WO2008090073A1 - Nouveaux derives amino-acides gras insatures et leur utilisation dermo cosmetologique - Google Patents
Nouveaux derives amino-acides gras insatures et leur utilisation dermo cosmetologique Download PDFInfo
- Publication number
- WO2008090073A1 WO2008090073A1 PCT/EP2008/050471 EP2008050471W WO2008090073A1 WO 2008090073 A1 WO2008090073 A1 WO 2008090073A1 EP 2008050471 W EP2008050471 W EP 2008050471W WO 2008090073 A1 WO2008090073 A1 WO 2008090073A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- acid
- amino
- general formula
- carbon atoms
- hydrogen
- Prior art date
Links
- 0 CCC(CN)*CCC[C@@](C)(*)CO Chemical compound CCC(CN)*CCC[C@@](C)(*)CO 0.000 description 3
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C229/02—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
- C07C229/30—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and unsaturated
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P17/00—Drugs for dermatological disorders
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P17/00—Drugs for dermatological disorders
- A61P17/04—Antipruritics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P17/00—Drugs for dermatological disorders
- A61P17/06—Antipsoriatics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P17/00—Drugs for dermatological disorders
- A61P17/18—Antioxidants, e.g. antiradicals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P39/00—General protective or antinoxious agents
- A61P39/06—Free radical scavengers or antioxidants
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C237/00—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups
- C07C237/02—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton
- C07C237/16—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and unsaturated
Definitions
- the subject of the present invention is novel unsaturated fatty amino acids, as well as their dermocosmetological use.
- the subject of the present invention is, as medicaments, unsaturated fatty amino acid derivatives having the general formula (A):
- Rn represent, independently of each other, a hydrogen atom or a linear or branched alkyl group comprising 1 to 6 carbon atoms, and being optionally substituted by one or more halogen atoms, in particular fluorine atoms;
- R 1 represents a hydrogen, fluorine, chlorine or bromine atom, or a -CF 3 or -CHF 2 group or a linear or branched alkyl, alkenyl or alkynyl group comprising 1 to 6 carbon atoms; carbon, and being optionally substituted with one or more halogen atoms, in particular fluorine, and / or with one or more oxygen, nitrogen and / or sulfur atoms;
- R represents a hydrogen atom or an alkyl group, linear or branched, comprising 1 to 6 carbon atoms, or cycloalkyl comprising 3 to 6 carbon atoms, and being optionally substituted with one or more halogen atoms, in particular fluorine, and / or one or more oxygen
- alkyl group is meant a saturated hydrocarbon chain, linear or branched, preferably having 1 to 6 carbon atoms, such as for example a group, methyl, ethyl, isopropyl, tert-butyl, pentyl, etc.
- alkenyl group is meant a hydrocarbon chain, linear or branched, having at least one double bond and preferably comprising from 2 to 6 carbon atoms, such as for example an ethenyl, propenyl, 2,4-hexadienyl group, etc. .
- alkynyl group is meant a hydrocarbon chain, linear or branched, having at least one triple bond and preferably having 2 to 6 carbon atoms, such as for example an ethynyl group, propynyl, 2,4-hexadiynyl, etc. .
- cycloalkyl group is meant a saturated cyclic hydrocarbon group, preferably comprising from 3 to 6 carbon atoms, for example a cyclopropyl, cyclohexyl, cyclopentyl, etc. group.
- acyl group is meant an alkylcarbonyl group, that is to say an alkyl group as defined above bonded through a carbonyl group, such as an acetyl.
- halogen is meant fluorine, bromine, iodine or chlorine.
- the present invention relates, in particular, as medicaments, unsaturated fatty amino acid derivatives corresponding to the general formula (I): as well as their pharmaceutically acceptable acid addition salts, wherein:
- Rn represent, independently of each other, a hydrogen atom or a linear or branched alkyl group comprising 1 to 6 carbon atoms, and being optionally substituted by one or more halogen atoms, in particular fluorine atoms;
- Ri represents a hydrogen, fluorine, chlorine or bromine atom, or a -CF 3 or -CHF 2 group or a linear or branched alkyl, alkenyl or alkynyl group comprising 1 to 6 carbon atoms; carbon, and being optionally substituted by a halogen atom, in particular fluorine;
- R represents a hydrogen atom or a group R 'representing a linear or branched alkyl group comprising 1 to 6 carbon atoms, or cycloalkyl comprising 3 to 6 carbon atoms, and being optionally substituted with a halogen atom; , in particular fluorine;
- Ra and Rb represent, independently of one another, a hydrogen atom or a linear or branched alkyl or acyl group comprising 1 to 6 carbon atoms, Ra and Rb being able together to form a hydrocarbon-based ring containing from 4 to 6 carbon atoms;
- n is an integer between 2 and 14.
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) meet the following criteria:
- Rn represent a hydrogen atom on all the carbons of the carbon chain except on one where Rn represents a linear or branched alkyl group comprising 1 to 6 carbon atoms, and being optionally substituted by one or more halogen atoms , in particular fluorine;
- R represents a hydrogen atom or an alkyl group, linear or branched, comprising 1 to 6 carbon atoms, or cycloalkyl comprising 3 to 6 carbon atoms, and being optionally substituted by one or more atoms halogen, in particular fluorine; R is preferably hydrogen; N, Ra, Rb and Ri are as defined above.
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) meet the following criteria:
- Ra and Rb represent a hydrogen atom.
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) meet the following criteria:
- R represent a hydrogen atom
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) meet the following criteria: • Rn represent a hydrogen atom.
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) meet the following criteria:
- Ri represents a hydrogen or fluorine atom.
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) meet the following criteria:
- n is between 3 and 5.
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) meet the following criteria:
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) meet the following criteria:
- the unsaturated fatty amino acid derivatives of general formula (A) or (I), as defined above, can be in the form of Z or E isomers, or a mixture of Z isomers and isomers. E, in all quantities.
- pharmaceutically acceptable acid addition salts means salts formed by addition of an acid to the compound, which are non-toxic and which possess the pharmacological activity of the parent compound.
