WO1996001830A1 - Derives de silylmethyl-anilines, leurs procedes de fabrication et leur utilisation comme medicament - Google Patents
Derives de silylmethyl-anilines, leurs procedes de fabrication et leur utilisation comme medicament Download PDFInfo
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- WO1996001830A1 WO1996001830A1 PCT/FR1995/000916 FR9500916W WO9601830A1 WO 1996001830 A1 WO1996001830 A1 WO 1996001830A1 FR 9500916 W FR9500916 W FR 9500916W WO 9601830 A1 WO9601830 A1 WO 9601830A1
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- 0 C=C(*CC*1)C1=C Chemical compound C=C(*CC*1)C1=C 0.000 description 1
- SSDBBPWOGQXTDC-UHFFFAOYSA-O C[SH+](C)(CNc1cccc(CO)c1)c1ccccc1 Chemical compound C[SH+](C)(CNc1cccc(CO)c1)c1ccccc1 SSDBBPWOGQXTDC-UHFFFAOYSA-O 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/0803—Compounds with Si-C or Si-Si linkages
- C07F7/081—Compounds with Si-C or Si-Si linkages comprising at least one atom selected from the elements N, O, halogen, S, Se or Te
- C07F7/0812—Compounds with Si-C or Si-Si linkages comprising at least one atom selected from the elements N, O, halogen, S, Se or Te comprising a heterocyclic ring
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/0803—Compounds with Si-C or Si-Si linkages
- C07F7/0805—Compounds with Si-C or Si-Si linkages comprising only Si, C or H atoms
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/0803—Compounds with Si-C or Si-Si linkages
- C07F7/081—Compounds with Si-C or Si-Si linkages comprising at least one atom selected from the elements N, O, halogen, S, Se or Te
Definitions
- the present invention relates to silylmethyl-aniline derivatives, their methods of manufacture, the pharmaceutical compositions containing them and their use as medicaments.
- the generation of highly reactive oxygenated etabolites is an essential feature of many components of normal metabolism (generation of energy metabolism by the mitochondrial respiration chain, detoxification of xenobiotics by cytochromes, destruction of microorganisms by phagocytosis, and even ovulation and fertilization) .
- this local toxicity of free radicals and other toxic derivatives of oxygen constitutes a path common to numerous pathologies such as damage caused by radiotherapy, hyperoxygenation syndromes (for example neonatal bronchopulmonary dysplasia), inflammatory reactions (cf. GB Buckley, Surgery, 1 13, 479, 1993), autoimmune diseases, toxic damage during the post ischemic reperfusion phases (JY Arigou et al. Arch. Mal. Coeur, 86, 105- 109, 1993; N. Kaul et al. J. Pharmacol. Tox. Methods, 30, 55-67, 1993), reperfusion of organs including transplanted organs, carcinogenesis (cf. H. Sies, Ang. Chem. Int. .
- antioxidant derivatives or free radical scavengers can play a beneficial role in the prevention and / or treatment of the pathologies mentioned above.
- vitamin E or tocopherols, tocotrienols, vitamin C, b-carotene, flavonoids such as quercetin, probucol or even ebselen. H. Sies, "Oxidative stress", Académie Press, 1991; A. Ong, L. Packer, "Lipid-soluble antioxidants: biochemistry and clinical applications", Birkhauser, 1992; B. Halliwell, Drugs, 42, 569, 1991 ; M. Santrucek, J. Krepelka, Drugs of the future, 13, 974, 1988).
- Certain aromatic amines have also been characterized as antioxidants.
- aniline and certain of its derivatives have found utility in delaying the oxidative aging of rubbers or in protecting certain chemicals against polymerizations induced by oxidants and / or free radicals.
- many of these derivatives have not found therapeutic application because of their low antioxidant potential compared to their toxic side effects; diphenylphenylene diamine (DPPD) is thus able to protect the oxidation of rabbit LDL in vivo and thus to retard the progression of atheromatous plaques, but its use in human clinic is excluded because of its mutagenic properties. (CP Sparrow et al. J. Clin. Invest., 89, 1885-1891, 1992).
- the Applicant has now discovered new aromatic silylmethylamines which have interesting pharmacological and therapeutic properties since these derivatives behave like antioxidants capable of protecting biological systems such as tissues, membranes, cells, structural and / or functional proteins and lipids from attacks caused by free radicals and other toxic oxygen derivatives.
- the very good efficacy of the compounds of the invention as antioxidants ((in particular their capacity to protect human LDL against oxidative modifications induced by copper or endothelial cells and their capacity to trap hydroxyl radicals) associated with their easy and inexpensive access by chemical synthesis, their stability and their low toxicity, makes them valuable for the treatment of pathologies in which peroxidation plays an initiating and / or aggravating role.
