WO2020221970A1 - Methode de production de peptides ou proteines ou peptidomimetiques - Google Patents
Methode de production de peptides ou proteines ou peptidomimetiques Download PDFInfo
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- WO2020221970A1 WO2020221970A1 PCT/FR2020/000158 FR2020000158W WO2020221970A1 WO 2020221970 A1 WO2020221970 A1 WO 2020221970A1 FR 2020000158 W FR2020000158 W FR 2020000158W WO 2020221970 A1 WO2020221970 A1 WO 2020221970A1
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- trifluoromethyl
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
- C07K1/06—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length using protecting groups or activating agents
- C07K1/061—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length using protecting groups or activating agents using protecting groups
- C07K1/063—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length using protecting groups or activating agents using protecting groups for alpha-amino functions
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
- C07K1/04—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length on carriers
- C07K1/042—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length on carriers characterised by the nature of the carrier
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
- C07K1/06—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length using protecting groups or activating agents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
- C07K1/06—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length using protecting groups or activating agents
- C07K1/061—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length using protecting groups or activating agents using protecting groups
- C07K1/062—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length using protecting groups or activating agents using protecting groups for alpha- or omega-carboxy functions
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K7/00—Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
- C07K7/04—Linear peptides containing only normal peptide links
- C07K7/06—Linear peptides containing only normal peptide links having 5 to 11 amino acids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Definitions
- the present invention relates to the chemistry of peptides or proteins or peptidomimetics, and more particularly their syntheses by chemical means from bifunctional molecules, and in particular from a, b or g-amino acids and / or a, b or g- acids. hydroxylated and / or a, b or g-mercapto acids.
- the invention relates to a process for producing peptides or proteins or peptidomimetics in solution.
- This process does not use conventional protective groups such as te / f-butoxycarbonyl (Boc) or fluorenylmethoxycarbonyl (Fmoc) on the amine function of the a, b, or g-amino acid.
- Boc te / f-butoxycarbonyl
- Fmoc fluorenylmethoxycarbonyl
- This process is based on the use of a, b, or g-amino acids or a, b, or g-hydroxy acids or a, b, or g-mercapto acids activated in the form, respectively, of 2,2 - bis (trifluoromethyl) -1, 3-oxazolidin-5-one or 2,2-bis (trifluoromethyl) -1, 3-oxazinan-6-one, or 2,2-bis (trifluoromethyl) -1, 3-oxazepan -7-one or 2,2-bis (trifluoromethyl) -1, 3-dioxolan-4-one, or 2,2-bis (trifluoromethyl) -1, 3-dioxan-4-one, or 2,2-bis (trifluoromethyl) -1, 3-dioxepan-4-one, or 2,2-bis (trifluoromethyl) -1, 3-oxathiolan-5-one, or 2,2-bis (trifluoromethyl) -1, 3- oxathian- 6-one
- the anchor molecule is linked to a molecule having at least two electrophilic and / or nucleophilic functional groups, and in particular to a first acid a, b, or g-amino or acid a, b, or g-hydroxylated or a, b , or g-mercapto acid, which will then be the subject of successive elongation / iteration steps to lead to peptides or proteins or peptidomimetics.
- This process makes it possible to obtain peptides or proteins or peptidomimetics in a more efficient way (that is to say with a reduced number of steps), faster, purer or easier to purify than the methods on solid support or in current solution. It is easy to automate.
- the most frequently used peptide or protein or peptidomimetic synthesis routes involve temporary protection of the amine (Na) function of amino acids.
- the main protective groups used are the te / f-butoxycarbonyl group, this approach is commonly called the “Boc” strategy, and the fluorenylmethoxycarbonyl group, this approach is commonly called the “Fmoc” strategy.
- These two peptide synthesis routes are known to those skilled in the art (see Section 7-5 of the “Biochemistry” manual by D. Voet and J .G. Voet, 2 nd edition, Brussels 2005).
- the amino acids are supplied in the protected state on the amine function (Na) by the Fmoc or Boc group, and are involved directly in the activation / coupling reactions.
- Amino acids can be used in liquid phase or on a solid support; in the latter case, the amino acid protected on the amine function (Na) is fixed on a resin insoluble in organic solvents, this is the synthesis of Merrifield (J. Am. Chem. Soc., 1963, 85, 2149- 2154). It is a well-controlled process, which however has some drawbacks such as: the cost of reagents used in excess and the lack of homogeneity of the peptides synthesized. The system is said to be degenerate, which generates additional costs of purifications by preparative high performance liquid chromatography.
- NCAs N-carboxyanhydrides
- the problem that the present application proposes to solve is the design of a new methodology for synthesizing peptides or proteins or peptidomimetics making it possible to remove the locks linked to their access or production left in the prior art.
- the problem is solved by a method of synthesizing peptides or proteins or peptidomimetics in liquid phase which comprises the combination of two essential characteristics which are detailed below.
- the first object of the present invention is a process for the synthesis of peptides or proteins or peptidomimetics by successive elongation of the second end of a molecule of type Q a - E - Q b , where Q a and Q b can be identical or different. and represent an electrophilic and / or nucleophilic function, and E represents a spacer.
- Said second end may in particular be a primary or secondary amine, a hydroxyl or a thiol, of an a, b, g or d-amino acid or a, b, g or d-hydroxyl acid or a, b, g or d -mercapto acid or peptide or protein or peptidomimetic, characterized in that said units are selected from the group formed by: acids a, b, g or d- amino or acids a, b, g or d-hydroxylated or a, b , g or d-mercapto acids (natural or unnatural or synthetic).
- the first end of said Q a - E - Q b type molecule (for example of said a, b, g or d-amino acid or a, b, g or d-hydroxy acid or a, b, g or d-mercapto acid) or of said peptide or protein or peptidomimetic is attached to an anchoring molecule soluble in organic solvents such as halogenated solvents (methylene chloride, chloroform), ethyl acetate, tetrahydrofuran, 2 -methyletetrahydrofuran, isooctane, cyclohexane, hexane (s), methylcyclohexane, methyl tert-butyl ether or aromatic solvents such as benzene or toluene or any other suitable solvent.