- the acid addition salts can be formed from inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid or phosphoric acid, or from organic acids such as acetic acid, benzenesulfonic acid, benzoic acid, camphorsulfonic acid, citric acid, ethanesulfonic acid, fumaric acid, glucoheponic acid, gluconic acid, glutamic acid, glycolic acid, hydroxynaphthoic acid, 2-hydroxyethanesulfonic acid, lactic acid, maleic acid, malic acid, mandelic acid, methanesulfonic acid , muconic acid, 2-naphthalenesulfonic acid, propionic acid, salicylic acid, succinic acid, dibenzol-L-tartaric acid, tartaric acid, p-toluenesulfonic acid, trimethylacetic acid or trifluoroacetic acid.
- organic acids such as acetic acid,
- Preferred pharmaceutically acceptable salts are salts formed from hydrochloric acid.
- the compounds which are the subject of the present invention are preferably in the form of hydrochloride salts.
- the unsaturated fatty amino acid derivatives of the invention are chosen from: (E) -6-amino-hex-2-enoic acid hydrochloride, - the hydrochloride of the acid ( ) -7-amino-hept-2-enoic acid, (E) -8-amino-oct-2-enoic acid hydrochloride, the (iT) -9-amino-non-2- enoic, ())) -10-amino-dec-2-enoic acid hydrochloride, ()) -14-amino-tetradec-2-enoic acid hydrochloride, 6-amino acid hydrochloride, 2-fluoro-hex-2-enoic as a mixture of isomers Z and E, - (Z) -6-amino-2-fluoro-hex-2-enoic acid hydrochloride, hydrochloride of (?) -6-amino-2-fluoro-hex-2-enoic acid
- the subject of the present invention is also, as new chemical compounds, unsaturated fatty amino acid derivatives of general formula (A):
- X represents an oxygen or an NH group
- Rn represent, independently of each other, a hydrogen atom or a linear or branched alkyl group comprising 1 to 6 carbon atoms, and being optionally substituted by one or more halogen atoms, in particular fluorine atoms;
- Ri represents a hydrogen, fluorine, chlorine or bromine atom, or a -CF 3 or -CHF 2 group or a linear or branched alkyl, alkenyl or alkynyl group comprising 1 to 6 carbon atoms; carbon, and being optionally substituted with one or more halogen atoms, in particular fluorine, and / or with one or more oxygen, nitrogen and / or sulfur atoms;
- R represents a hydrogen atom or a linear or branched alkyl group comprising 1 to 6 carbon atoms, or cycloalkyl comprising 3 to 6 carbon atoms; carbon atoms, and being optionally substituted with one or more halogen atoms, in particular fluorine, and / or with one or more oxygen and / or nitrogen atoms;
- Ra and Rb represent, independently of one another, a hydrogen atom or a linear or branched alkyl or acyl group comprising 1 to 6 carbon atoms, optionally substituted with one or more oxygen atoms and / or nitrogen, Ra and Rb may together form a hydrocarbon ring having from 4 to 6 carbon atoms, optionally substituted with one or more oxygen and / or nitrogen atoms; and • n is an integer from 2 to 14; excluding the following compounds: 6-amino-hex-2-enoic acid, its hydrochloride and trifluoroacetate, 8-amino-oct-2-enoic acid trifluoroacetate, 8- (dimethylamino) acid -oct-2-ennoic acid, 12- (dimethylamino) -dodec-2-enoic acid, ethyl 6- (isopropylamino) -2-methyl-hex-2-enoate, 6- (tert-butylamino) Eth
- the unsaturated fatty amino acid derivatives of the invention correspond to the following general formula (I):
- Rn represent independently of each other a hydrogen atom or a linear or branched alkyl group comprising 1 to 6 carbon atoms, and being optionally substituted by one or more halogen atoms, in particular fluorine;
- Ri represents a hydrogen, fluorine, chlorine or bromine atom, or a -CF 3 or -CHF 2 group or a linear or branched alkyl, alkenyl or alkynyl group comprising 1 to 6 carbon atoms; carbon, and being optionally substituted by a halogen atom, in particular fluorine;
- R represents a hydrogen atom or a group R 'representing a linear or branched alkyl group comprising 1 to 6 carbon atoms, or cycloalkyl comprising 3 to 6 carbon atoms, and being optionally substituted with a halogen atom; , in particular fluorine;
- Ra and Rb represent, independently of one another, a hydrogen atom or a linear or branched alkyl or acyl group comprising 1 to 6 carbon atoms, Ra and Rb being able together to form a hydrocarbon-based ring containing from 4 to 6 carbon atoms;
- n is an integer between 2 and 14;
- 6-amino-hex-2-enoic acid its hydrochloride and trifluoroacetate
- 8-amino-oct-2-enoic acid trifluoroacetate 8- (dimethylamino) acid -oct-2-ennoic acid
- 12- (dimethylamino) -dodec-2-enoic acid 12- (dimethylamino) -dodec-2-enoic acid
- Ethyl 2-methyl-hex-2-enoate methyl 6-amino-2-methyl-hex-2-enoate, methyl 7-amino-hept-2-enoate, 7-amino-2 methyl methyl-hept-2-enoate and methyl 7-amino-4-methyl-hept-2-enoate.
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) meet the following criteria: • Rn represent a hydrogen atom on all the carbon atoms of the carbon chain, except wherein Rn represents a linear or branched alkyl group having 1 to 6 carbon atoms, and being optionally substituted by one or more halogen atoms, in particular fluorine;
- R represents a hydrogen atom or an alkyl group, linear or branched, comprising 1 to 6 carbon atoms, or cycloalkyl comprising 3 to 6 carbon atoms, and being optionally substituted by one or more atoms halogen, in particular fluorine; R is preferably hydrogen;
- Ra, Rb and Ri are as defined above.
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) meet the following criteria:
- Ra and Rb represent a hydrogen atom.
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) meet the following criteria:
- R represent a hydrogen atom
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) meet the following criteria: • Rn represent a hydrogen atom.
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) meet the following criteria:
- Ri represents a hydrogen or fluorine atom.
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) meet the following criteria:
- n is between 3 and 5.
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) meet the following criteria:
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) meet the following criteria:
- the unsaturated fatty amino acid derivatives of general formula (A) or (I), as defined above, can be in the form of Z or E isomers, or a mixture of Z isomers and isomers. E, in all quantities.
- pharmaceutically acceptable acid addition salts means salts formed by addition of an acid to the compound, which are non-toxic and which possess the pharmacological activity of the parent compound.
