EP3140321A1 - Verfahren zur gezielten konjugation von peptiden und proteinen mittels paarweiser c2-verbrückung von cystein-aminosäuren - Google Patents
Verfahren zur gezielten konjugation von peptiden und proteinen mittels paarweiser c2-verbrückung von cystein-aminosäurenInfo
- Publication number
- EP3140321A1 EP3140321A1 EP15719245.1A EP15719245A EP3140321A1 EP 3140321 A1 EP3140321 A1 EP 3140321A1 EP 15719245 A EP15719245 A EP 15719245A EP 3140321 A1 EP3140321 A1 EP 3140321A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- amino
- alkoxy
- peptide
- alkoxycarbonyl
- alkyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/56—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule
- A61K47/59—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes
- A61K47/60—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/68—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K7/00—Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
- C07K7/64—Cyclic peptides containing only normal peptide links
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2317/00—Immunoglobulins specific features
- C07K2317/50—Immunoglobulins specific features characterized by immunoglobulin fragments
- C07K2317/55—Fab or Fab'
Definitions
- the present application relates to a novel method for the targeted conjugation of peptides and proteins, which is characterized by the pairwise C2-bridging of cysteine amino acids via their thiol groups, and also to the conjugates of peptides and proteins obtainable by such a process, and the use of such conjugates for the diagnosis and / or treatment of diseases.
- peptides and proteins are altered or modulated by conjugation.
- Therapeutically relevant peptides and proteins may, for example, be conjugated to biocompatible polymers to increase the half-life of the subject peptide or protein in the plasma circulation and thus its duration of action or to counteract possible immunogenicity [Veronese and Maro, 2008; Roberts et al., 2002].
- peptides and proteins can be conjugated with biochemical markers, dyes or reactive groups, which then provide information on the binding process in certain organs or cell regions after administration [Miller and Cornish, 2005].
- Another widely researched field are peptide and protein conjugates with active ingredients that target these drugs to specific cell or organ regions for their intended site of action (so-called drug targeting).
- ADCs Antibody Drug Conjugates
- peptides and proteins can be provided with reactive groups by different methods, which in turn serve as a point of attachment for drugs or diagnostics [Ramil and Lin, 2013].
- peptides and proteins can be conjugated via the functionality of their amino acids [Widdison et al., 2006].
- the challenge here is to provide a Method that allows a selective conversion of the desired functionality in the peptide or protein in the presence of other, usually unprotected (free) amino acid groups.
- Another possibility is to generate reactive groups by biochemical transformations, which are accessible to subsequent conjugation.
- a prominent example is the reduction of one or more cysteine-formed disulfide bonds in a peptide or protein to then conjugate the thus liberated thiol groups.
- This can be done by conjugation of a single thiol, preferably with maleimides [Ghosh et al., 1990], or by bridging both thiol groups of the former disulfide bond.
- maleimides preferably with maleimides [Ghosh et al., 1990]
- bridging both thiol groups of the former disulfide bond For example, for such a bridging of thiols, double Michael acceptors are described which lead to a Cl- or C3-bridging [Liberatore et al., 1990; Godwin et al., Int. Pat. Appl. WO 2005/007197-A2, WO 2010/100430-A1], as well as bifunctional
- Scheme 1 Bis-reactive conjugation reagents: a) equilibrium transfer alkylating cross-link (ETAC) reagent for disulfide C3 bridging; b) functional maleimides for disulfide C2 bridging.
- ADCs antibody-drug conjugates
- interchain-ol bonds of the antibody in question are reduced to free thiol groups and subsequently conjugated in a bridging manner.
- a method has now been found which opens up new access to C2-bridged peptide and protein conjugates. In this method, after reduction of the cysteine-formed disulfide bridge, the two thiols are selectively reacted with alkynes by a so-called thiol-yn reaction: Scheme 2:
- Thiol-yne reactions (thiol-yne reaction, thiol-yne coupling (TYC)) on peptides and proteins are known per se. However, they have not been used for the C2-bridging conjugation of cysteines with free thiol groups, but each thiol group has been conjugated separately and non-bridging [Lo Conte et al., 2011; Lo Conte et al., 2010; Massi and Nanni, 2012; Minozzi et al., 2011; Krannig et al., 2013; Aimetti et al., 2010].