- organic solvents such as halogenated solvents (methylene chloride, chloroform), ethyl acetate, tetrahydr
- the first essential feature is the use of a family of specific anchor molecules.
- the anchoring molecules are polyolefins or oligomers of polyolefins or polyalkenes.
- the method according to the invention provides access to high purity peptides or proteins or peptidomimetics (natural or unnatural or synthetic). This process generates savings of steps and atoms due to the absence of the use of protective groups (on the amine, hydroxyl or thiol functions of the main chain) and of coupling agents and therefore, financial savings. In the end, the process is more respectful of the environment.
- the second essential feature is the use of bifunctional molecules of type Q a - E - Q b in which the groups Q a and Q b may be the same or different, and are selected from the electrophilic groups and / or the nucleophilic groups, and E represents a spacer.
- Q a and Q b are selected from the group formed by chemical functions such as: alcohols, aldehydes, primary amines, secondary amines, azides, ethynils, halogens, thiols, vinyls, and / or the spacer E is selected from the group formed by structural units such as: aromatic, heteroaromatic, saturated alkyl chains (branched or not), unsaturated alkyl chains (branched or not), glycols (and preferably polyethylene glycol).
- Figure 1 shows the structure of these activated forms.
- the latter are prepared from a, b or g-amino acids (this expression meaning here: a-amino acids, b-amino acids or g-amino acids), or a, b or g-hydroxyl acids (this expression meaning here: a-hydroxy acids, b-hydroxy acids or g-hydroxy acids), or a, b or g-mercapto acids (this expression meaning here: a-mercapto acids, b-mercapto acids or g-mercapto acids) corresponding.
- a, b or g-amino acids this expression meaning here: a-amino acids, b-amino acids or g-amino acids
- a, b or g-hydroxyl acids this expression meaning here: a-hydroxy acids, b-hydroxy acids or g-hydroxy acids
- a, b or g-mercapto acids this expression meaning here: a-mercapto acids, b
- the method for synthesizing peptides or proteins or peptidomimetics proceeds by successive elongation of the second end (primary or secondary amine, hydroxyl or thiol) of a peptide or protein or peptidomimetic chain whose first end is attached to a molecule anchor soluble in an organic solvent.
- Said anchor molecule comprises a polyolefin or polyolefin or polyalkene oligomer chain having at least 10 monomer units, and preferably between 15 and 350 monomer units.
- said polyolefin chain is a polyisobutene (PIB) chain.
- said anchoring molecule can be a polyolefin.
- the polyolefin chain can be functionalized at at least one of its ends.
- the polyolefin or polyolefin or polyalkene oligomer chain can comprise a number of unsaturated carbon-carbon bonds not exceeding 5%, and preferably not exceeding 3%, and / or the anchor molecule can exhibit a number of unsaturated carbon-carbon bonds. mass average molecular weight between 600 and 20,000, and preferably between 700 and 15,000.
- ⁇ Y is O, S, CH2 or absent
- ⁇ X b is selected from the group formed by: -OH, -IMH2, -NHR a , -SH, - CX a R a R b , -C 6 H 3 R c (CR a X a ),
- R b is selected from the group consisting of -H, -Aryl, - Heteroaryl, -Alkyl, and
- R c is selected from the group consisting of -H, -Alkyl, -O-Alkyl, -Aryl, -O-Aryl, -Heteroaryl, -O-Heteroaryl;
- X a can be a primary or secondary amine function, an alcohol, a thiol or a phenol.
- Certain GDP derivatives used in the context of the present invention are commercially available as ligands for homogeneous catalysis.
- 2-methyl-3- [polyisobutyl (12)] propanol (mass average molecular weight 757, including terminal functionalization) or 4- [polyisobutyl (18)] phenol (mass weight average molecular weight 1104, including terminal functionalization) which are distributed, respectively, under the references 06-1037 and 06-1048 by the company Strem Chemicals.
- an anchoring molecule soluble in an organic solvent as described above is capable also of acting as a liquid support or a group.
- an anchoring molecule soluble in an organic solvent as described above facilitates the purification of a, b or g-amino acids or a, b or g-hydroxy acids or a, b or g-mercapto acids or peptides or proteins or peptidomimetics anchored by simple extraction (washing) or simple filtration on silica.
- a simple extraction or a simple filtration makes it possible to obtain the anchored peptides or proteins or peptidomimetics with high chemical purity.
- anchoring molecules are used, or anchoring molecules which can be synthesized simply and directly from commercially available precursors, in particular certain polyisobutenes derivatives ( GDP).
- the a, b or g-amino acids or a, b or g-hydroxylated acids or a, b or g-mercapto acids are reacted in their activated forms, respectively of, 2, 2-bis (trifluoromethyl) -1, 3-oxazolidin-5-one or 2,2- bis (trifluoromethyl) -1, 3-dioxolan-4-one or 2,2-bis (trifluoromethyl) -1, 3-oxathiolan -5-one or (2,2-bis (trifluoromethyl) -1, 3-oxazinan-6-one, 2,2-bis (trifluoroméhyl) -1, 3-dioxan-4-one, 2,2- bis ( trifluoromethyl) -1, 3-oxathian-6-one, 2,2-bis (trifluoromethyl) -1, 3-oxazepan-7-one, 2,2- bis (trifluoromethyl) -1, 3-dioxepan-4-one
- the reaction is carried out in any inert liquid solvent (or mixture) capable of to dissolve the reagents.
- Applicable solvents include, but are not limited to halogenated and non-halogenated hydrocarbons.
- the preferred solvents are tetrahydrofuran, ethyl acetate, 2-methyltetrahydrofuran, propylene carbonate, or any other solvent or mixture of solvents capable of dissolving these two chemical species.