- the acid addition salts can be formed from inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid or phosphoric acid, or from organic acids such as acetic acid, benzenesulfonic acid, benzoic acid, camphorsulfonic acid, citric acid, ethanesulfonic acid, fumaric acid, glucoheptonic acid, acid gluconic acid, glycolic acid, hydroxynaphthoic acid, 2-hydroxyethanesulfonic acid, lactic acid, maleic acid, malic acid, mandelic acid, methanesulfonic acid, muconic acid, 2-naphthalenesulfonic acid, propionic acid, salicylic acid, succinic acid, dibenzol-L-tartaric acid, tartaric acid, p-toluenesulfonic acid, acid trimethylacetic acid or trifluoroacetic acid.
- inorganic acids such as hydrochloric acid, hydro
- Preferred pharmaceutically acceptable salts are salts formed from hydrochloric acid.
- the compounds which are the subject of the present invention are preferably in the form of hydrochloride salts.
- the unsaturated fatty amino acid derivatives of the invention are chosen from: - ()) -6-amino-hex-2-enoic acid hydrochloride, the hydrochloride of the acid ( ) -7-amino-hept-2-enoic acid, hydrochloride of (?) -8-amino-oct-2-enoic acid, (E) -9-amino-non-2-enoic acid hydrochloride, (E) -10-amino-dec-2-enoic acid hydrochloride, (E) -hydrochloride 14-amino-tetradec-2-enoic acid, 6-amino-2-fluoro-hex-2-enoic acid hydrochloride as a mixture of Z and E isomers, the hydrochloride of the acid (Z ) -6-amino-2-fluoro-hex-2-enoic acid, (E) -6-amino-2-fluoro-hex-2-enoic
- the present invention also relates to dermatological compositions comprising as active principle at least one fatty acid amino derivative of general formula (A) or (I), as defined above for the derivatives as a medicament, in combination with a dermocosmetologically acceptable excipient.
- the subject of the present invention is also the use of the unsaturated fatty amino acid derivatives of general formula (A) or (I), as defined previously for the derivatives as a medicament, for the preparation of an antiradical dermatological composition, anti-inflammatory, anti-purine, anti-collagenase, and / or for the treatment of skin aging, and / or intended to treat keratinization and pigmentation disorders and / or to improve healing.
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) are more particularly intended for compositions intended for the treatment of psoriasis, pruritus and / or atopic dermatitis, as well as for the repigmentation of the hair or of skin, including white age spots.
- the unsaturated fatty amino acid derivatives of general formula (A) or (I) are more particularly intended for compositions intended to cause a lightening of the skin or to treat brown age spots. Because of their anti-radical activity, unsaturated fatty amino acid derivatives of general formula (A) or (I) are also useful for preventing or limiting cutaneous photocarcinogenesis at early stages and therefore can be used in prevention and the treatment of various tumoral diseases of the skin.
- the present invention also relates to a method for preparing an unsaturated fatty amino acid derivative of general formula (A) below:
- X represents an oxygen or an NH group
- Rn represent, independently of each other, a hydrogen atom or a linear or branched alkyl group comprising 1 to 6 carbon atoms, and being optionally substituted by one or more halogen atoms, in particular fluorine atoms;
- Ri represents a hydrogen, fluorine, chlorine or bromine atom, or a -CF 3 or -CHF 2 group; or a linear or branched alkyl, alkenyl or alkynyl group comprising 1 to 10 carbon atoms; carbon, and being optionally substituted with one or more halogen atoms, in particular fluorine, and / or with one or more oxygen, nitrogen and / or sulfur atoms;
- R represents a hydrogen atom or an alkyl group, linear or branched, comprising 1 to 6 carbon atoms, or cycloalkyl comprising 1 to 6 carbon atoms, and being optionally substituted by one or more halogen atoms, in particular fluorine, and / or one or more oxygen and / or nitrogen atoms;
- Ra and Rb represent, independently of one another, a hydrogen atom or an alkyl or acyl group, optionally substituted with one or more linear or branched oxygen and / or nitrogen atoms, comprising 1 to 6 carbon atoms, Ra and Rb may together form a hydrocarbon ring having 4 to 6 carbon atoms, optionally substituted with one or more oxygen and / or nitrogen atoms; and
- n is an integer between 2 and 14;
- said preparation process comprising:
- R ' represents a linear or branched alkyl group comprising from 1 to 6 carbon atoms, and is preferably an ethyl group
- R "and R"' represent, independently of one another, a group alkyl, linear or branched, comprising from 1 to 6 carbon atoms, and preferably an ethyl or methyl group, said groups R "and R" 'being able to form a hydrocarbon ring comprising from 2 to 4 carbon atoms,
- GP represents a protecting group for forming, in particular with the adjacent nitrogen atom, a carbamate group, N-GP being preferably a tert-butyl or benzyl carbamate,
- GP corresponds in particular to a protecting group as defined in "Protective Groups in Organic Synthesis” Third edition Theodora GREEN & Wiley Peter Wakes Interscience ISBN 0-471-16019-9 Chapter 2 pages 17 to 246,
- the process of the present invention allows the preparation of unsaturated fatty amino acids, under excellent conditions both in terms of yield but also of quality without trace of contamination, said process being able to be transposed at the industrial level.
- the unsaturated fatty amino acid derivatives obtained by the process of the invention can be in the form of stereoisomers Z or E, or in the form of a mixture of these different forms.
- the process of the invention allows the preparation of an unsaturated fatty amino acid derivative of formula (I):
- Rn represent, independently of each other, a hydrogen atom or a linear or branched alkyl group comprising 1 to 6 carbon atoms, and being optionally substituted by one or more halogen atoms, in particular fluorine atoms;
- Ri represents a hydrogen, fluorine, chlorine or bromine atom, or a -CF 3 or -CHF 2 group or a linear or branched alkyl, alkenyl or alkynyl group comprising 1 to 6 carbon atoms; carbon, and being optionally substituted by a halogen atom, in particular fluorine;
- R represents a hydrogen atom or a group R 'representing a linear or branched alkyl group comprising 1 to 6 carbon atoms, or cycloalkyl comprising 3 to 6 carbon atoms, and being optionally substituted with a halogen atom; , in particular fluorine;
- Ra and Rb represent, independently of one another, a hydrogen atom or a linear or branched alkyl or acyl group comprising 1 to 6 carbon atoms, Ra and Rb being able together to form a hydrocarbon-based ring containing from 4 to 6 carbon atoms; and
- N is an integer between 2 and 14
- n, Rn and GP are as defined above, and then reducing the carbonyl function of the compound of formula (VII) as defined above, this step being in particular carried out using aluminum hydrides such as diisobutyl hydride aluminum at low temperature.