- thiol-yn reactions to peptides which serve the synthesis of cyclopeptides by substituting a linear precursor peptide at an appropriate position with an alkyne group which then reacts with a free cysteine of the same peptide under cyclization [Aimetti et al. , Int. Pat. Appl. WO 2011/156686-A2].
- the vinyl sulfide formed in this case can be reacted in a subsequent reaction step with another (other) thiol.
- the invention provides a method which allows a C2-conjugating bridging of cysteines with free thiol groups in peptides and proteins by means of a selective thiol-yn reaction with alkyne derivatives.
- Corresponding free thiols can be generated for example by the reduction of disulfide bonds.
- the alkyne derivatives may be suitably provided with substituents, functional groups and / or linker moieties, allowing for a corresponding modulation of the molecular properties of the target conjugates.
- the present invention is a process for the preparation of homogeneous peptide and protein conjugates, which is characterized in that a peptide or protein of the formula (II)
- S 1 and S 2 represent cysteine-sulfur atoms of this peptide or protein bound in a disulfide bridge, under reducing conditions into a peptide or protein of the formula ( ⁇ )
- R 1 and R 2 independently of one another represent hydrogen, alkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino, hydroxycarbonyl, alkoxycarbonyl, alkylcarbonylamino or alkoxycarbonylamino, where alkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, Alkoxy, alkylamino, dialkylamino, alkoxycarbonyl, alkylcarbonylamino and alkoxycarbonylamino, in turn, one or more times, identically or differently, with halogen, hydroxyl, alkoxy, amino, Alkylamino, dialkylamino, hydroxycarbonyl, alkoxycarbonyl, alkylcarbonylamino and alkoxycarbonylamino, for a bond or a hydrocarbon chain having 1 to 100 carbon atoms of alkylene,
- Cycloalkyl ring may be monosubstituted or polysubstituted, identically or differently, with fluorine, alkyl, hydroxy, hydroxyalkyl and alkoxy, is a bond or a linker, n-fold may be present and a drug molecule, polymer, alkaloid, peptide, Protein, carbohydrate, nucleotide, nucleoside, steroid, terpene, porphyrin, chlorin, corrin, eicosanoid, pheromone, vitamin, biotin, a dye molecule or a cryptand or represents hydrogen, hydroxyl, alkoxy, amino, alkylamino, dialkylamino, hydroxycarbonyl, Alk
- reaction steps a) and b) depicted in Scheme 3 can be carried out either in separate form, with intermediate isolation of the intermediate (III), or successively in the same reaction. are carried out. Preferably, the reactions are carried out in the last-mentioned "one-pot process”.
- the reduction of the disulfide ( ⁇ ) to the free dithiol (III) is preferably carried out with tris (2-carboxyethyl) phosphine (TCEP).
- the thiol-yn reaction of the dithiol ( ⁇ ) with the alkyne derivative of the formula (IV) to give the conjugate of the formula (I) can be achieved by photochemical radical initiators or by oxidatively generated radicals, such as, for example, triethylborane with small amounts of oxygen, mediated.
- photochemical free radical initiators such as bis are preferred (2,4,6-trimefhyl- benzoyl) phenylphosphine oxide (Irgacure ® 819) or lithium-phenyl-2,4,6-trimethylbenzoylphos- phinat (LAP) [Gong et al., 2013 ], used.
- UV light of a wavelength between 350 nm and 400 nm is preferably used, the wavelengths of 365 nm and 385 nm are particularly preferred.
- Suitable inert solvents for reaction steps a) and b) are preferably water, aqueous buffer solutions or mixtures of water a water-soluble organic solvent such as methanol or ethanol.
- the reactions are generally carried out in a temperature range from 0 ° C to 40 ° C; preference is given to the reaction procedure at room temperature.