- the reactions between the GDP derivatives and the activated a, b or g-amino acids or activated a, b or g-hydroxylated acids or activated a, b or g-mercapto acids take place in batch chemistry (especially in a flask or cistern), but preferably, they are carried out in flow chemistry (also called continuous flow chemistry).
- the a, b or g-amino acids or a, b or g-hydroxylated acids or a, b or g-mercapto acids having side chains incompatible with the conditions of the reaction of anchoring / elongation or iteration can be temporarily masked by an appropriate protective group. It can in particular be chosen from the group formed by:
- Boc te / f-butoxycarbonyle
- Fmoc fluorenylmethoxycarbonyl
- Trt trityl
- Mtr 4-methoxy-2,3,6-trimethylbenzenesulphonyl
- said anchoring molecule reacts with a first acid a, b, or g-amino or acid a, b, or g-hydroxylated or a, b, or y-mercapto acid activated ( here abbreviated AAA1), resulting in a covalent bond between the acid a, b, or g-amino or acid a, b, or g-hydroxylated or a, b, or g-mercapto acid and the anchor molecule.
- AAA1 a first acid a, b, or g-amino or acid a, b, or g-hydroxylated or a, b, or y-mercapto acid activated
- said peptide or protein or peptidomimetic chain is formed of n units of a, b or g-amino acids or a, b or g-hydroxyl acids or a, b or g-mercapto acids ; its second end is another unit of a, b or g-amino acid or a, b or g-hydroxyl acid or a, b or g-mercapto acid, here abbreviated AAAn.
- AAA g-amino acid or a, b or g-hydroxylated acid or a, b or g-mercapto acid
- Z NH, N-alkyl, N-aryl, O, S
- R 1 , R 2, 3 , R 4 H and / or alkyl and or aryl
- Reaction scheme No. 2 General process for obtaining a peptide
- a, b or g-amino acids and / or acids it is possible to use in said peptide or protein or peptidomimetic chain, a, b or g-amino acids and / or acids. a, b or g-hydroxylated and / or a, b or g-mercapto natural and / or unnatural and / or synthetic acids.
- the spacer E can be an entity selected from the group formed by:
- the molecules of the Q a - E - Q b type carry a terminal function selected from the group formed by the primary amine function, the secondary amine function, the hydroxyl function or the thiol function.
- said a, b or g-amino acids, said a, b or g-hydroxylated acids and said a, b or g-mercapto acids represent particular cases of bifunctional molecules of the type Q a - E - Q b . It is the same for said d-amino acids, said d-hydroxy acids and said d-mercapto acids, which however are not necessarily involved in the reaction in their activated form, like other bifunctional molecules which are not a, b or g-amino acids, acids a, b or g-hydroxylated or a, b or g-mercapto acids.
- the bifunctional molecule Q a - E - Q b can have a molecular structure, selected in particular from epoxides, aziridines, thiiranes.
- peptidomimetics comprising an epoxy-succinate group, like the E-64 peptide, or even azirido peptides, like Miraziridine, can be prepared according to the invention.
- bifunctional molecules of type Q a - E - Q b which can be used in the context of the present invention: sarcosine, 2- (1-aminoethyl) -1, 3-oxazole- acid. 4-carboxylic and (2R, 3R, 4R) -3-hydroxy-2,4,6-trimethyl-heptanoic acid.
- Said bifunctional molecule Q a - E - Q b can in particular be an amino acid according to the definition which is given below. It can also be a peptide, for example a dipeptide, a tripeptide, a tetrapeptide, a pentapeptide, a hexapeptide, a heptapeptide, an octapeptide, a nonapeptide, a decapeptide, or an even longer peptide.
- bifunctional molecules can be introduced into the peptide or protein or peptidomimetic chain by known chemical reactions. They do not bear a protective group on a terminal function selected from the group formed by the primary amine function, the secondary amine function, the hydroxyl function or the thiol function.
- a protective group on a terminal function selected from the group formed by the primary amine function, the secondary amine function, the hydroxyl function or the thiol function For example, if said bifunctional molecule is an amino acid or a peptide, it does not bear N-terminal protection; it is possible to protect its side chains or side functions, which are not modified during the elongation of the peptide.
- said a, b or g-amino acids, said a, b or g-hydroxy acids and said a, b or g-mercapto acids are preferentially used in their activated forms.
- the units derived from bifunctional molecules which are not selected from among the a, b or g-amino acids, the a, b or g-hydroxyl acids and the a, b or g-mercapto acids, can advantageously be attached to the end C-terminal of said peptidomimetic, or on the terminal end (in particular by functionalization of the primary or secondary amine, hydroxyl or thiol function), or else on the side chain (of at least an a, b or g-amino acid or a, b or g-hydroxylated acid or a, b or g-mercapto acid), or between two units selected from among the a, b or g-amino acids, the a acids, b or g-hydroxy and a, b or g-ercapto acids.
- the number of units resulting from bifunctional molecules which are not selected from among the a, b or g-amino acids, the a, b or g-hydroxyl acids and the a, b or g-mercapto acids does not exceed 50% by number, and preferably does not exceed 25% by number.
- an organic solvent such as cyclohexane, l heptane (s) or any other suitable solvent
- peptides or proteins or peptidometics of high purity, after deprotection of the side chains (if necessary), then detachment of their anchoring molecule after the last iteration step. , to be used according to their destination, for example as an active principle for preclinical trials, clinical care or any other applications.
- the anchor molecules can be reused (recycled) in the process according to the invention.
- a second object of the present invention is a molecule which can be obtained by the process according to the invention.
- Said molecule comprises an a, b or g-amino acid or a, b or g-hydroxy acid or a, b or g-mercapto acid or peptide or protein or peptidomimetic attached to an anchor molecule.
- amino acid in the context of the present invention, we mean: natural amino acids and unnatural or synthetic amino acids.