- Ra and / or Rb is other than a hydrogen atom
- alkylation or ⁇ -acylation or amidification reactions or a combination of these reactions are carried out according to methods known to those skilled in the art (" Mach's Advanced Organic
- the unsaturated fatty amino acid derivatives of formula (A) or (I) in which R is different from a hydrogen atom are conventionally obtained by coupling from the acid function.
- Ra and Rb represent hydrogens.
- R represents a hydrogen
- Rn represent a hydrogen. According to yet another particular embodiment of the method of the invention,
- Ri represent a hydrogen or a fluorine.
- the present invention also relates to a method for preparing an unsaturated fatty amino acid derivative of formula (1-1) below:
- Ra, Rb, Rn and R represent a hydrogen
- R 1 is as defined above, that is to say that it represents a hydrogen, fluorine, chlorine or bromine atom, or a -CF 3 or -CH 2 group or a grouping alkyl, alkenyl or alkynyl, linear or branched, comprising 1 to 6 carbon atoms, and being optionally substituted with one or more halogen atoms, in particular fluorine, and / or with one or more oxygen atoms, nitrogen and / or sulfur; and
- n is as defined above in formula (I-1), and
- GP represents a protecting group for forming, with the adjacent nitrogen atom in particular, a carbamate type group, N-GP being preferably a t-butyl carbamate or benzyl carbamate,
- n and GP being as defined above in formula (VII-I), this step being carried out in particular using conventional reducing agents such as hindered hydrides of aluminum such as diisobutyl aluminum hydride at low temperature, the implementation of the Wittig-Horner reaction by the reaction of a phosphonate of formula (II) below:
- R ' represents a linear or branched alkyl group comprising from 1 to 6 carbon atoms, and is preferably an ethyl group
- R “and R” represents, independently of one another, a linear or branched alkyl group comprising from 1 to 6 carbon atoms, and preferably an ethyl or methyl group, said R" and R groups "'may together form a hydrocarbon ring comprising 2 to 4 carbon atoms,
- n, GP and R 1 are as defined above,
- the unsaturated fatty amino acids that are the subject of the present invention can thus be prepared by using Wittig-Hôrner-type reactions from a phosphonate (fluorinated or non-fluorinated) or Wittig type from a triphenylphosphonium compound. on the cyclized alpha-hydroxy amine from the corresponding lactam whose amino function will be protected beforehand (see synthesis scheme developed below).
- a saponification reaction of the protected amino ester optionally follows to obtain an amino acid which will be deprotected by acid hydrolysis to give the unsaturated fatty amino acid of the general formula:
- the reaction of Wittig-Hörner is a reaction described in the document Modem Synthetic Reaction, Second Edition, Herbet O.House, Wittig Hörner reaction p.682-709, and any experimental condition described in the state of the art can be used in the scope of the present invention.
- the Wittig-Hôrner reaction can be carried out in the presence of triethylphosphonoacetate and potassium carbonate in an ethanolic medium.
- the method for protecting the amine function is a conventional method commonly used for its advantage of not being hydrolysable under the basic conditions (deprotection conditions of the ester function) and inert with respect to other nucleophilic reagents.
- the partial lactam reduction step is carried out in the presence of a reducing agent such as diisobutyl aluminum hydride.
- a reducing agent such as diisobutyl aluminum hydride.
- the aluminum salts are removed by forming a water-soluble complex in the presence of Rozen salts (Reagents for organic synthesis, vol.I, Louis Fieser and Mary Fieser, 36). .
- Rc represents a hydrogen or a linear or branched alkyl group containing from 1 to 6 carbon atoms
- R 1 represents a hydrogen, fluorine, chlorine or bromine atom, or a -CF 3 OR -CHF 2 group or a linear or branched alkyl, alkenyl or alkynyl group comprising 1 to 6 carbon atoms; and being optionally substituted by one or more halogen atoms, in particular fluorine, oxygen, nitrogen and / or sulfur;
- Rn represent, independently of each other, a hydrogen atom or a linear or branched alkyl group comprising 1 to 6 carbon atoms, and being optionally substituted by one or more halogen atoms, in particular fluorine atoms; • n is an integer between 2 and 14;
- GP represents a protecting group for forming, in particular with the adjacent nitrogen atom, a carbamate group, N-GP being preferably a tert-butyl or benzyl carbamate,
- GP corresponds in particular to a protecting group as defined in "Protective Groups in Organic Synthesis” Third edition Theodora GREEN & Peter WUTS Wiley Interscience ISBN 0-471-16019-9 Chapter 2 pages 17 to 246; and
- Rd represents a hydrogen or a protecting group GP 'as defined above for GP, and in particular such that N-GP' represents a tert-butyl carbamate or benzyl carbamate; except for the following compounds: tert-butyl (E) -6- (N, N-di-tert-butoxycarbonylamino) -hex-2-enoate, (E) -6- ( ⁇ / - ethyl tert-butoxy-carbonylamino) -hex-2-enoate, methyl (E) -7- ( ⁇ -tert-butoxycarbonylamino) -hept-2-enoate and (E) -acetate -7- ( ⁇ / -ter ⁇ -butoxy-carbonylamino) hept-2-enoic acid.
- the compounds of formula (VIII) correspond to the following criterion:
- R 1 represents a hydrogen, fluorine, chlorine or bromine atom, or a -CF 3 or -CHF 2 grouping or a linear or branched alkyl, alkenyl or alkynyl group comprising 1 to 6 carbon atoms, and being optionally substituted by one or more halogen atoms, in particular fluorine atoms.
- the compounds of formula (VIII) correspond to the following criterion: Rd represents a hydrogen. According to one particular characteristic of the invention, the compounds of formula (VIII)
- the compounds of formula (VIII) correspond to the following criterion: R 1 represents a hydrogen or a fluorine.
- Stage 1 In a tricolor stream under nitrogen, 10.0 g of Caprylolactam (70.8 mmol) are solubilized in 150 ml of tetrahydrofuran. 10.06 ml (1.01 eq) of triethylamine are added together with 8.74 g (1.01 eq) of 4-dimethylaminopyridine and finally 30.91 g (2 eq) of dibutyl di-carbonate. The reaction medium is stirred overnight at room temperature. A follow-up CCM makes it possible to control the end of the reaction. The reaction medium is concentrated, taken up in water and ethyl acetate.