- the subject of the present invention is the use as a medicine of aromatic silylmylamines which correspond to the general formula (I):
- R represents a hydrogen atom; an aromatic residue such as phenyl or naphthyl which can be variously substituted; an alkyl residue containing from 1 to 20 carbon atoms in a straight or branched chain which may contain one or more unsaturations; and / or functional groups such as alcohol, ether, thiol, thioether, halogen (fluorine, chlorine or bromine), ketone, ester, amino, amide, carbamate, carbonate, urea, nitrile, nitro, sulfone, sulfonamide.
- a and A ⁇ 2 identical or different, represent an aryl group chosen from the following aromatic residues:
- the broken bond represents a bond between the aromatic nucleus and the nitrogen atom of formula (I) when it is Ar ⁇ and a bond between the aromatic nucleus and the silicon atom when this is A ⁇ 2-
- R4, R5, R-5 and R7 may be in different positions (ortho, meta or para) on the aromatic ring to which they are attached, each representing a hydrogen atom, an aromatic residue (for example a phenyl which may be variously substituted), an alkyl radical containing 1 to 20 carbon atoms in a straight or branched chain [may contain one or more unsaturations and / or functional groups such as alcohol, ether, thiol, thioether, halogen (s), ketone, ester, amino, amide, carbonate, carbamate , urea, nitrile, nitro, sulfone, sulfonamide], a hydroxyl radical (OH), thiol (SH), alkoxy (ORg), acyloxy (OCORg), thioether (SR'g), trifluoromethyl (CF3), halogen (chlorine, fluorine, iodine or bromine), a triple bond variously substituted, a
- X and Y identical or different, each represent a CFb, an oxygen or sulfur atom or an NRI Q residue in which RI Q represents a hydrogen, an alkyl or aryl group.
- the compounds of formula (I) containing one or more asymmetric centers have isomeric forms.
- the racemates and pure enantiomers of these compounds are also part of this invention.
- the invention also includes the salts, solvates (for example hydrates) and bioprecursors of these compounds acceptable for therapeutic use.
- salts acceptable for the therapeutic use of the amines of formula (I) mention will be made of the salts formed by addition with organic or mineral acids, for example the hydrochlorides, hydrobromides, sulfates, sulfonates, fumarates, maleates, tartrates and succinates.
- organic or mineral acids for example the hydrochlorides, hydrobromides, sulfates, sulfonates, fumarates, maleates, tartrates and succinates.
- bioprecursors as used in the present invention applies to compounds of formula (I), but which, when administered to an animal or to a human being, are converted in the organism into a compound of formula
- the present invention describes a new class of antioxidants which differs from the prior art by their chemical structure since the derivatives forming part of the present invention are aromatic silyiamines which have never been described as being able to be useful for the treatment both curative as preventive of pathologies linked to oxidation or to the deleterious effects of free radicals.
- most of the compounds forming part of the present invention are represented by new molecules, the structure and the manufacturing process of which must also be considered as an integral part of the present invention.
- Ari represents a phenyl, an o-methyl-phenyl, an O-chlorophenyl, an o, p dichlorophenyl, an o-methoxy phenyl or an o (hydroxymethylphenyl) and simultaneously that R2 and R3 represent a methyl, and R ⁇ represents H, CH3, or C2H5, so Ar2 must be different from C 6 H 5 .
- the derivatives of general formula (I) are generally prepared by condensation of an aromatic amine of general formula (II):
- R3, R4 and Ar2 are described as above and Z represents a carrying group such as Cl, Br, I, OMs, OTs, OTf.
- Ari is defined as above with a halomethylsilane of formula (III) in the presence of a strong base such as for example n-butyllithium, sec-butyllithium, lithium diisopropylamide, sodium amide, in an anhydrous aprotic solvent such as tetrahydrofuran, ether, dimethoxyethane, optionally in the presence of DABCO, TMEDA or HMPT, at a temperature between - 78 ° and 20 ° C according to techniques and processes well known to those skilled in the art who, between other, indicate that it is often preferable to mix the strong base with the amine of formula (I) before introducing the halomethylethylsilane of formula (IIa); either indirectly, by initial condensation of a derivative of formula (Ilb):
- a strong base such as for example n-butyllithium, sec-butyllithium, lithium diisopropylamide, sodium amide
- a base such as for example sodium or potassium hydride in an anhydrous aprotic solvent such as tetrahydrofuran, or dimethylformamide at a temperature between - 20 ° C and 20 ° C followed by deprotection of the trifluoroacetamide thus formed by reaction with reagents well known for this type of transformation such as potassium hydroxide or sodium hydroxide in methanol at a temperature between 0 and 50 ° C or still the use of reducing agents such as for example lithium aluminum hydride in ether or tetrahydrofuran or sodium borohydride in an alcoholic solvent such as ethanol.
