluated by quantitative PCR. Measurement of ARMm:
- the mRNAs are extracted from cells in culture treated or not with the compounds according to the invention.
- the extraction is carried out using reagents from the Absolutely RNA RT-PCR miniprep Kit (Stratagene, France) according to the supplier's instructions.
- the mRNAs are then assayed by spectrometry and quantified by quantitative RT-PCR using the Light Cycler Fast start DNA Master Sybr Green I kit (Roche) on a Light Cycler System device (Roche, France).
- SOD Super Oxide Dismutase
- GPx Glutathione Peroxidase
- pairs of primers specific for the ⁇ -actin and cyclophilin genes are used as control probes.
- the antioxidant properties of the compounds are also evaluated using a fluorescent indicator, the oxidation of which is followed by the appearance of a fluorescent signal.
- the decrease in intensity of the fluorescent signal emitted is measured in the cells treated with the compounds in the following manner: the PC12 cells cultured as previously described (black plates 96 wells transparent backgrounds, Falcon) are incubated with increasing doses of H 2 O 2 (0.25 mM - 1 mM) in serum-free medium for 2 and 24 hours.
- DCFDA dichlorodihydrofluorescein diacetate
- the cells are then rinsed with PBS.
- the detection of the fluorescence emitted by the oxidation indicator is measured using a fluorimeter (Tecan Ultra 384) at an excitation wavelength of 495 nm and an emission wavelength of 535 nm. The results are expressed as a percentage of protection relative to the oxidized control.
- the fluorescence intensity is lower in the cells incubated with the compounds according to the invention than in the untreated cells.
- the protective effect of the compounds on lipid peroxidation on cell cultures is determined as follows: the different cell lines as well as the cells in primary culture are treated as above, the cell supernatant is recovered after treatment and the cells are lysed and recovered for the determination of the protein concentration.
- the detection of lipid peroxidation is determined as follows:
- Lipid peroxidation is measured using thiobarbituric acid (TBA) which reacts with lipoperoxidation of aldehydes such as malondialdehyde (MDA).
- TSA thiobarbituric acid
- MDA malondialdehyde
- the cell supernatant is collected (900 ⁇ l) and 90 ⁇ l of butylated hydroxytoluene are added thereto (Morliere, Moysan et al. 1991).
- a ml of a 0.375% TBA solution in 0.25M HCL containing 15% trichloroacetic acid is also added to the reaction media.
- the mixture is heated at 80 ° C for 15 min, cooled on ice and the organic phase is extracted with butanol.
- Shimazu 1501 (Shimadzu Corporation, Kyoto, Japan). TBARS are expressed in MDA equivalents using a standard tetraethoxypropane. The results are normalized with respect to the protein content. The reduction in lipid peroxidation observed in cells treated with the compounds according to the invention confirms the results obtained previously.
- the compounds according to the invention advantageously have intrinsic antioxidant properties which make it possible to slow down and / or inhibit the effects of oxidative stress.
- the inventors also show that the compounds according to the invention are capable of inducing the expression of the genes of antioxidant enzymes. These particular characteristics of the compounds according to the invention allow the cells to fight more effectively against oxidative stress and therefore to be protected from damage induced by free radicals.
- Example 4 Evaluation of the activation of PPARs in vitro by the compounds according to the invention
- the compounds according to the invention, having a carboxylic acid function, tested are the compounds whose preparation is described in the examples described above.
- the nuclear receptors belonging to the PPAR subfamily which are activated by two major classes of pharmaceutical compounds, fibrates and glitazones, which are widely used in human clinics for the treatment of dislipidemias and diabetes, play an important role in homeostasis. lipid and carbohydrate.
- the following experimental data show that the compounds according to the invention activate PPAR ⁇ and PPAR ⁇ in vitro.
- PPARs The activation of PPARs is evaluated in vitro in RK13 fibroblastic type lines by measuring the transcriptional activity of chimeras consisting of the DNA binding domain of the yeast transcription factor Gal4 and the ligand binding domain of different PPARs. These latter results are then confirmed in cell lines according to the following protocols:
- the RK13 cells come from ECACC (Porton Down, UK) and are cultured in DMEM medium supplemented with 10% vol / vol fetal calf serum, 100 U / ml penicillin (Gibco, Paisley, UK) and 2 mM L- Glutamine (Gibco, Paisley, UK).
- the culture medium is changed every two days.
- the cells are stored at 37 ° C. in a humid atmosphere containing 5% CO 2 and 95% air.