- Boc (70.8mmol) are solubilized in 170ml of toluene.
- the medium is cooled to -78 ° C and 59.2 ml of a Dibal-H solution at 20% in toluene (1.01 eq) are poured dropwise, over 1 hour, maintaining the process temperature between -80 0 C and -75 ° C.
- a follow-up CCM makes it possible to control the end of the reaction.
- 480 ml of a saturated solution of double tartrate are slowly poured and the medium is stirred vigorously overnight.
- the organic phase is extracted.
- the aqueous phase is extracted with ethyl acetate three times.
- the combined organic phases are washed with saturated NaCl solution, dried over MgSO 4 , filtered and concentrated in vacuo to yield an orange solid.
- Stage 5 In a nitrogen balloon, 1.2 g (4.28 mmol) of compound of stage 4 are solubilized in 7.5 ml (3.5 eq) of a solution of HCl in 2M ether. The medium is stirred overnight at 35 ° C. CCM monitoring is used to control the end of the reaction. The medium is concentrated under vacuum, taken up in dichloromethane, filtered and washed with dichloromethane, dried under vacuum to give a white solid. This solid is recrystallized several times in ethanol.
- Stages 1 and 2 are conducted in the same manner as previously, on Caprylolactam.
- Stages 4 and 5 are conducted as before and lead to the following characterizations:
- the keratinocyte the most represented cell in the epidermis, releases, in response to numerous extracellular factors present in its environment, logically active bio-mediators, notably prostaglandins and leukotrienes, which play an important role in the initiation and modulation of inflammatory skin reactions and which are also involved in the regulation of the immune response.
- the Prostaglandin PG ⁇ KFlalpha is one of the major metabolites produced by the stimulated keratinocyte, and representative of the modulation of the production of metabolites of arachidonic acid metabolism derived from the cyclooxygenase pathway.
- the keratinocyte suspension in the DMEM 10% FCS is distributed in 6-well plates (1.2 ⁇ 10 6 cells / well), and incubated for 16 hours at 37 ° C. in a 5% CO 2 atmosphere.
- the keratinocytes are then rinsed with PBS to remove the non-adherent cells and then exposed to the test products included in DMEM without FCS (which could interfere in the assay).
- the concentration tested in culture is 3 ⁇ g / ml. It was selected after a preliminary evaluation of cytotoxicity (neutral red) and is not cytotoxic.
- the cells are pre-incubated for 60 minutes with the test products and then a stimulating agent of the arachidonic acid cascade, the calcium ionophore, is added for 5 hours: the calcium ionophore A23187 is used at the 1 ⁇ M concentration.
- the culture media of each of the wells are recovered, centrifuged at 3000 rpm and stored at -80 ° C.
- the barrier function of the skin provides protection against the external environment, and the keratinocytes of the epidermis can directly respond to a wide variety of irritants or allergens and participate actively in inflammatory and immune skin processes. , especially through the generation of pro-inflammatory cytokines, mediators of protein origin.
- cytokines mediators of protein origin.
- ILl ⁇ Interleukin 1 ⁇
- TNF ⁇ Tumor Necrosis Factor ⁇
- the chemokine system controls leukocyte trafficking during the inflammatory response and is necessary for the interactions of innate and adaptive immune responses.
- PROTOCOL The keratinocyte suspension in the complemented KSFM is distributed in 96-well plates (3.10 4 cells / well), and incubated for 16 hours at 37 ° C. in a 5% CO 2 atmosphere. The keratinocytes are then rinsed with PBS to remove the non-adherent cells and then exposed to the test products included in uncompleted KSFM (which could interfere in the assay). The concentration tested in culture is 3 ⁇ g / ml. It was selected after a preliminary evaluation of cytotoxicity (neutral red) and is not cytotoxic.
- IL8 is assayed by an immunoenzymatic method in ELISA kit (Immunotech).
- reactive oxygen species also known as Activated Oxygen Species (OAA)
- OAA Activated Oxygen Species
- EAOs are considered as "second messengers" in cellular signaling of oxidative stress and thus as early mediators of inflammation (A. Van Der Vliet and A. Bast, 1992).
- EAOs are produced in such quantity that cellular antioxidant activity is insufficient; these EAOs then become factors inducing inflammatory pathologies and tissue aging (Y. Miyachi et al, 1986, M. Kress et al, 1995).
- H 2 O 2 chemical
- UVA physical
- the produced EAO will alter various cellular targets (Membranes, DNA or Proteins) whose alteration can be analyzed by widely used biochemical methodologies such as the TBARS assay for lipid lipoperoxidation, or the in vitro assay of intracellular EAOs. using the H 2 DCF-DA probe.
- Cytofluor II Cytofluorimeter Ref. PERSEPTIVE BIOSYSTEMS c) Reagents: Cell culture reagents: - Dulbecco's Modif ⁇ ed Eagle Medium (DMEM) culture medium
- FCS Fetal calf serum
- concentrations tested are non-cytotoxic concentrations. Cytotoxicity was performed by the neutral red method after incubation of the product for 3 hours.
- the reference anti-radical product is vitamin E or ⁇ -tocopherol (PM:
- the stock solution is prepared at 400 mg / ml in DMSO and stored at -20 ° C.
- the pre-treatment solution is prepared extemporaneously at 400 ⁇ g / ml in culture medium without FCS.
- the dilutions are prepared in culture medium extemporaneously, for a concentration range of 0.02, 0.2, 2 and 20 ng / ml.
- the cells of the L929 fibroblast line are seeded in flat-bottomed 96-well microplates in 100 ⁇ l of DMEM supplemented with 10% FCS and incubated overnight at 37 ° C in a humid atmosphere at 5% CO 2 .
- the cell-free plate blank is evaluated on 6 wells. Pre-treatment of cells:
- the dilutions of the products to be tested and the reference molecule are carried out in the culture medium without FCS and then deposited in 7 wells at the rate of 100 ⁇ l per well. The cells are then incubated for 3 hours at 37 ° C. in a humid atmosphere at 5% CO 2 .
- Control naturally fluorescence of the cells
- Control basic production of EAO
- stimulated production of EAO after oxidative treatment
- Stimulated cells are incubated with the probe and treated but not pretreated.