- a base such as for example sodium or potassium hydride in an anhydrous aprotic solvent such as tetrahydrofuran, or dimethylformamide
- reagents well known for this type of transformation such as potassium hydroxide or sodium hydroxide in methanol at a temperature between 0 and 50 ° C or still the use of reducing agents such as for example lithium aluminum
- a particularly preferred method for the preparation of derivatives of formula (I) in which R 1 represents an alkyl substituent which can be variously substituted consists in condensing an intermediate amide of general formula (Ile)
- R ′ represents a protective group such as formamidine (cf. AI Meyer, S. Hellering, Tetrahedron Lett., 22, 5119, 1981) with a strong base such as for example butyllithium secondary in tetrahydrofuran or ether in the presence of TMEDA and then to condense the organolithium thus formed with a halogenosilane of general formula (V):
- the derivatives of the present invention can also be prepared by reaction of an aromatic amine of general structure (VI):
- R2 is described as above and M represents Li, Na, K, MgCl, MgBr or Mgl according to a method previously described for the preparation of trimethysilylmethyl-aniline (Cfr. J. Eisch, CS Chiv, J. Organomet. Chem. 358 , C1-C5, 1988).
- Silylated intermediates of structure (III), (V) or (VII) are available or prepared by techniques and methods well known in the chemistry of organosilylates and are described in "Silicon reagents in organic synthesis” (EW Calvin, Académie Press, 1988), “The chemistry of organic silicon compounds” (S. Pata ⁇ , Z. Rappoport, J. Wiley, 1989) and “Silicon reagents for organic synthesis” (WP Weber, Springer Verlag, 1983).
- a compound according to the invention in the form of a salt, for example in the form of a salt formed by addition with an acid
- this can be achieved by treating the free base of general formula (I) with an appropriate acid, preferably in equivalent amount, or by creatinine sulfate in an appropriate solvent.
- the new compounds of general formula (I) When the new compounds of general formula (I) have one or more asymmetric centers, they can be prepared in the form of a racemic mixture or in the form of enantiomers, either by enantioselective synthesis or by resolution.
- the compounds of formula (I) having at least one asymmetric center can for example be separated into their enantiomers by the usual techniques such as the formation of diastereomeric pairs by formation of a salt with an optically active acid such as the acid (- ) di-p-toluoyl-1-tartaric, (+) di-p-toluoyl-tartaric acid, (+) camphor sulfonic acid, (-) camphor sulfonic acid, (+) phenylpropionic acid , (-) phenylpropionic acid, followed by fractional crystallization and regeneration of the free base.
- an optically active acid such as the acid (- ) di-p-toluoyl-1-
- the compounds of formula (I) can be purified by the usual methods, for example by crystallization (in particular when the compounds of formula (I) are isolated in the form of salt), chromatography or extraction.
- Acetic anhydride (26 g, 130 mmol) is added slowly to a solution of aniline (9.3 g; 100 mmol) and triethylamine (15, 15 g; 150 mmol) in 125 ml of anhydrous dichloromethane at 0 ° vs. After 3 hours at 20 ° C., the reaction medium is diluted with dichloromethane (300 ml) and washed with a 1N hydrochloric acid solution, then three times with 350 ml of a saturated aqueous solution of sodium chloride. The organic phase is dried over magnesium sulfate, filtered and evaporated. The solid obtained is purified by chromatography on a silica column to give 12.15 g of N-acetyl aniline.
- Step B Preparation of phenylI-dimethyl-silyP-methyll acetyl-phenylamine (ÎB
- a solution of N-acetyl aniline (12 g; 89 mmol) in 100 ml of anhydrous dimethyl formamide is added dropwise to a suspension of sodium hydride (106 mmol; 4.24 g of a 60% suspension in the oil which is washed beforehand with dry hexane) in 100 ml of DMF at 0 ° C.
- the reaction medium is stirred for 1 hour at 20 ° C then the chloromethyl phenyl dimethyl-silane (25 g; 135 mmol) is added to the reaction medium which is stirred at 90 ° C for 16 hours, then brought back to 20 ° C and diluted with 500 ml of ether and washed with water.
- the organic phase is dried over magnesium sulfate, filtered and evaporated.
- the derivative (3) was prepared according to the procedures described in Example 1 but using chloromethyl- [(4-methylthio-phenyl) dimethyl] -silane in step B.
- the derivative 4 is prepared according to the procedures described in Example 1 but using the cMoromémyl - [(4-dimémyla ⁇ nmo-phenyl) -diméthyl] -silane in step B.