- the plasmids pG5TkpGL3, pRL-CMV, pGal4-hPPAR ⁇ , pGal4-hPPAR ⁇ and pGal4- ⁇ have been described by Raspe, Madsen et al. (1999).
- the constructs pGal4-mPPAR ⁇ and pGal4-hPPAR ⁇ were obtained by cloning into the vector pGal4- ⁇ DNA fragments amplified by PCR corresponding to the DEF domains of the human PPAR ⁇ and PPAR ⁇ nuclear receptors.
- the RK13 cells are seeded in 24-well culture dishes at a rate of 5 ⁇ 10 4 cells / well and are transfected for 2 hours with the reporter plasmid pG5TkpGL3 (50 ng / well), the expression vectors pGal4- ⁇ , pGal4- mPPAR ⁇ , pGal4-hPPAR ⁇ , pGal4-hPPAR ⁇ (100 ng / well) and the transfection efficiency control vector pRL-CMV (1 ng / well) according to the protocol described previously (Raspe, Madsen et al. 1999) and incubated for 36 hours with the test compounds.
- the cells are lysed (Gibco, Paisley, UK) and the luciferase activities are determined using the Dual-Luciferase TM Reporter Assay System assay kit (Promega, Madison, Wl, USA) according to the supplier's instructions as described above.
- the protein content of the cell extracts is then evaluated using the Bio-Rad Protein Assay assay kit (Bio-Rad, Munchen, Germany) according to the supplier's instructions.
- the inventors demonstrate an increase in luciferase activity in cells treated with the compounds according to the invention and transfected with the plasmid pGal4-hPPAR ⁇ . This induction of luciferase activity indicates that the compounds according to the invention are activators of PPAR ⁇ .
- FIGS. 2-1, 2-2, 2-3, 2-4, 2-5, 2-6 An example of results is given in FIGS. 2-1, 2-2, 2-3, 2-4, 2-5, 2-6 where the PPAR ⁇ activating properties of the compounds 3, 4, 7, 8, 9, 11 , 12, 13, 14, 17, 19, 20, 21, 22, 23, 24, 25, 26, 29, 31, 33, 37, 38, 41 according to the invention are illustrated.
- the inventors demonstrate an increase in luciferase activity in cells treated with the compounds according to the invention and transfected with the plasmid pGal4-hPPAR ⁇ . This induction of luciferase activity indicates that the compounds according to the invention are activators of PPAR ⁇ . Examples of results are shown in Figure 2-7 where the PPAR ⁇ activating properties of compounds 17, 33 and 29 are illustrated.
- the inflammatory response appears in many neurological disorders, such as multiple sclerosis, Alzheimer's and Parkinson's disease, cerebral ischemia and traumatic brain injuries, moreover inflammation is one of the important factors of neurodegeneration.
- One of the first reactions of glia cells to stroke is to release cytokines and free radicals.
- the consequence of this release of cytokines and free radicals is an inflammatory response in the brain which can lead to the death of neurons (Rothwell 1997).
- Cell lines and primary cells are grown as described above.
- LPS bacterial endotoxin
- Escherichia coli 0111: B4 (Sigma, France) is reconstituted in distilled water and stored at 4 ° C. the cells are treated with an LPS concentration of 1 ⁇ g / ml for 24 hours. To avoid interference with other factors, the cell culture medium is completely changed. TNF- ⁇ is an important factor in the inflammatory response to stress (oxidant for example).
- the culture medium for the stimulated cells is removed and the amount of TNF- ⁇ is evaluated with an ELISA-TNF- ⁇ kit (Immunotech, France ). The samples are diluted 50 times in order to be in line with the standard range (Chang, Hudson et al. 2000).
- the anti-inflammatory property of the compounds is characterized in the following way: the culture medium of the cells is completely changed and the cells are incubated with the compounds to be tested for 2 hours. After this incubation, LPS is added to the culture medium at a final concentration of 1 ⁇ g / ml. After 24 hours of incubation, the cell supernatant is recovered and stored at -80 ° C when it is not treated directly. The cells are lysed and the amount of protein is quantified, using the Bio-Rad Protein Assay assay kit (Bio-Rad, M ⁇ nchen, Germany) according to the supplier's instructions.
- Example 6 Evaluation of the neuroprotective effects of the compounds according to the invention in a model of cerebral ischemia-reperfusion
- mice C57 black / 6 (wild) mice were used for this experiment.