- Control cells are neither pre-treated, nor incubated with the probe, nor processed.
- the cells are rinsed with PBS IX at a rate of 100 ⁇ l per well. They are then incubated for 30 minutes at 37 ° C. in a humid atmosphere at 5% CO 2 with 50 ⁇ l of 5 ⁇ M H 2 DCF-DA probe. After 30 minutes in contact with the probe alone, the cells are incubated
- the cells are then rinsed with PBS IX at the rate of 100 ⁇ l per well, then incubated for 30 minutes at 37 ° C. in a humid atmosphere at 5% CO 2 with 100 ⁇ l of 1 ⁇ PBS. These 1 h 30 minutes of incubation at 37 ° C allow intracellular esterases to deacetylate the probe in H 2 DCF, oxidizable by the intracellular EAO DCF: fluorescent compound whose formation is proportional to the amount of intracellular EAO.
- Table 3 The values shown in Table 3 are percentages of inhibition of intracellular EAO production following exogenous oxidative stress, compared to "control” (100%) and "stimulated” cells (0%). The average percentages of protection for the 13 molecules tested at 4 concentrations on the L929 line are shown in Table 3 below.
- Vitamin E reference anti-free radical molecule
- the unsaturated fatty amino acid derivatives according to the short-chain (C7-C9) invention in particular compounds 8, 7 and 6, have anti-radical properties (activity> 25%).
- RLOs are considered as "second messengers" in cellular signaling of oxy-dative stress and thus as early mediators of inflammation (A. Van Der Vliet and A. Bast, 1992).
- the RLOs are produced in such quantity that the cellular antioxidant activity is insufficient; these RLOs then become factors inducing inflammatory pathologies and tissue aging (Y. Miyachi et al, 1986, M. KTQSS et al, 1995).
- the plasma membrane is the main and the first target of RLOs and, being rich in lipids, is the site of increased peroxidation (A. W. Girotti, 1985).
- the peroxides generated during this lipid oxidation are also very reactive and capable of degrading the protein and genomic material.
- TBARS Thiobarbituric Acid Reactive Substances
- the products were evaluated on the murine fibroblast line L929.
- the cells are pretreated with the different product concentrations for 16 hours and are then stimulated with the H 2 O 2 -Fe 2 VFe 3+ complex (200 ⁇ M-1mM) for 1 hour.
- TBAR complexes for Thio Barbituric Acid Reactive Substance are formed between the lipid oxidation products (malondialdehyde or MDA) and the thiobarbituric acid (TBA) which can be assayed in fluorescence by compared to a standard range with MDA.
- MDA lipid oxidation products
- TAA thiobarbituric acid
- the TBARS assay is then expressed in pmol / ⁇ g of proteins. Proteins and TBARS are assayed in the intracellular medium.
- Vitamin E at 400 ⁇ g / ml decreases the lipid peroxidation induced by the complex H 2 O 2 -Fe 2+ ZFe 3+ , and very effectively protects cell membranes.
- the in vitro module presented in this study reflects the consequences due to a major oxidative stress on the main cellular target which is the plasma membrane.
- the lipid peroxidation assay is a good marker of oxidative stress and allows the evaluation of the antioxidant action, with respect to the hydroxyl radical, of active principles at the level of the cell membrane.
- Melanogenesis consists of a series of enzymatic and spontaneous reactions, the precursor of which is tyrosine. Three main enzymes participate in this process: tyrosinase, and tyrosinase-related protein 1 and 2 (TRP 1 and 2) (Jimbow et al., 2000). Tyrosinase catalyzes the transformation of tyrosine into dopaquinone. From there, two synthetic routes are possible: eumelanogenesis and pheomelanogenesis. The conversion of dopaquinone to eumelanin is by a series of successive reactions of oxidation involving TRP-I and TRP-2. Eumelanin is the dark brown, low sulfur pigment and provides photoprotective power. In pheomelanogenesis, molecules with a high sulfur content are incorporated into the dopaquinone to give the dozenso-melanine, yellow-orange, present in the skin of the red subjects.
- the physiological stimulus of melanin synthesis is the sun, which leads to an increase in the number of melanocytes, a melanin neosynthesis, and morphological changes in melanocytes, associating an increase in their dendricity with an increase in the transfer of melanosomes to keratinocytes.
- sun exposure stimulates the synthesis and secretion of alpha melanocyte stimulating hormone.
- ⁇ -MSH increases intramelanocyte concentration in cAMP, activating the transcription factor, Mitf, which in turn stimulates the transcriptional activity of genes encoding tyrosinase, TRP-I and TRP-2.
- Some exogenous molecules are also known to negatively regulate melanogenesis. Hydroquinone inhibits melanin synthesis by presenting itself as a tyrosinase substrate in order to divert its activity (Curto et al, 1999). Vitamin C inhibits tyrosinase but also does not have a strong reducing effect by inhibiting melanin staining by oxidation.
- the extracellular and intracellular melanin level is then measured spectrophotometrically at a wavelength of 405 nm according to the protocol (Meun, Y.J. et al).
- the amount of pigment is determined by a standard range of melanin and analysis on Microwin software (Berthold Biotechnologies).
- a total protein assay is performed for intracellular melanin samples by the method
- BCA-Copper at 540nm.
- the standard range is made with a standard protein, BSA (Serum Albumin Bovine). 6.2) RESULTS:
- the alpha MSH at 1 ⁇ M increases by more than 100% the production of melanin compared with the control cells.
- depigmenting agents such as hydroquinone at 1 ⁇ g / ml or vitamin C at 40 ⁇ g / ml, which inhibit nearly 60% of melanogenesis.
- the molecule No. 11 weakly inhibits the amount of intra- and extracellular melanin at approximately 45% and 30%, respectively. However, the molecule No. 11 has no effect on the synthesis of melanin at 10 ⁇ g / ml.
- molecule No. 6 increases the amount of intracellular melanin to about 100%.
- Molecule No. 5 also seems to have a pigmenting effect, but it is weaker than that of molecule No. 6.
- Frozen sections of 5 ⁇ m from a mammoplasty of a 54-year-old woman are placed on histological slides (4 sections per slide). Each solution is tested on a slide. The sections are covered with the test solutions and then incubated for 2 hours at 37 ° C. in a humid chamber. The solutions are removed by repetitive rinsing and the sections are stained with picrosirius. Microscopic examination is performed. 7.1.2. RESULTS
- the products of the present invention have a higher activity than the previously known DHA activity.