- the derivative (5) is prepared according to the procedures described in Example 1 but using chloromethyl [(4-trifluoromethyl-phenyl) -dimethyl] -silane in step B.
- the derivative (6) is prepared according to the procedures described in Example 1 but using 4-trifluoromethyl-aniline in place of the aniline in the step
- the derivative (7) was prepared according to the procedures described in Example 1 but using 3-methoxy-aniline instead of aniline in step A.
- the derivative (9) was prepared according to the method described in Example 1 except that in step A, the acetic anhydride is replaced by formic anhydride and that in step B, the the electrophile used is choromethyl - [(2-ethylphenyl) -dimethyl] -silane.
- the derivative (10) is prepared according to the method described in Example 1 except that, in step A, 3-ethyl-aniline replaces aniline, formic anhydride replaces acetic anhydride and in step B, the electrophile used is chloromethyl [- (4-methyl-phenyl) -dimethyl] -silane.
- Compound J_l is prepared according to the method described in Example 1 except that acetic anhydride is replaced by formic anhydride and the aniline is replaced by 1-naphthamine in step A.
- Compound J12 is prepared by condensation of 8-quinoIinyl-formamide with chloromethyl- (phenyl-dimethyl) -silane followed by reduction of the amide according to the methods described as steps B and C in Example 1.
- the derivative J is prepared from 3-methyl-aniline, trifluoroacetic anhydride and chloromethyl- (phenyl-dimethyl) -silane according to the method described in Example 13.
- Compound 15 is prepared by condensation of 4-bromo-aniline with trifluoroacetic anhydride then with chloromethyl (phenyl-dimethyl) - silane followed by deprotection using lithium aluminum hydride according to the procedures described in Example 1.
- Compound 16 is prepared by condensation of 3-cyanoaniline successively with trifluoroacetic anhydride and chloromethyl (phenyl-dimethyl) -silane according to the procedures described in steps A and B of Example 1, followed by deprotection with level of the trifluoroanilide thus formed by sodium borohydride in absolute ethanol at 20 ° C for 4 hours.
- Derivative 18 was prepared by initial condensation of 3- (formyl) -N- (trifluoroacetyl) -aniline with chloromethyl- (dimethyl-phenyl) -silane (according to the procedure used in step B of Example 1 ) followed by the reaction of the intermediate thus formed with an excess of sodium borohydride in methanol.
- nitrile 16 15 g, 41.4 mmol
- DiBAl-H Aldrich, 1.0 M in toluene, 83 ml, 124.3 mmol , 3éq.
- the resulting solution is stirred for 3 hours at 19 room temperature.
- 30 ml of 5N hydrochloric acid are then added and the medium is vigorously stirred for approximately 2 hours.
- the aqueous phase is brought back to basic pH with concentrated sodium hydroxide and then extracted with ethyl acetate.
- the organic phase is then washed with water and then dried over magnesium sulfate, filtered and evaporated.
- the oil obtained (9.8 g; 88%) is sufficiently pure to be directly usable without further purification.
- Flash purification of the oil obtained on a silica column makes it possible to obtain, in the majority fraction, the expected product in the form of a light yellow oil (300 mg; 27%).
- Derivative 20 is prepared by condensation of N- (trifluoroacetyl) -2-naphthylamine with chloromethyl- (dimethyl-phenyl) -silane (according to the procedure described in step B of Example 1) followed by deprotection of the intermediary thus formed with alcoholic potash.
- IR (Film, cm-1) 3414; 3050; 2960; 2802; 1630; 1523; 1250; 833.
- Compound 2! is prepared by condensation of 4- (phenyl) -N- (trifluoroacetyl) -aniline with chloromethyl- (phenyl-dimethyl) -silane according to the procedure described in step B of Example 1, followed by deprotection of aniline by reaction with sodium borohydride at 20 ° C in ethanol.
- IR (Film, cm-1) 3414; 3050; 2960; 2802; 1630; 1523; 1250; 833.
- Derivative 22 is prepared according to the same procedure as derivative 21 but using chloromethyl- (4-bromo ⁇ henyl) -dimethyl-silane as starting material.
- EXAMPLE 23 is prepared according to the same procedure as derivative 21 but using chloromethyl- (4-bromo ⁇ henyl) -dimethyl-silane as starting material.
- Derivative 23 is prepared by alkylation of 3-vinyl-N- (trifluoroacetyl) -aniline with chloromethyl-phenyl-dimethyl-silane according to the procedure described in step B of Example 1, followed by deprotection of the aniline by reaction with lithium aluminum hydride in ether.