- the inventive method in this case relates to the "direct" reaction of the dithiol ( ⁇ ) with the alkyne derivative (IV) to the conjugate of formula (I) under the conditions previously described for reaction step b).
- the method according to the invention also comprises the preparation of multiple conjugates of a peptide or protein of the formula (II) with the alkyne derivative (IV) according to the above-described reaction sequence in cases where in the peptide or protein of the formula (II) more of such Conjugation accessible disulfide bridges are present.
- Another object of the present invention are peptide and protein conjugates of the general formula (I)
- S 1 and S 2 are previously in a disulfide bridge bound cysteine sulfur atoms of a peptide or protein
- R 1 and R 2 independently of one another represent hydrogen, alkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino, hydroxycarbonyl, alkoxycarbonyl, alkylcarbonylamino or alkoxycarbonylamino, where alkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, Alkoxy, alkylamino, dialkylamino, alkoxycarbonyl, alkylcarbonylamino and alkoxycarbonylamino in turn may be mono- or polysubstituted, identically or differently, by halogen, hydroxyl, alkoxy, amino, alkylamino, dialkylamino, hydroxycarbonyl, alkoxycarbonyl, alkylcarbonylamino and alkoxycarbonylamino,
- R 2 and A are linked together and, together with the carbon atoms between them, form an 8-membered carbocycle which may be fused to a 3- to 6-membered cycloalkyl ring, the 8-membered carbocycle and optionally the fused cycloalkyl ring may be monosubstituted or polysubstituted, identically or differently, by fluorine, alkyl, hydroxy, hydroxyalkyl and alkoxy,
- L is a bond or a linker
- X can be present n times and a drug molecule, polymer, alkaloid, peptide, protein, carbohydrate, nucleotide, nucleoside, steroid, terpene, porphyrin, chlorin, corrin, eicosanoid, pheromone, vitamin, biotin, a dye molecule or a cryptand represents or represents hydrogen, hydroxy, alkoxy, amino, alkylamino, dialkylamino, hydroxy carbonyl, alkoxycarbonyl, alkylcarbonylamino, alkoxycarbonylamino, alkyl, cycloalkyl, heterocycloalkyl, aryl or heteroaryl, where alkyl itself is mono- or polysubstituted, identically or differently, by halogen, hydroxyl, alkoxy, amino, alkylamino, dialkylamino, hydroxycarbonyl, alkoxycarbonyl, alkylcarbonylamino and Alkoxycarbonyla
- the present invention also encompasses corresponding multiple conjugates of such a peptide or protein, ie conjugates, in which a pairwise C2-bridging in the sense of formula (I) at several positions of the respective precursor peptide, or peptides or proteins with several disulfide bridges accessible by the conjugation method according to the invention protein is done.
- the substituents and radicals unless specified otherwise, have the following meaning:
- Alkyl in the context of the invention is a straight-chain or branched alkyl radical having 1 to 10, preferably 1 to 8, particularly preferably 1 to 6 carbon atoms.
- Alkylene in the context of the invention is a straight-chain or branched, divalent alkyl radical (alkanediyl radical) having 1 to 10, preferably 1 to 8, particularly preferably 1 to 6 carbon atoms.
- alkanediyl radical alkanediyl radical
- Alkanediyl radical a straight-chain or branched, divalent alkyl radical (alkanediyl radical) having 1 to 10, preferably 1 to 8, particularly preferably 1 to 6 carbon atoms.
- hydroxyalkyl is a straight-chain or branched alkyl radical having 1 to 6, preferably 1 to 4, carbon atoms which carries a hydroxy group as substituent within the chain or terminally.
- Examples which may be mentioned by way of example are: hydroxymethyl, 1-hydroxyethyl, 2-hydroxyethyl, 1-hydroxy-1-methylethyl, 1,1-dimethyl-2-hydroxyethyl, 1-hydroxypropyl, 2-hydroxypropyl, 3-hydroxypropyl, 1 Hydroxy-2-methylpropyl, 2-hydroxy-1-methylpropyl, 2-hydroxy-2-methylpropyl, 1-hydroxybutyl, 2-hydroxybutyl, 3-hydroxybutyl, 4-hydroxybutyl, 5-hydroxypentyl and 6-hydroxyhexyl.