- Natural amino acids include the L form of so-called standard proteinogenic amino acids which can be found in proteins of natural origin, ie: alanine (Ala), arginine (Arg), asparagine (Asn) , aspartic acid (Asp), cysteine (Cys), glutamine (Gin), glutamic acid (Glu), glycine (Gly), histidine (His), isoleucine (Ile), leucine (Leu), lysine (Lys), methionine (Met), phenylalanine (Phe), proline (Pro), serine (Ser), threonine (Thr), tryptophan (Trp), tyrosine (Tyr) and valine (Val). They also include other proteinogenic amino acids, and in particular pyrrolysine and selenocysteine.
- Unnatural amino acids include the D-form of the natural amino acids defined above, the homo forms of certain natural amino acids (such as: arginine, lysine, phenylalanine and serine), and the nor forms of leucine and valine.
- Unnatural amino acids also include all synthetic amino acids. They also include unnatural amino acids, such as:
- iPr isopropyl-lysine (CH 3 ) 2C-NH- (CH 2 ) 4-CH (COOH) (NH 2 );
- Aib 2-aminoisobutyric acid
- F-trp N-formyl-tryptophan
- Orn ornithine
- Nal (2 ’) 2-naphthylalanine.
- activated amino acid is used herein to denote activated a, b, or g-amino acids respectively in the form of 2,2-bis (trifluoromethyl) -1, 3-oxazolidin -5-one or (2,2-bis (trifluoromethyl) -1, 3-oxazinan-6-one or 2,2-bis (trifluoromethyl) -1, 3-oxazepan-7-one, and their derivatives, with the possibility or not of a protective group on the side chain.
- the present invention is also applicable to the synthesis of peptidomimetics.
- the precursors used for this synthesis are defined as follows:
- a, b or g-hydroxyl acid is used herein according to the rules of terminology of IUPAC, known to those skilled in the art. Examples are compounds such as lactic acid, malic acid, tartaric acid, salicylic acid or g-hydroxybutyric acid, which are found in nature. In the context of the present invention, it is also possible to use all the “unnatural” a, b or g-hydroxylated acids which also include all the synthetic a, b or g-hydroxylated acids.
- activated a, b or g-hydroxy acid denotes all natural and / or unnatural and / or synthetic a, b or g-hydroxy acids, which have been activated respectively in the form of 2,2-bis ( trifluoromethyl) -1, 3-dioxolan-4-one or 2,2-bis (trifluoromethyl) -1, 3- dioxan-4-one or 2,2-bis (trifluoromethyl) -1, 3-dioxepan-4-one , and their derivatives, with the possibility or not of a protective group on the side chain.
- a, b or g-mercapto acid is used here according to the rules of terminology of IUPAC, known to those skilled in the art.
- Examples are compounds such as thioglycolic acid, 3-mercaptopropionic acid, mercaptobutanoic acid.
- activated a, b or g-mercapto acid denotes all compounds resulting from the activation of a, b or g-mercapto acids (natural, unnatural or synthetic) in the form of 2,2-bis ( trifluoromethyl) -1, 3-oxathiolan-5-one or 2,2- bis (trifluoromethyl) -1, 3-oxathian-6-one or 2,2-bis (trifluoromethyl) -1, 3-oxathiepan-7-one , and their derivatives, with the possibility or not of a protective group on the side chain.
- a, b, g and d refers to the position of the carbon substituted by the amine (primary or secondary) or hydroxyl or thiol function with respect to the carbon of the carboxylic acid function. (C-terminal).
- peptidomimetic is used according to the state of the art as a functional term for a molecule capable of mimicking or blocking a peptide with respect to its interaction with a specific receptor.
- a peptidomimetic can comprise units which are not amino acids.
- DMF dimethylformamide
- DMSO dimethylsulfoxide
- THF tetrahydrofuran
- a first essential characteristic of the process according to the invention is the use of a, b or g-amino acids or a, b or g-hydroxylated acids or a, b or g-mercapto acids activated in the form of 2, respectively, 2-bis (trifluoromethyl) -1, 3-oxazolidin-5-one or (2,2-bis (trifluoro-methyl) -1, 3-oxazinan-6-one or 2,2-bis (trifluoromethyl) -1, 3-oxazepan-7-one or 2,2-bis (tri-fluoromethyl) -1, 3-dioxolan-4-one or 2,2-bis (trifluoromethyl) -1, 3-dioxan-4-one or 2, 2-bis (tri-fluoromethyl) -1, 3-dioxepan-4-one or 2,2-bis (trifluoromethyl) -1, 3- oxathiolan-5-one or 2,2-bis (trifluoromethyl) -1, 3 -oxathian-6
- A, b or g-amino acids or a, b or g-hydroxylated acids or a, b or g-mercapto acids activated in the form of 2,2-bis (trifluoromethyl) -1, 3-oxazolidin-5- respectively one or (2,2-bis (trifluoromethyl) -1, 3-oxazinan-6-one or 2,2-bis (trifluoromethyl) -1, 3-oxazepan-7- one or 2,2-bis (trifluoromethyl) -1, 3-dioxolan-4-one or 2,2-bis (trifluoromethyl) -1, 3-dioxan-4-one or 2,2-bis (trifluoromethyl) -1 , 3-dioxepan-4-one or 2,2-bis (trifluoromethyl) -1, 3- oxathiolan-5-one or 2,2-bis (trifluoromethyl) -1, 3-oxathian-6-one or 2,2 -bis (trifluoromethyl) - 1, 3-ox
- X NH, N-alkyl, N-aryl, O, S,
- the anchoring molecules are polyolefins or more precisely oligomers of polyolefins (polyolefins also being called polyalkenes) and their derivatives, that is to say they are functionalized.