- Derivative 24 is obtained by condensation of 3- (oxazol-4-yl) -N- (trifluoroacetyl) -aniline with chloromethyl-phenyl-dimethyl-silane according to the procedure described in step B of Example 1 followed deprotection of aniline by reaction with sodium borohydride in ethanol at 20 ° C.
- Compound 25 is prepared by condensation of N- (trifluoroacetyl) -6-aminoquinoline with chloromethyl-dimethyl-phenyl-silane according to the procedure described in step B of Example 1, followed by deprotection of the amine by reaction with sodium borohydride in ethanol at 20 ° C.
- Compound 26 is prepared by condensation of the amino N- (trifluoroacety) -6-benzothiazolyl with chloromethyl-dimethyl-phenyl-silane according to the procedure described in step B of Example 1, followed by deprotection of the amine by reaction with sodium borohydride in ethanol at 20 ° C.
- n-butyllithium (62.5 ml of a 1.6 M solution in hexane, ie 100 mmol) is added dropwise to a solution of 4 methoxyaniline (11.07 g; 90 mmol) in 100 ml of anhydrous tetrahydrofuran at 0 ° C under an argon atmosphere.
- the reaction medium is stirred for 1 hour at 20 ° C. then 25 g of coromethyl-dimethyl-phenyl-silane dissolved in 100 ml of tetrahydrofuran are introduced into the reaction medium which is stirred for 20 hours at 60 ° C.
- reaction medium is brought to 20 ° C., diluted in ethyl ether (300 ml) and washed with water, then three times with a saturated aqueous NaCl solution.
- the organic phase is dried over magnesium sulfate, filtered and concentrated under reduced pressure.
- the residue is distilled (145-150 ° C / 0.5 mm Hg) to give the product 27 (22 g; 90%).
- Derivative 29 is prepared from N- (3-methyl-phenyl) -aniline and chloromethyl- (dimethyl-phenyl) -silane according to the procedure described in Example 27.
- Compound 30 is prepared from 4-methyl-aniline and chloromethyl- (dimethyl-phenyl) -silane according to the procedure described in Example 27.
- Compound 3_1 is prepared from 2-methyl aniline and chloromethyl-dimethyl- (4-methyl-phenyl) -silane according to the experimental procedure described in Example 27.
- Compound 32 is prepared by condensation of 3-methyl-aniline with cluoromemyl- (2,6-dimethyl-phenyl) -dimethyl-silane according to the experimental procedure described in Example 27.
- Derivative 34 is prepared from 3-methyl aniline and chloromethyl- (3-methoxy-phenyl) -dimethyl-silane according to the experimental procedure described in Example 27.
- Derivative 35 is prepared by condensation of aniline with chloromethyl- (3-naphthyl) -dimethyl-silane according to the experimental procedure described in Example 27.
- Compound 36 is prepared by condensation of 4-tertiobutyl-aniline with chloromethyl-dimethyl-phenyl-silane according to the experimental procedure described in Example 27.
- Compound 38 is prepared by condensation of 3-methyl-aniline with chloromethyl-methyl-propyl-phenyl-silane according to the experimental procedure described in Example 27.
- the antioxidant activity of the derivatives of the present invention has been more particularly demonstrated on microsomes of rat livers, following a chemical peroxidation induced by ferric ions and on human LDL.
- the inhibitory action of the compounds of the present invention with respect to the oxidation of human LDL has been demonstrated whether it is following a chemical oxidation by copper sulphate or following a biological oxidation by human endothelial cells from umbilical veins.
- Endothelial cells, line ECV304 (ATCC CRL-1998) are cultured in wells 35 mm in diameter in DMEM-HEPES-Glutamax I medium supplemented with 10% fetal calf serum, penicillin-streptomycin 100 IU / ml - 100 ⁇ g / ml, and fungizone 2.5 ⁇ g / ml to a sub-confluent state.
- the cells are then incubated for 24 hours in DMEM-HEPES-Glutamax I medium containing ultroser G 2%; then, the oxidation of LDL is triggered by their contact with the cells for 24 hours in the HAM F-10 nutritive medium (Breugnot C, Maziere C, Salmon S., Auclair M., Santus R., Morliere P., Lenaers A. and Mazière JC: Phenothiazines inhibits copper and endothelial cell-induced peroxidation of low density lipoprotein. A comparative study with probucol, butylated hydroxytoluene and vitamin E. Biochemical Pharmacology, 1990, 40: 1975-1980).
- the samples are heated for 30 minutes at 95 ° C., the TBARs are extracted with butanol-1 and quantified by fluorimetry (excitation wavelengths 515 nm, emission 548 nm, Perkin Elmer LS-50B spectrofluorimeter). The results are expressed in nmol malondialdehyde equivalent / mg LDL proteins.