- the study is made on a 5% GM product in comparison with the excipient (hydrocerin), a positive control and a control in the presence of collagenase at 100 U / ml. Hydrocerin is used as an excipient for the preparation of the product to be applied.
- the dermis has a normal structure, with regular collagen bundles in all compartments,
- the collagen bundles are very strongly degraded and the thickness of the dermis has decreased by half, for the excipients with excipient and collagenase, the bundles of collagen are strongly degraded, the alteration being less than that observed on collagenase controls, and the thickness of the dermis decreased by almost half.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Public Health (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Dermatology (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biochemistry (AREA)
- Toxicology (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Cosmetics (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009545919A JP2010515767A (ja) | 2007-01-16 | 2008-01-16 | 新規な不飽和脂肪族アミノ酸誘導体および皮膚化粧品におけるそれらの使用 |
CA002674568A CA2674568A1 (fr) | 2007-01-16 | 2008-01-16 | Nouveaux derives amino-acides gras insatures et leur utilisation dermo cosmetologique |
EP08701535.0A EP2111391B9 (fr) | 2007-01-16 | 2008-01-16 | Nouveaux derives amino-acides gras insatures et leur utilisation dermo cosmetologique |
US12/523,231 US20100240754A1 (en) | 2007-01-16 | 2008-01-16 | Unsaturated fatty amino acid derivatives and use thereof in dermal cosmetology |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0700291A FR2911338B1 (fr) | 2007-01-16 | 2007-01-16 | Nouveau procede de preparation de derives d'amino-acides insatures |
FR0700291 | 2007-01-16 | ||
FR0753864A FR2913685B1 (fr) | 2007-03-15 | 2007-03-15 | Nouveaux derives amino-acides gras insatures et leur utilisation dermo-cosmetologique |
FR0753864 | 2007-03-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008090073A1 true WO2008090073A1 (fr) | 2008-07-31 |
Family
ID=39203181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/050471 WO2008090073A1 (fr) | 2007-01-16 | 2008-01-16 | Nouveaux derives amino-acides gras insatures et leur utilisation dermo cosmetologique |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100240754A1 (fr) |
EP (1) | EP2111391B9 (fr) |
JP (1) | JP2010515767A (fr) |
CA (1) | CA2674568A1 (fr) |
WO (1) | WO2008090073A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110251501B (zh) * | 2019-06-14 | 2022-04-15 | 中科萱嘉医养(珠海)健康科技有限公司 | 一种益母草碱酚酸离子盐及其制备方法与应用 |
WO2022090277A1 (fr) | 2020-10-30 | 2022-05-05 | Merck Patent Gmbh | Amides d'acides gras n-fonctionnalisés utilisés en tant que substances auto-bronzantes |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991004746A1 (fr) | 1989-09-29 | 1991-04-18 | Rhone-Poulenc Rorer International (Holdings) Inc. | Peptides et pseudopeptides antithrombotiques |
FR2829491A1 (fr) | 2001-09-12 | 2003-03-14 | Diverchim | Procede de preparation des hydroxy-acides gras insatures et de leurs esters, leur utilisation comme agent anti-collagenase |
WO2005068643A2 (fr) | 2004-01-19 | 2005-07-28 | Dsm Ip Assets B.V. | Synthese biochimique de l'acide 6-amino caproique |
-
2008
- 2008-01-16 EP EP08701535.0A patent/EP2111391B9/fr not_active Not-in-force
- 2008-01-16 CA CA002674568A patent/CA2674568A1/fr not_active Abandoned
- 2008-01-16 US US12/523,231 patent/US20100240754A1/en not_active Abandoned
- 2008-01-16 JP JP2009545919A patent/JP2010515767A/ja not_active Withdrawn
- 2008-01-16 WO PCT/EP2008/050471 patent/WO2008090073A1/fr active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991004746A1 (fr) | 1989-09-29 | 1991-04-18 | Rhone-Poulenc Rorer International (Holdings) Inc. | Peptides et pseudopeptides antithrombotiques |
FR2829491A1 (fr) | 2001-09-12 | 2003-03-14 | Diverchim | Procede de preparation des hydroxy-acides gras insatures et de leurs esters, leur utilisation comme agent anti-collagenase |
WO2003022787A1 (fr) * | 2001-09-12 | 2003-03-20 | Pierre Potier | Procede de preparation des hydroxy-acides gras insatures et de leurs esters, leur utilisation dans des preparations pharmaceutiques et/ou cosmetiques |
WO2005068643A2 (fr) | 2004-01-19 | 2005-07-28 | Dsm Ip Assets B.V. | Synthese biochimique de l'acide 6-amino caproique |
Non-Patent Citations (16)
Title |
---|
C.H.STAMMER ET R.G. WEBB: "The synthesis of Racemic threo- and erythro-beta-Hydroxylisines", JOURNAL OF ORGANIC CHEMISTRY., vol. 34, no. 8, August 1969 (1969-08-01), USAMERICAN CHEMICAL SOCIETY, WASHINGTON, DC., pages 2306 - 2311, XP002455237 * |
CACCIOLA J ET AL: "The Synthesis of Lysine alpha-Ketoamide Thrombin Inhibitors via an Epoxy AmideRing Opening", TETRAHEDRON LETTERS, ELSEVIER, AMSTERDAM, NL, vol. 38, no. 33, 18 August 1997 (1997-08-18), pages 5741 - 5744, XP004085859, ISSN: 0040-4039 * |
DAVIES ET AL., TETRAHEDRON : ASYMMETRY, vol. 17, 2006, pages 1793 - 1811 |
DAVIES ET AL: "Homochiral lithium amides for the asymmetric synthesis of beta-amino acids", TETRAHEDRON: ASYMMETRY, PERGAMON, OXFORD, GB, vol. 17, no. 12, 31 July 2006 (2006-07-31), pages 1793 - 1811, XP005586352, ISSN: 0957-4166 * |