- Alkoxy in the context of the invention is a straight-chain or branched alkoxy radical having 1 to 6, preferably 1 to 4, carbon atoms. Examples which may be mentioned by way of example and with preference are: methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, where-butoxy, sec-butoxy, ferric. Butoxy, pentoxy, isopentoxy, 1-ethylpropoxy, 1-methylbutoxy, 2-methylbutoxy, 3-methylbutoxy and n-hexoxy.
- alkoxycarbonyl is a straight-chain or branched alkoxy radical having 1 to 6, preferably 1 to 4, carbon atoms which is linked to the rest of the molecule via a carbonyl group [-C (0O) -] bound to the oxygen atom is.
- Alkylamino in the context of the invention represents an amino group having a straight-chain or branched alkyl substituent which has 1 to 6, preferably 1 to 4, carbon atoms.
- Dialkylamino is in the context of the invention an amino group having two identical or different straight-chain or branched alkyl substituents, each having 1 to 6, preferably 1 to 4 carbon atoms.
- Examples which may be mentioned by way of example and by way of preference are: -dimethylamino, -dibylamino, -ethylmethylamino, -methyl-n-propylamino, / V-isopropylmethylamino, -sopropyl-n-propylamino, / V, / V- Diisopropylamino, n-butyl-methyl-amino and N-ethyl-butyl-N-methylamino.
- Alkoxycarbonylamino in the context of the invention represents an amino group having a straight-chain or branched alkoxycarbonyl substituent which has 1 to 6, preferably 1 to 4, carbon atoms in the alkoxy radical and is linked via the carbonyl group to the nitrogen atom.
- Examples which may be mentioned by preference include: methoxycarbonylamino, ethoxycarbonylamino, -propoxycarbonylamino, isopropoxycarbonylamino, n-butoxycarbonylamino and ieri.-butoxycarbonylamino.
- Examples which may be mentioned are: acetyl, propionyl, n-butyryl, where-butyryl, n-pentanoyl and pivaloyl.
- Alkylcarbonylamino in the context of the invention is an amino group having a straight-chain or branched alkylcarbonyl substituent which has 1 to 6, preferably 1 to 4 carbon atoms in the alkyl radical and is linked via the carbonyl group to the nitrogen atom. Examples which may be mentioned are: acetylamino, propionylamino, n-butyrylamino, isobutyrylamino, n-pentanoylamino and pivaloylamino.
- Cycloalkyl in the context of the invention is a monocyclic, saturated carbocycle having 3 to 10, preferably 3 to 8, particularly preferably 3 to 6 ring carbon atoms. Examples which may be mentioned by way of example include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclononyl and cyclodecyl.
- Cycloalkylene in the context of the invention is a monocyclic, saturated, divalent cycloalkyl radical (cycloalkanediyl radical) having 3 to 10, preferably 3 to 8, particularly preferably 3 to 6 ring carbon atoms.
- cycloalkanediyl radical having 3 to 10, preferably 3 to 8, particularly preferably 3 to 6 ring carbon atoms. Examples which may be mentioned by way of example and are preferably: cyclopropan-1, 1-diyl, cyclopropan-1, 2-diyl, cyclobutane-1,1-diyl, cyclobutane-1,2-diyl, cyclobutane-1,3-diyl, cyclopentane l, l-diyl, cyclopentane-l, 2-diyl, cyclopentane, 3-diyl, cyclohexane-l, l-diyl, cyclohexane-1,
- azetidinyl oxetanyl, thietanyl, pyrrolidinyl, pyrrolinyl, pyrazolidinyl, dihydropyrazolyl, tetrahydrofuranyl, thiolanyl, 1,1-diaminothiolanyl, 1,3-oxazolidinyl, 1,3-thiazolidinyl, piperidinyl, tetrahydropyridyl, piperazinyl, tetrahydropyranyl, Dihydropyranyl, tetrahydrothiopyranyl, 1,3-dioxanyl, 1,4-dioxanyl, morpholinyl, thiomorpholinyl, 1,1-dioxideothiomorpholinyl, hexahydroazepinyl, hexahydro-1,4-dihydroxypropyl azepinyl, oct
- Examples which may be mentioned are: azetidinyl, oxetanyl, thietanyl, pyrrolidinyl, pyrazolidinyl, tetrahydrofuranyl, thiolanyl, 1,3-oxazolidinyl, piperidinyl, piperazinyl, tetrahydropyranyl, tetrahydrothiopyranyl, 1,4-dioxanyl, morpholinyl and thiomorpholinyl.