- this method of synthesizing peptides or proteins or peptidomimetics (protected or not on their side chains), in the liquid phase is characterized in that one starts from an anchoring molecule and an a, b or g-amino acid or a, b or g-hydroxyl acid or a, b or g-mercapto acid activated respectively in the form of 2,2-bis (trifluoromethyl) -1, 3-oxazolidin- 5-one or (2,2- bis (trifluoromethyl) -1, 3-oxazinan-6-one or 2,2-bis (trifluoromethyl) -1, 3-oxazepan-7-one or
- the elongation / iteration step consists in adding or condensing the following a, b or g-amino acids or a, b or g-hydroxylated acids or a, b or g-mercapto acids, which are possibly protected on their side chain (in the form of ester, ether, thioester, thioether or any other functions chemicals compatible with this process).
- the anchoring molecule plays a role of protective group of the carboxylic acid function (C-terminal) of the first acid a, b or g-amino or acid a, b or g-hydroxylated or a, b or g-mercapto acid.
- this method of peptide or protein or peptidomimetic synthesis can be carried out using a fragment of a suitably protected peptide or protein or peptidomimetic and an a, b or g-amino acid or a, b or g acid. -hydroxylated or a, b or g-mercapto acid or peptide or protein or peptidomimetic, anchored on a GDP molecule, allowing after coupling to obtain a longer peptide or protein or peptidomimetic.
- this method of peptide or protein or peptidomimetic synthesis can be carried out using molecules Q a - E - Q b having at least two functional groups Q a and Q b , which are identical or different, and which are selected from the electrophilic and / or nucleophilic chemical functions.
- Examples of such structures are styrene oxide, aminothiophenoles or 1-azido-4- (bromomethyl) benzene.
- These molecules can be directly attached to the anchor molecule or introduced during synthesis on the amine function (primary or secondary) or hydroxyl or thiol, a, b or g-amino acids or a, b or g-hydroxylated acids or a, b or g-mercapto acids or peptides or anchored proteins or peptidomimetics.
- the process according to the invention can be carried out in any inert liquid solvent (or mixture) capable of dissolving the reactants (halogenated or not), at a temperature typically between about -20 ° C and about 150 ° C, in a reactor ( in batch or in flow).
- the a, b or g-amino acid or a, b or y-hydroxylated acid or a, b or g-mercapto acid or peptide or protein or peptidomimetic anchored on a GDP molecule is characterized in that the terminal function of said a, b or y-amino acid or a, b or g-hydroxylated acid or a, b or y-mercapto acid or peptide or protein or peptidomimetic or any other molecule having at least two functional groups is linked by a covalent bond (ester, ether, amide, thioester or any other chemical functions), thus giving a very low solubility in water ( ⁇ 30 mg / ml). It is in this sense that the GDP derivative acts as a liquid carrier or solubilizing molecule for the synthesis of peptides or proteins or peptidomimetics.
- Reaction Scheme No. 4 shows the reaction of an activated amino acid in the form of 2,2-bis (trifluoromethyl) -1, 3-oxazolidin-5-one with a derivative of polyisobutene (abbreviated PIB) which is terminated by a phenol function.
- PIB polyisobutene
- the ⁇ -amino acid is L-phenylalanine (Phe).
- the first ⁇ -amino acid of the future peptide is attached to the anchor molecule via an ester-type covalent bond.
- Reaction diagram 5 shows the elongation or iteration step, i.e. the attachment of a second unit of amino acid, to the first amino acid attached to the anchor molecule.
- second ⁇ -amino acid is L-tryptophan (Trp).
- this process allows, by successive iterations, to add units of a, b or g-amino acids or a, b or g-hydroxylated acids or a, b or g-mercapto acids on the last acid a, b or g-qhi ⁇ h ⁇ or a, b or g-hydroxylated acid or a, b or g-mercapto acid or peptide or protein or peptidomimetic fixed on the derivative of PIB, during synthesis, to obtain a peptide or protein or peptidomimetic having the desired sequence.
- the peptide or protein or peptidomimetic being chemically linked to the anchor molecule, it can be separated at any time, and in particular after the last iteration step, of all polar products by extraction in an organic solvent such as hexane (s) or cyclohexane and water or in a water / ethanol or water / acetonitrile mixture.
- an organic solvent such as hexane (s) or cyclohexane and water or in a water / ethanol or water / acetonitrile mixture.
- the peptide or protein or peptidomimetic can be detached from the anchor molecule; thus the peptide or the protein or the peptidomimetic loses its solubility in an apolar solvent, and it can be separated from the anchor molecule, for use according to its purpose.
- the derivation (or anchoring) of an a, b or y-amino acid or a, b or g-hydroxylated acid or a, b or y-mercapto acid or peptide or protein or peptidomimetic (protected or not on its side chain (s)) with a derivative of PIB in fact causes a significant increase in the solubility of said a, b or y-amino acid or a, b acid or g-hydroxylated or a, b or y-mercapto acid or peptide or protein or peptidomimetic anchored in organic liquid phase.
- these a, b or y-amino acids or a, b or g-hydroxy acids or a, b or y-mercapto acids or peptides or proteins or peptidomimetics anchored on a derivative of PIB become soluble in organic solvents, such as than halogenated solvents (methylene chloride, chloroform), ethyl acetate, tetrahydrofuran, 2-methyletetrahydrofuran, isooctane, cyclohexane, hexane (s), methylcyclohexane, methyl tert-butyl ether propylene carbonate or aromatic solvents such as benzene or toluene or any other suitable solvent.
- organic solvents such as than halogenated solvents (methylene chloride, chloroform), ethyl acetate, tetrahydrofuran, 2-methyletetrahydrofuran, isooctane, cycl
- a, b or y-amino acids or a, b or g-hydroxylated acids or a, b or y-mercapto acids or peptides or proteins or peptidomimetics anchored on a GDP derivative have a high partition coefficient for the phase organic during extraction / decantation, thus allowing simple and rapid purification.
- their solubility in solvents such as water or a mixture of water / ethanol or water / acetonitrile is very low.
- the reaction between a derivative of PIB and the first acid a, b or y-amino or acid a, b or g-hydroxylated or a, b or y-mercapto acid activated leads to a product whose solubility in water is low ( ⁇ 30 mg / ml).