G. MENTINK ET AL.: "Allenylmethylsilanes as Nucleophiles in N-Acyliminium Ion Chemistry", ORGANIC LETTERS, vol. 4, no. 20, 2002, USAMERICAN CHEMICAL SOCIETY, pages 3497 - 3500, XP002455238 * |
GUINDON ET AL., ORG. LETT., vol. 3, no. 15, 2001, pages 2293 - 2296 |
KNOUZI ET AL., TETRAHEDRON LETT., vol. 28, no. 16, 1987, pages 1757 - 1760 |
KNOUZI N ET AL: "INTRAMOLECULAR CYCLIZATION OF OMEGA-PRIMARY AMINO ELECTROPHILIC OLEFINS TO FUNCTIONALIZED PYRROLIDINES AND PIPERIDINES", TETRAHEDRON, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 28, no. 16, 1987, pages 1757 - 1760, XP002031799, ISSN: 0040-4020 * |
LIST B ET AL: "Practical Synthesis of (E)-alpha,beta-Unsaturated Esters from Aldehydes", ADVANCED SYNTHESIS AND CATALYSIS, WILEY-VCH, WEINHEIM, DE, vol. 347, 2005, pages 1558 - 1560, XP002390820, ISSN: 1615-4150 * |
MARSZAK I ET AL: "RECHERCHES SUR LES AMINOACIDES ET LEURS DERIVES. I. - SUR LA SYNTHESE DES AMINOACIDES A PARTIR DES AMINES TERTIAIRES A FONCTION ACETYLENIQUE VRAI AMINO ACIDS AND THEIR DERIVATIVES. I. THE SYNTHESIS OF AMINO ACIDS FROM TERTIARY AMNES HAVING A TRUE ACETYL", BULLETIN DE LA SOCIETE CHIMIQUE DE FRANCE, SOCIETE FRANCAISE DE CHIMIE. PARIS, FR, 1959, pages 182 - 185, XP009064176, ISSN: 0037-8968 * |
MARSZAK, OLOMUCKI, BULL. SOC. CHIM. FR., 1959, pages 182 - 185 |
MENTINK ET AL., ORG. LETT., vol. 4, no. 20, 2002, pages 3497 - 1500 |
PERRON ET AL., TETRAHEDRON LETT., vol. 44, 2003, pages 6553 - 6556 |
PERRON J ET AL: "First synthesis of pyrrolo[1,2:1',2']azepino[5,6-b]indole derivatives", TETRAHEDRON LETTERS, ELSEVIER, AMSTERDAM, NL, vol. 44, no. 35, 25 August 2003 (2003-08-25), pages 6553 - 6556, XP004442799, ISSN: 0040-4039 * |
STAMMER, WEBB, J. ORG. CHEM., vol. 34, no. 8, 1969, pages 2306 - 2311 |
Y. GUINDON ET AL.: "Intramolecular Aminyl and Iminyl Radical Additions...", ORGANIC LETTERS, vol. 3, no. 15, 2001, USAMERICAN CHEMICAL SOCIETY, pages 2293 - 2296, XP002455239 * |
Also Published As
Publication number | Publication date |
---|---|
CA2674568A1 (fr) | 2008-07-31 |
EP2111391B1 (fr) | 2012-10-31 |
EP2111391A1 (fr) | 2009-10-28 |
EP2111391B9 (fr) | 2013-05-29 |
US20100240754A1 (en) | 2010-09-23 |
JP2010515767A (ja) | 2010-05-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2840903A1 (fr) | Derive de glucose et de vitamine f, compositions le comprenant et utilisations pour ameliorer l'etat des poils et des cheveux | |
KR101517630B1 (ko) | 4-히드록시페녹시 아세트산 유도체의 용도 | |
FR2855752A1 (fr) | Utilisation cosmetique des sophorolipides comme agents regulateurs de la masse adipeuse sous-cutanee et application a l'amincissement | |
EP1937619B1 (fr) | Nouveaux derives d'hydroxy-acides gras insatures et leur utilisation dermo cosmetologique | |
EP2379484B1 (fr) | Ester de diol et d'acide gras polyinsature comme agent anti-acne | |
EP2111391B9 (fr) | Nouveaux derives amino-acides gras insatures et leur utilisation dermo cosmetologique | |
EP1878470A1 (fr) | Procédé de dépigmentation de la peau | |
FR3026011A1 (fr) | Composition contenant au moins un inhibiteur de certaines chimiokines, son procede d'obtention et son utilisation dermocosmetique pharmaceutique | |
EP1442737B1 (fr) | Utilisation d'un dérivé d'acide (dihydro)jasmonique pour le traitement des peaux sèches | |
FR3067027B1 (fr) | Derives de resorcinol pour leur utilisation cosmetique | |
FR2913685A1 (fr) | Nouveaux derives amino-acides gras insatures et leur utilisation dermo-cosmetologique | |
FR2759370A1 (fr) | Nouveaux derives de l'acide salicylique et leur utilisation dans les compositions cosmetiques ou dermatologiques | |
EP2790659B1 (fr) | Composition cosmétique pour stimuler les fonctions cellulaires anti-vieillissement de la peau | |
EP2440551B1 (fr) | Mono esters et bis esters d'acide gras insature sur l'acide ascorbique et leurs utilisations cosmetiques | |
EP0799049A1 (fr) | Composition cosmetique ou pharmaceutique, notamment dermatologique et milieu de culture, contenant un extrait de smelophyllum capense | |
WO2008129188A1 (fr) | Procédé de dépigmentation des matières kératiniques à l'aide de composés carbamates de vitamine c, et utilisations desdits composés | |
WO2003024911A1 (fr) | PROCEDE DE PREPARATION D'ACIDES α-(PHENYL)CINNAMIQUE ET/OU DE LEURS DERIVES ET LEUR UTILISATION DANS UNE COMPOSITION COSMETIQUE | |
EP0679087A1 (fr) | Composition cosmetique ou pharmaceutique, notamment dermatologique, contenant un extrait de vismia. | |
WO2016046457A1 (fr) | Utilisation dermocosmetique ou pharmaceutique d'une composition contenant au moins un inhibiteur de certaines cytokines chimio-attractantes | |
FR2903901A1 (fr) | Utilisation de composes antagonistes des canaux calcium pour depigmenter la peau. | |
FR2913422A1 (fr) | Procede de traitement cosmetique employant des analogues d'ascorbigene, compositions cosmetiques et composes | |
JP2018509422A (ja) | 3−ヒドロキシシクロペンチル酢酸から誘導される新規化合物の合成方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08701535 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2674568 Country of ref document: CA |
|
ENP | Entry into the national phase |
Ref document number: 2009545919 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2008701535 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12523231 Country of ref document: US |