- the antioxidant activity of the compounds of the present invention in this model was studied in comparison with vitamin E. As the few illustrative examples shown in the table below show, the compounds of the present invention have been shown to be superior to the vitamin E in this test.
- lipids such as human microsomes or LDL against oxidative modifications and in particular during biological oxidation mediated by human endothelial cells.
- the antioxidant properties, in particular at the LDL level, of the derivatives of the present invention allow their use as medicaments in the treatment and / or prevention of atherosclerosis including its various peripheral vascular localizations, coronary or cerebral, diseases due vascular complications linked to lipoproteins, but also pathologies in which a membrane lipid peroxidation plays an initiating and / or aggravating role such as ischemic heart disease, organ reperfusion, including transplant, traumatic ischemic pathologies of the central nervous system or peripheral, autoimmune diseases and metabolic diseases such as diabetes, and in general all dyslipidemias.
- the derivatives of the present invention have been shown to be particularly effective in neutralizing hydroxyl radicals (OH): this is how, in a test making it possible to determine the ability of compounds to trap the hydroxyl radical (method using the assay of the radical 2-hydroxy-5,5 dimethyl-1-pyrroline-N-oxide by RPE according to Miyagawa et al., J. Clin.
- Example 13 38 Hydroxyl radicals constitute a source of extremely aggressive radicals at the cellular and molecular levels, and therefore the compounds of the present invention which have the advantage of being both inhibitors of lipid peroxidation and free radical trappers are also found. their usefulness for the treatment and / or prevention of acute or chronic inflammatory diseases, as well as in dermatology and dermo-cosmetology and in the treatment of various pathologies such as certain forms of cancer (in particular tumors linked to ionizing radiation such as than certain skin cancers), tissue aging (especially skin aging), and certain forms of degeneration such as Parkinson's or Alzheimer's disease.
- various antioxidants such as vitamin E have shown a protective effect in a model of MPTP-induced neurotoxicity (cf. TL Pe ⁇ y et al, Neurosc. Letters, 60, 109, 1985) model considered to be predictive of neuro diseases - degenerative (cf. Neuroscience Facts, 3 (23), 89, 1992).
- the present invention also relates to pharmaceutical compositions containing as active ingredient a compound of general formula I or one of its acceptable salts for pharmaceutical use, mixed or associated with a suitable excipient.
- These compositions can take, for example, the form of solid, liquid compositions, emulsions, lotions or creams.
- compositions for oral administration tablets, pills, powders (gelatin capsules, cachets) or granules can be used.
- the active principle according to the invention is mixed with one or more inert diluents, such as starch, cellulose, sucrose, lactose or silica, under a stream of argon.
- inert diluents such as starch, cellulose, sucrose, lactose or silica
- These compositions can also comprise substances other than diluents, for example one or more lubricants such as magnesium stearate or talc, a dye, a coating (dragees) or a varnish.
- compositions for oral administration there may be used pharmaceutically acceptable solutions, suspensions, emulsions, syrups and elixirs containing inert diluents such as water, ethanol, glycerol, vegetable oils or oil paraffin.
- inert diluents such as water, ethanol, glycerol, vegetable oils or oil paraffin.
- These compositions can include substances other than diluents, for example wetting, sweetening, thickening, flavoring or stabilizing products.
- the sterile compositions for parenteral administration can preferably be aqueous or non-aqueous solutions, suspensions or emulsions.
- solvent or vehicle water, propylene glycol, polyethylene glycol, vegetable oils, in particular olive oil, injectable organic esters, for example ethyl oleate or other suitable organic solvents.
- These compositions can also contain adjuvants, in particular wetting agents, isotonizers, emulsifiers, dispersants and stabilizers.
- Sterilization can be done in several ways, for example by aseptic filtration, by incorporating sterilizing agents into the composition, by irradiation or by heating. They can also be prepared in the form of sterile solid compositions which can be dissolved at the time of use in sterile water or any other sterile injectable medium.
- compositions for rectal administration are suppositories or rectal capsules which contain, in addition to the active product, excipients such as cocoa butter, semi-synthetic glycerides or polyethylene glycols.
- compositions for topical administration can be, for example, creams, lotions, eye drops, mouthwashes, nasal drops or aerosols.
- the doses depend on the desired effect, on the duration of the treatment and on the route of administration used; they are generally between 0.001 g and 1 g (preferably between 0.005 g and 0.25 g) per day, preferably orally for an adult with unit doses ranging from 0.1 mg to 500 mg of active substance, preferably from 1 mg to 50 mg. In general, the doctor will determine the appropriate dosage based on age, weight and all other factors specific to the subject to be treated.