- the animals are kept under a 12 hour light / dark cycle at a temperature of 20 +/- 3 ° C. Animals have free access to water and food. Food gain and weight gain are recorded.
- the animals are treated by gavage with the compounds according to the invention (200 mg / kg / day) or the vehicle (0.5% carboxycellulose (CMC)), for 14 days before the induction of ischemia of the artery. cerebral mean.
- the animals were anesthetized using an intraperitoneal injection of 300 mg / kg of chloral hydrate.
- a rectal probe is placed and the body temperature is maintained at 37 +/- 0.5 ° C. Blood pressure is measured during the whole experiment.
- the right carotid is updated using a medial cervical incision.
- the pterygopalatine artery was ligated at its origin and an arteriomy is performed in the external carotid artery in order to slip a nylon monofilament into it.
- This filament is then gently advanced into the common carotid artery and then into the internal carotid artery in order to block the origin of the middle cerebral artery. After 1 hour, the filament is removed to allow reperfusion.
- mice The brains of the mice are frozen, crushed and reduced to powders then resuspended in a saline solution.
- the different enzymatic activities are then measured as described by the following authors: superoxide dismutase (Flohe and Otting 1984); glutathione peroxidase (Paglia and Valentine 1967); glutathione reductase (Spooner, Delides et al. 1981); glutathione-S-transferase (Habig and Jakoby 1981); catalase (Aebi 1984).
- the animals are anesthetized using an intraperitoneal injection of 300 mg / kg of chloral hydrate.
- a rectal probe is placed and the body temperature is maintained at 37 +/- 0.5 ° C. Blood pressure is measured during the whole experiment.
- the right carotid is updated using a medial cervical incision.
- the pterygopalatine artery was ligated at its origin and an arteriomy is performed in the external carotid artery in order to slip a nylon monofilament into it.
- This filament is then gently advanced into the common carotid artery and then into the internal carotid artery in order to close off the origin of the middle cerebral artery. After 1 hour, the filament is removed to allow reperfusion.
- 2 / animal treatment
- Animals having undergone prior ischemia-reperfusion are treated with the compounds according to the invention by the oral or systemic route one or more times after the reperfusion.
- the animals treated with the compounds according to the invention have damage to the brain level reduced compared to the untreated animals.
- the volume of the infarction is reduced when the compounds according to the invention are administered one or more times after ischemia-reperfusion.
- FIGS. 3-2 An example of results is given in FIGS. 3-2 where the neuroprotective properties in the acute phase of compounds 15 and 42 according to the invention are illustrated.
- the use of the compounds according to the invention in various experimental models shows that these new compounds have an intrinsic antioxidant activity, capable of delaying and reducing the effects of oxidative stress, in addition they also induce the expression of the genes of the enzymes. antioxidants which, combined with their antioxidant nature, strengthens anti-radical protections of cells in culture. Furthermore, the compounds according to the invention also have an anti-inflammatory power and the property of activating the nuclear receptor PPAR ⁇ .
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Priority Applications (17)
Application Number | Priority Date | Filing Date | Title |
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US10/520,079 US7943661B2 (en) | 2002-07-08 | 2003-07-08 | Substituted 1,3-diphenylprop-2-en-1-one derivatives and preparation and uses thereof |
BRPI0312398A BRPI0312398B8 (pt) | 2002-07-08 | 2003-07-08 | derivado de 1,3-difenilprop-2-en-1-ona substituído, processo de preparação de compostos, composição farmacêutica e utilização de pelo menos um derivado de 1,3-difenilprop-2-en-1-ona substituído |