- FIG. 6 shows an example of the step of detaching an octapeptide having the sequence Phe-Tpr-Cys (Bzl) -Trp-Cys (Bzl) -Trp-Trp-Cys (Bzl) -NH2, from anchor molecule (derivative of PIB terminated by a phenol function), on which the peptide is anchored by the carboxylic acid function (C-terminal) of L-phenylalanine.
- the side chains of L-cysteine residues are protected by a benzyl group (Bzl).
- the free peptide is insoluble in apolar solvents (ie cyclohexane, hexane (s)), which allows it to be easily separated from the anchor molecule.
- the anchor molecule can be recovered for reuse in the process.
- Reaction scheme 6 Detachment of an octapeptide from the anchor molecule The peptide precipitates in solvents such as: ethyl ether, cyclohexane or any other suitable solvent. It can then be used according to its intended purpose.
- solvents such as: ethyl ether, cyclohexane or any other suitable solvent. It can then be used according to its intended purpose.
- the process according to the invention uses polyolefins or more precisely oligomers of polyolefins (polyolefins also being called polyalkenes), and their derivatives as anchoring molecules or liquid support or protective group, whether for the carboxylic acid function ( C-terminal) of the a, p or y-amino acid or a, b or g-hydroxy acid or a, b or y-mercapto acid or peptide or protein or peptidomimetic, or of the side chain of said a, b acid or y- amino or a, b or g-hydroxylated acid or a, b or y-mercapto acid or peptide or protein or peptidomimetic (in the form of ester, amide, ether, thioester, thioether or any other suitable chemical functions) in liquid phase.
- polyolefins also being called polyalkenes
- their derivatives as anchoring molecules or liquid support or protective group,
- Polyolefin molecules consist of a chain of carbon atoms linked together by single bonds. They can include branches made up of alkyl groups identical or different, but preferably identical. Preferably, the polymers consist of a number of monomer units of at least 10 and preferably between 15 and 350. Homopolymers are preferred, but copolymers (saturated or not) can be used. In the case of unsaturated polymers or copolymers, the number of unsaturated bonds in the chain of carbon atoms advantageously does not exceed 5%, and preferably does not exceed 3%.
- PIB polyisobutenes
- ⁇ Ar is an aromatic or heteroaromatic group, substituted or not;
- A is either absent or a group selected from the group formed by: CH2, CH2-CH2, S;
- R f is a group selected from the group formed by H, aryl, hetero-aryl, alkyl, O-alkyl, O-aryl, O-hetero-aryl;
- R q is a group selected from the group consisting of H, alkyl, O-alkyl, aryl, hetero-aryl, O-aryl, O-hetero-aryl;
- n is an integer which is typically greater than 10, and advantageously between 15 and 350.
- the number m is either 0 or 1.
- the group X e can be a function in a primary or secondary amine, an alcohol, a thiol or a phenol.
- these anchoring molecules are linked to the carboxylic acid function of an a, b or g-amino acid or a, b or g-hydroxylated acid or a, b or g-mercapto acid (C-terminal ) or all chemical functions of a molecule having at least two functional groups via a covalent bond.
- GDP derivatives a suitably functionalized form
- This term also encompasses here the derivatives of anchoring molecules which are not derivatives of polyisobutene, but which are derivatives of other polyolefins according to the definition which is given above; it includes in particular the derivatives of polyolefin oligomers.
- This functionalization of the anchor molecule is in general a terminal functionalization, preferably at one of the ends of the chain of carbon atoms; it is described below.
- the a, b or g-amino acids or a, b or g-hydroxy acids or a, b or g-mercapto acids or peptides or proteins or peptidomimetics can be functionalized on their side chains with derivatives of PIB , in the form of ester, ether, thioether, thioester or any other chemical functions compatible with the present process.
- the chains of polyolefins or oligomers of polyolefins or polyalkenes used as anchoring molecules are typically characterized by an average molecular mass by mass, but it is also possible to use chains of polyolefins or oligomers of polyolefins or polyalkenes called "homogeneous" which comprise identical molecules of a given chain length.
- the process for the synthesis of peptides or proteins or peptidomimetics, optionally protected on their side chains, in liquid phase (solution) according to the invention is characterized by the fact that an acid a, b or y- is solubilized.
- the PIB derivative acts as an anchoring molecule (also referred to here as a “liquid carrier” or “solubilizing molecule”) of the a, b or y-amino acid or a, b or g-hydroxyl acid or a, b or y-mercapto acid or peptide or protein or peptidomimetic or any other molecule having at least two functional groups.
- an anchoring molecule also referred to here as a “liquid carrier” or “solubilizing molecule” of the a, b or y-amino acid or a, b or g-hydroxyl acid or a, b or y-mercapto acid or peptide or protein or peptidomimetic or any other molecule having at least two functional groups.
- Said peptide or protein or peptidomimetic attached to this anchoring molecule is synthesized by successive attachment of a, b or y-amino acids or a, b or g-hydroxyl acids or a, b or y-mercapto acids or any other molecules having at least two functional groups on the last a, b or y-amino acid or a, b or g-hydroxy acid or a, b or y-mercapto acid or any other molecule having at least two functional groups.
- the anchor molecule also serves as a protective group for the carboxylic acid function (C-terminal) during the synthesis of the peptide or protein or peptidomimetic during successive iterations.
- the carboxylic acid function (C-terminal) of said a, b or y-amino acid or a, b or y-hydroxylated acid or a, b or y-mercapto acid or peptide or protein or peptidomimetic, optionally protected on its chain (s) (s) lateral (s), is linked by a covalent bond of ester, amide, thioester, or any other covalent chemical bond type, to a derivative of lipophilic PIB, giving a very low solubility in water ( ⁇ 30 mg / ml). It is in this sense that the GDP derivative acts as a liquid carrier or solubilizing molecule for the synthesis of peptides or proteins or peptidomimetics.