- the following examples illustrate compositions according to the invention [in these examples, the term "active component designates one or more (generally one) of the compounds of formula (I) according to the present invention]:
- They can be prepared by direct compression or by passing through wet granulation.
- the direct compression procedure is preferred, but it may not be suitable in all cases depending on the doses and the physical properties of the active component.
- the active component is passed through a sieve with a mesh opening of 250 ⁇ m on a side, it is mixed with the excipients and it is compressed using 6.0 mm punches. Tablets with other mechanical strengths can be prepared by varying the compression weight with the use of appropriate punches.
- the active component is passed through a sieve with a mesh opening of 250 ⁇ m and mixed with lactose, starch and pregelatinized starch.
- the mixed powders are moistened with purified water, they are granulated, dried, sieved and mixed with magnesium stearate.
- the lubricated granules are put into tablets as for the formulas by
- a coating film can be applied to the tablets using suitable film-forming materials, for example methylcellulose or hydroxypropyl methylcellulose, according to conventional techniques. Sugar tablets can also be coated.
- the active component is passed through a sieve with a mesh opening of 250 ⁇ m and mixed with the other substances.
- the mixture is introduced into hard gelatin capsules No. 2 on an appropriate filling machine.
- Other dosage units can be prepared by changing the filling weight and, if necessary, changing the size of the capsule.
- the active component, the buffer, the flavor, the color and the preservative are dissolved in part of the water and the glycerin is added. The remainder of the water is heated to 80 ° C. and the sucrose is dissolved therein and then cooled. The two solutions are combined, the volume is adjusted and mixed. The syrup obtained is clarified by filtration.
- Witepsol H15 supplement to 1.0 g * Brand marketed for Adeps Solidus of the European Pharmacopoeia.
- a suspension of the active component in Witepsol H 15 is prepared and introduced into a suitable machine with 1 g suppository molds.
- Sodium chloride can be added to adjust the tone of the solution and adjust the pH to maximum stability and / or to facilitate the dissolution of the active component by means of a dilute acid or alkali or by adding buffer salts. appropriate.
- the solution is prepared, clarified and introduced into suitable size vials which are sealed by melting the glass.
- the liquid for injection can also be sterilized by heating in an autoclave according to one of the acceptable cycles.
- the solution can also be sterilized by filtration and introduced into a sterile ampoule under aseptic conditions.
- the solution can be introduced into the ampoules in a gaseous atmosphere.
- the active component is micronized in a fluid energy mill and made into fine particles before mixing with lactose for tablets in a high energy mixer.
- the powder mixture is introduced into hard gelatin capsules No. 3 on an appropriate encapsulating machine.
- the contents of the cartridges are administered using a powder inhaler.
- Pressure aerosol with metering valve mg / dose for 1 can of micronized active ingredient 0.500 120 mg oleic acid Codex 0.050 12 mg trichlorofluoromethane for pharmaceutical use 22.25 5.34 g
- dichlorodifluoromethane for pharmaceutical use 60.90 14.62 g
- the active component is micronized in a fluid energy mill and placed in the form of fine particles.
- the oleic acid is mixed with the trichlorofluoromethane at a temperature of 10-1 ° C. and the micronized drug is introduced into the solution using a mixer with a high shearing effect.
- the suspension is introduced in measured quantity into aluminum aerosol cans on which are fixed appropriate metering valves delivering a dose of 85 mg of the suspension; dichlorodifluoromethane is introduced into the boxes by injection through the valves.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU29309/95A AU2930995A (en) | 1994-07-08 | 1995-07-07 | Silylmethyl-aniline derivatives, methods of preparation and use thereof as drugs |
| EP95925028A EP0770084A1 (fr) | 1994-07-08 | 1995-07-07 | Derives de silylmethyl-anilines, leurs procedes de fabrication et leur utilisation comme medicament |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR94/08468 | 1994-07-08 | ||