AU2003264698A AU2003264698B2 (en) | 2002-07-08 | 2003-07-08 | Substituted 1,3-diphenylprop-2-en-1-one derivatives and preparation and uses thereof |
JP2004518890A JP4575771B2 (ja) | 2002-07-08 | 2003-07-08 | 置換1,3−ジフェニルプロパ−2−エン−1−オン誘導体、その調製及び使用 |
CA2490986A CA2490986C (fr) | 2002-07-08 | 2003-07-08 | Derives de 1,3-diphenylprop-2-en-1-one substitues, preparation et utilisations |
EP03762749A EP1525177B1 (fr) | 2002-07-08 | 2003-07-08 | Derives de 1,3-diphenylprop-2-en-1-one substitues, preparations et utilisations |
DE60314633T DE60314633T2 (de) | 2002-07-08 | 2003-07-08 | Substituierte 1,3-diphenylprop-2-en-1-on derivate, deren herstellung und anwendungen |
DK03762749T DK1525177T3 (da) | 2002-07-08 | 2003-07-08 | Substituerede 1,3-diphenylprop-2-en-1-on-derivater, fremstilling og anvendelse deraf |
MXPA05000427A MXPA05000427A (es) | 2002-07-08 | 2003-07-08 | Derivados de 1,3-difenil-prop-2-en-1-ona substituidos, preparacion y utilizacion. |
EA200500169A EA011090B1 (ru) | 2002-07-08 | 2003-07-08 | Замещенные производные 1,3-дифенилпроп-2-ен-1-она, получение и применение |
IL16569603A IL165696A0 (en) | 2002-07-08 | 2003-07-08 | Substituted 1,3-diphenykprop-2-en-1-one derivatives and preparation and uses thereof |
SI200330864T SI1525177T1 (sl) | 2002-07-08 | 2003-07-08 | Substituirani 1,3-difenilprop-2-en-1-on derivati,priprava in njihova uporaba |
NZ538051A NZ538051A (en) | 2002-07-08 | 2003-07-08 | Substituted 1,3-diphenylprop-2-en-1-one derivatives and preparation and uses thereof |
NO20045301A NO329700B1 (no) | 2002-07-08 | 2004-12-03 | Substituerte 1,3-diphenylprop-2-en-1-one derivat og farmasoytiskepreparater derav, samt fremgangsmate til fremstilling derav |
IL165696A IL165696A (en) | 2002-07-08 | 2004-12-09 | Transformed Derivatives of 3,1– DiphenylProph 2 - Ann – 1 – 1 Process of preparation and use in the preparation of pharmaceutical compositions |
US11/493,040 US7566737B2 (en) | 2002-07-08 | 2006-07-26 | Combinations of substituted 1,3-diphenylprop-2-en-1-one derivatives with other therapeutically active ingredients |
US13/083,659 US8058308B2 (en) | 2002-07-08 | 2011-04-11 | Substituted 1,3-diphenylprop-2-en-1-one derivatives, preparation and uses thereof |
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US13/083,659 Continuation US8058308B2 (en) | 2002-07-08 | 2011-04-11 | Substituted 1,3-diphenylprop-2-en-1-one derivatives, preparation and uses thereof |
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EP (1) | EP1525177B1 (fr) |
JP (1) | JP4575771B2 (fr) |
KR (1) | KR100974577B1 (fr) |
CN (1) | CN100548960C (fr) |
AT (1) | ATE365703T1 (fr) |
AU (1) | AU2003264698B2 (fr) |
BR (1) | BRPI0312398B8 (fr) |
CA (1) | CA2490986C (fr) |
CY (1) | CY1108085T1 (fr) |
DE (1) | DE60314633T2 (fr) |
DK (1) | DK1525177T3 (fr) |
EA (1) | EA011090B1 (fr) |
ES (1) | ES2287528T3 (fr) |
FR (1) | FR2841900B1 (fr) |
IL (2) | IL165696A0 (fr) |
MX (1) | MXPA05000427A (fr) |
NO (1) | NO329700B1 (fr) |
NZ (1) | NZ538051A (fr) |
PL (1) | PL207362B1 (fr) |
PT (1) | PT1525177E (fr) |
SI (1) | SI1525177T1 (fr) |
WO (1) | WO2004005233A1 (fr) |
ZA (1) | ZA200501082B (fr) |
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US7632870B2 (en) | 2002-07-08 | 2009-12-15 | Genfit | Composition based on substituted 1,3-diphenylprop-2-en-1-one derivatives, preparation and uses thereof |
WO2011064350A1 (fr) | 2009-11-26 | 2011-06-03 | Genfit | Utilisation de dérivés de 1,3-diphénylprop-2-èn-1-one pour le traitement de troubles hépatiques |
WO2011080276A1 (fr) | 2009-12-29 | 2011-07-07 | Genfit | Combinaisons pharmaceutiques comprenant un inhibiteur de dpp-4 et un dérivé de 1,3-diphénylprop-2-en-1-one |
WO2011144579A1 (fr) | 2010-05-17 | 2011-11-24 | Genfit | Procédé amélioré de préparation de dérivés de chalcone |
WO2013098374A1 (fr) | 2011-12-28 | 2013-07-04 | Genfit | Dérivés de 1,3-diphénylpropane, préparations et utilisations associées |
WO2014111584A1 (fr) | 2013-01-18 | 2014-07-24 | Genfit | Procédés de traitement de fibroses et de cancers |
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