- This derivative of the a, b or y-amino acid or a, b or g-hydroxylated acid or a, b or y-mercapto acid or peptide or protein or peptidomimetic (protected or not on its side chains) with a derivative of PIB significantly increases the solubility of said a, b or y-amino acid or a, b or g-hydroxy acid or a, b or y-mercapto acid or anchored peptide or protein or peptidomimetic, in organic liquid phase.
- these a, b or g-amino acids or a, b or g-hydroxy acids or a, b or g-mercapto acids or peptides or proteins or peptidomimetics anchored on the derivative of PIB become soluble in organic solvents such as : halogenated solvents (methylene chloride, chloroform), ethyl acetate, tetrahydrofuran, 2-methyletetrahydrofuran, isooctane, cyclohexane, hexane (s), methylcyclohexane, methyl tert-butyl ether or aromatic solvents such as benzene or toluene or any other suitable solvent.
- organic solvents such as : halogenated solvents (methylene chloride, chloroform), ethyl acetate, tetrahydrofuran, 2-methyletetrahydrofuran, isooctane, cyclohexane
- a, b or g-amino acids or a, b or g-hydroxy acids or a, b or g-mercapto acids or peptides or proteins or peptidomimetics attached to a derivative of PIB have a high partition coefficient for the organic phase during extraction / decantation in the presence of cyclohexane or hexane (s) and water or a water / ethanol mixture or else water / acetonitrile, thus allowing their simple and rapid purification.
- the starting point is a molecule having at least two functional groups or an acid a, b, or g-amino or a, b, or g-hydroxy acid or a, b, or g-mercapto acid activated respectively in the form of 2,2-bis (trifluoromethyl) -1, 3-oxazolidin-5 -one or (2,2- bis (trifluoromethyl) -1, 3-oxazinan-6-one or 2,2-bis (trifluoromethyl) -1, 3-oxazepan-7-one or
- the method for synthesizing peptide or protein or peptidomimetic according to the invention can be carried out using a fragment of peptide or protein or peptidomimetic suitably protected on its side chains and a peptide or protein or peptidomimetic sequence anchored on a GDP molecule allowing, afterwards coupling, to obtain a longer peptide or protein or peptidomimetic.
- the method for synthesizing a peptide or protein or peptidomimetic according to the invention can be carried out using molecules having at least two groups functional, namely a group Q a and Q b group, which may be identical or different and which are selected from the electrophilic groups and / or nucleophilic groups.
- Q a can be an electrophilic group
- Q b can be a nucleophilic group
- Q a can be a first electrophilic group and Q b a second electrophilic group
- Q a can be a first nucleophilic group and Q b a second nucleophilic group
- Q a and Q b can also denote the same electrophilic group, or even the same nucleophilic group.
- These molecules having at least two functional groups can be directly anchored on the anchor molecule or introduced during synthesis on the amine (primary or secondary) or hydroxyl or thiol function, of a, b or g-amino acids or a acids , p or y-hydroxy or a, b or y-mercapto acids or anchored peptides or proteins or peptidomimetics.
- a slight stoichiometric excess of the a, b or y-amino acid or a, b or g-hydroxylated acid or a, b or y-mercapto acid activated, during each anchoring step, is used. elongation and / or iteration.
- bifunctional molecules can be introduced into the peptide or protein or peptidomimetic chain by known chemical reactions. If necessary, they can be protected or masked (on its nucleophilic function or any other chemical functions requiring it, by means of known reactions) and activated by known techniques.
- the units derived from bifunctional molecules which are not selected from among a, b or y-amino acids or a, b or g-hydroxy acids or a, b or y-mercapto acids can advantageously be attached to the C-terminus of said peptide or protein or peptidomimetic, or on the N, O or S-terminal end (in particular by functionalization of the amine, hydroxyl or thiol function), or else on the side chain, or alternatively between two units selected from the acids a , b or y-amino or a, b or g-hydroxy acids or a, b or y-mercapto acids.
- the number of units derived from bifunctional molecules which are not selected from among a, b or y-amino acids or a, b or g-hydroxylated acids or a, b or y-mercapto acids does not not exceed 50% in number of units, and preferably does not exceed 25% in number of units, and even more preferably does not exceed 10% in number of units.
- semaglutide a peptidomimetic comprising on a side chain an ⁇ -aminobutyric acid unit, can be prepared using the process according to the invention.
- a list of molecules of the a, b, g or d-amino acid type is given here which can be used as units within the framework of the process according to the invention, in addition to the amino acids already mentioned above: the acid d -amino levulinic acid, g-aminobutyric acid, b-aminobutyric acid (also known by the acronym BABA), b-alanine, b-lysine, b-aminoisobutyric acid, bN-Methylamino-L- alanine, (2S, 3S, 8S, 9S) -3-amino-9-methoxy-2,6,8-trimethyl-10-phenyldeca-4,6-dienoic acid (also known as ADDA), G (2R) -2- (methylamino) butanedioic acid (also known as NMDA) and 4-amino-3-hydroxybutanoic acid.
- BABA acid d -amino levulinic acid
- a list of molecules of the a, b, g or d-hydroxylated acid type is given here which can be used as units in the context of the process according to the invention: 4-hydroxybutanoic acid, 2- (hydroxymethyl) acid -3-methylbutanoic and (2R, 3R, 4R) - 3-hyd roxy-2, 4, 6-tri m éthy I heptanoic acid.
- a list of molecules of type a, b, y or d-mercapto acid is given here which can be used as units in the context of the process according to the invention: 4-sulfanylbutanoic acid, 2-cyclopropyl-3 acid -sulfanylpropanoic acid, 2-cyclobutyl-3- sulfanylpropanoic acid and 2- (2-sulfanylphenyl) butanoic acid
- the method according to the invention has many advantages.