| FR9408468A FR2722198B1 (fr) | 1994-07-08 | 1994-07-08 | 1derives de silylmethyl-anilines, le2fabrication, et leur utilisation co |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1996001830A1 true WO1996001830A1 (fr) | 1996-01-25 |
Family
ID=9465173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1995/000916 Ceased WO1996001830A1 (fr) | 1994-07-08 | 1995-07-07 | Derives de silylmethyl-anilines, leurs procedes de fabrication et leur utilisation comme medicament |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0770084A1 (fr) |
| AU (1) | AU2930995A (fr) |
| CA (1) | CA2194677A1 (fr) |
| FR (1) | FR2722198B1 (fr) |
| WO (1) | WO1996001830A1 (fr) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005102358A3 (fr) * | 2004-04-20 | 2007-03-01 | Rnd Pharmaceuticals | Compositions pharmaceutiques et methodes d'utilisation de medicaments et de derives de cyclo-oxygenase-2 lipophiles a substitution silicium |
| US7576215B2 (en) | 2003-12-12 | 2009-08-18 | Wyeth | Quinolines and pharmaceutical compositions thereof |
| JP2011140475A (ja) * | 2010-01-08 | 2011-07-21 | Fujifilm Corp | 電荷輸送材料及び有機電界発光素子 |
| US20160280656A1 (en) * | 2007-01-10 | 2016-09-29 | Aerie Pharmaceuticals, Inc. | 6-aminoisoquinoline compounds |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4670421A (en) * | 1982-07-12 | 1987-06-02 | American Cyanamid Company | Antiatherosclerotic silanes |
| EP0404134A1 (fr) * | 1989-06-21 | 1990-12-27 | Dow Corning Toray Silicone Company, Limited | Composés de silicium organiques et procédé pour leur préparation |
| EP0464852A1 (fr) * | 1990-07-05 | 1992-01-08 | Merrell Pharmaceuticals Inc. | Nouveau 2,6-dialkyl-4-silyl-phénols comme agents antiathérosclérotiques et comme antioxydants |
-
1994
- 1994-07-08 FR FR9408468A patent/FR2722198B1/fr not_active Expired - Fee Related
-
1995
- 1995-07-07 EP EP95925028A patent/EP0770084A1/fr not_active Withdrawn
- 1995-07-07 WO PCT/FR1995/000916 patent/WO1996001830A1/fr not_active Ceased
- 1995-07-07 AU AU29309/95A patent/AU2930995A/en not_active Abandoned
- 1995-07-07 CA CA002194677A patent/CA2194677A1/fr not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4670421A (en) * | 1982-07-12 | 1987-06-02 | American Cyanamid Company | Antiatherosclerotic silanes |
| EP0404134A1 (fr) * | 1989-06-21 | 1990-12-27 | Dow Corning Toray Silicone Company, Limited | Composés de silicium organiques et procédé pour leur préparation |
| EP0464852A1 (fr) * | 1990-07-05 | 1992-01-08 | Merrell Pharmaceuticals Inc. | Nouveau 2,6-dialkyl-4-silyl-phénols comme agents antiathérosclérotiques et comme antioxydants |
Non-Patent Citations (3)
| Title |
|---|
| CHEMICAL ABSTRACTS, vol. 115, no. 5, 5 August 1991, Columbus, Ohio, US; abstract no. 49790q, LIAO, R. ET AL.: "STUDY ON ORGANO-SILICON COMPOUNDS WITH BIOLOGICAL ACTIVITY. (X). SYNTHESIS OF N-HYDROCARBYL-N-DIMETHYLPHENYL-DIMETHYLSILYLMETHYLENE-2-FURAMIDE AND ITS BIOLOGICAL ACTIVITY" page 861; * |
| GAODENG XUEXIAO HUAXUE XUEBAO, vol. 11, no. 10, 1990, pages 1072 - 1075 * |
| SATO, Y. ET AL.: "REACTION OF N-(TRIORGANOSILYLMETHYL)DIALKYLAMINES WITH BENZYNE", THE JOURNAL OF ORGANIC CHEMISTRY, vol. 41, no. 22, 1976, pages 3559 - 3564 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7576215B2 (en) | 2003-12-12 | 2009-08-18 | Wyeth | Quinolines and pharmaceutical compositions thereof |
| WO2005102358A3 (fr) * | 2004-04-20 | 2007-03-01 | Rnd Pharmaceuticals | Compositions pharmaceutiques et methodes d'utilisation de medicaments et de derives de cyclo-oxygenase-2 lipophiles a substitution silicium |
| US7964738B2 (en) | 2004-04-20 | 2011-06-21 | Silamed, Inc. | Pharmaceutical compositions and methods of use of lipophilic, silicon-substituted, cyclooxygenase-2 selective non-steroidal anti-inflammatory drugs and derivatives |
| US20160280656A1 (en) * | 2007-01-10 | 2016-09-29 | Aerie Pharmaceuticals, Inc. | 6-aminoisoquinoline compounds |
| US9890123B2 (en) * | 2007-01-10 | 2018-02-13 | Aerie Pharmaceuticals, Inc. | 6-aminoisoquinoline compounds |
| JP2011140475A (ja) * | 2010-01-08 | 2011-07-21 | Fujifilm Corp | 電荷輸送材料及び有機電界発光素子 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2194677A1 (fr) | 1996-01-25 |
| FR2722198B1 (fr) | 1996-10-04 |
| FR2722198A1 (fr) | 1996-01-12 |
| AU2930995A (en) | 1996-02-09 |
| EP0770084A1 (fr) | 1997-05-02 |
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