- a first advantage is that it allows the production of peptides or proteins or peptidomimetics (protected or not on their side chains) linked to the anchor molecule in the organic liquid phase.
- a second advantage is that it makes it possible to obtain peptides or proteins or peptidomimetics (protected or not on their side chains) anchored of high purity by a simple washing (extraction) in an apolar organic solvent and with water or a water / ethanol or even water / acetonitrile mixture or by filtration, thus causing the elimination of by-products (salts, acids or any other molecular species) which are not linked to the derivative of polyolefins or oligomers of polyolefins or polyalkenes such as excess reagents.
- Organic solvents such as cyclohexane, heptane, hexane (s) which have flash points ⁇ 15 ° C, are suitable for solubilizing the derivatives of polyolefins or of oligomers of polyolefins or polyalkenes during extraction or processing. washing.
- the process according to the invention therefore makes it possible to limit the purification steps which are necessary in the processes of the state of the art.
- a third advantage, which is particularly important, is that the process according to the invention makes it possible to synthesize peptides or proteins or peptidomimetics, by adjusting the length of the derivative of polyolefins or oligomers of polyolefins or polyalkenes, that is to say by making them more lipophilic.
- a fourth advantage is the possibility of controlling the purity of the peptide or protein or peptidomimetic during synthesis, at any time, by taking an aliquot followed by analysis by the various techniques known to those skilled in the art (such as than mass spectrometry, high performance liquid chromatography, proton or carbon-13 nuclear magnetic resonance).
- a fifth advantage lies in the fact that it is not necessary to use a protective group for the amine function (primary or secondary) or hydroxyl or thiol, respectively, a, b or g-amino acids or a acids, b or g-hydroxy or a, b or g-mercapto acids which generally costs two steps (protection and deprotection). More generally, the process according to the invention allows an optimal economy of atoms because it does not involve either protective groups for the amine (primary or secondary) or hydroxyl or thiol function of the corresponding acids, or coupling agents. . This economy of atoms and of process steps according to the invention generates, in industrial reality, financial savings while reducing the generation of waste, which is a favorable environmental factor unlike current methods.
- a sixth advantage of the invention lies in the fact that the activation of the carboxylic acid function (C-terminal) is concomitant with the protection of the amine (primary or secondary) or hydroxyl or thiol function, therefore reducing the number of steps.
- a seventh particularly interesting advantage of the invention lies in the production of high purity peptides or proteins or peptidomimetics after the cleavage of the protective groups of the side chains, then of the anchor molecule. This avoids purifying the peptide or protein or peptidomimetic synthesized. As a result, additional savings are generated over known methods. This further limits the environmental impact of the production of peptides or proteins or peptidomimetics.
- An eighth advantage of the invention lies in the possibility of accessing peptides or proteins or peptidomimetics of larger sizes, either by modulating the size of the liquid carrier or by introducing it on one or more side chains of a, b or g-amino acids or a, b or g-hydroxylated acids or a, b or g-mercapto acids activated.
- the peptides or proteins or peptidomimetics produced by this process can be used as pharmaceutical products (drugs and vaccines), cosmetics, phytosanitary products, agrifood products or as intermediates to synthesize such products.
- An octapeptide was prepared using the method according to the invention.
- AAA1 activated L-phenylalanine
- AAA2 activated L-tryptophan
- AAA3 activated L-cysteine (protected by a benzyl (Bzl) protecting group)
- This reaction corresponds to Reaction Scheme # 3 above.
- an activated amino acid (activated L-phenylalanine referred to herein as AAA1) is coupled to the anchor molecule, in this case a derivative of PIB.
- AAA1 activated L-phenylalanine
- This reaction corresponds to Reaction Scheme # 4 above.
- the peptide is extended by attaching another activated amino acid (here AAA2).
- AAA2 another activated amino acid
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CA3134570A CA3134570A1 (fr) | 2019-05-02 | 2020-05-04 | Methode de production de peptides ou proteines ou peptidomimetiques |
US17/605,008 US20230219999A1 (en) | 2019-05-02 | 2020-05-04 | Method for producing peptides or proteins or peptidomimetics |
AU2020266294A AU2020266294B2 (en) | 2019-05-02 | 2020-05-04 | Method for producing peptides or proteins or peptidomimetics |
EP20730450.2A EP3962922A1 (fr) | 2019-05-02 | 2020-05-04 | Methode de production de peptides ou proteines ou peptidomimetiques |
JP2021564322A JP7459435B2 (ja) | 2019-05-02 | 2020-05-04 | ペプチド又はタンパク質又はペプチド模倣体の製造方法 |
BR112021021524A BR112021021524A2 (pt) | 2019-05-02 | 2020-05-04 | Método para a produção de peptídeos ou proteínas ou peptidomiméticos |
CN202080033092.7A CN114008066A (zh) | 2019-05-02 | 2020-05-04 | 肽或蛋白质或拟肽的制造方法 |
SG11202111716TA SG11202111716TA (en) | 2019-05-02 | 2020-05-04 | Method for producing peptides or proteins or peptidomimetics |
IL287411A IL287411A (en) | 2019-05-02 | 2021-10-19 | A method for the production of peptides or proteins or peptidomimetic compounds |
ZA2021/09853A ZA202109853B (en) | 2019-05-02 | 2021-12-01 | Method for producing peptides or proteins or peptidomimetics |
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2019
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- 2020-05-04 WO PCT/FR2020/000158 patent/WO2020221970A1/fr unknown
- 2020-05-04 US US17/605,008 patent/US20230219999A1/en active Pending
- 2020-05-04 CA CA3134570A patent/CA3134570A1/fr active Pending
- 2020-05-04 JP JP2021564322A patent/JP7459435B2/ja active Active
- 2020-05-04 SG SG11202111716TA patent/SG11202111716TA/en unknown
- 2020-05-04 CN CN202080033092.7A patent/CN114008066A/zh active Pending
- 2020-05-04 AU AU2020266294A patent/AU2020266294B2/en active Active
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