- Aryl in the context of the invention is an aromatic carbocycle having 6 or 10 ring carbon atoms, such as phenyl and naphthyl.
- Arylene in the context of the invention is a divalent aryl radical, for example 1,2-phenylene, 1,3-phenylene, 1,4-phenylene, naphthalene-2,3-diyl, naphthalene-1,4-diyl, naphthalene-1, 5-diyl, naphthalene-2,6-diyl and naphthalene-1,8-diyl.
- Heteroaryl is in the context of the invention for a 5- to 10-membered, mono- or optionally bicyclic aromatic heterocycle (heteroaromatic) having a total of 5 to 10 ring atoms containing up to four ring heteroatoms from the series N, O and / or S. and linked via a ring carbon atom or optionally a ring nitrogen atom.
- heterocycle mono- or optionally bicyclic aromatic heterocycle
- Examples which may be mentioned are: furyl, pyrrolyl, thienyl, pyrazolyl, imidazolyl, thiazolyl, oxazolyl, isoxazolyl, isothiazolyl, triazolyl, oxadiazolyl, thiadiazolyl, tetrazolyl, pyridyl, pyrimidinyl, pyridazinyl, pyrazinyl, triazinyl, benzofuranyl, benzothienyl, benzimidazolyl, benzoxazolyl, benzothiazolyl, Benzotriazolyl, indolyl, indazolyl, quinolinyl, isoquinolinyl, naphthyridinyl, quinazolinyl, quinoxalinyl, phthalazinyl and pyrazolo [3,4-b] pyridinyl.
- Examples which may be mentioned are: furyl, thienyl, thiazolyl, oxazolyl, isothiazolyl, isoxazolyl, pyrazolyl, imidazolyl, triazolyl, oxadiazolyl, thiadiazolyl, pyridyl, pyrimidinyl, pyridazinyl, pyrazinyl and triazinyl.
- Halogen in the context of the invention includes fluorine, chlorine, bromine and iodine. Preference is given to chlorine, fluorine or bromine, more preferably fluorine or chlorine.
- radicals in the compounds according to the invention are present Unless otherwise specified, the radicals may be monosubstituted or polysubstituted. Substitution with one or two or three identical or different substituents is preferred. Particularly preferred is the substitution with one or two identical or different substituents. Very particular preference is given to the substitution with a substituent.
- in vivo cleavable group can be subdivided into groups which are cleavable in vivo chemically (eg by acid hydrolysis or redox processes) and those which are enzymatically isolated, ie under the influence of an endogenous enzyme, are cleavable in vivo.
- Both types of cleavable groups should initially be stable in the circulation and only at or in the target cell by the altered there chemical or enzymatic environment (eg lower pH, increased glutathione concentration, presence of lysosomal enzymes such as cathepsin or plasmin) are cleaved.
- Suitable structural fragments which can be cleaved chemically in vivo are in particular disulfide, hydrazone, acetal and aminal groups for this purpose.
- Enzymatic cleavable structural elements in particular are oligopeptide units of 2 to 8 amino acids and especially dipeptide groups. Such designated peptide cleavage sites are described in numerous forms in the literature.
- Prominent examples are the dipeptide units valine-alanine, valine-lysine, valine-citrulline, alanine-lysine and phenylalanine-lysine [see eg JJ Petersen and CF Meares, Bioconjugate Chem. 9, 618-626 (1998); GM Dubowchik and RA Firestone, Bioorg. Med. Chem. Lett. 8, 3341-3346 (1998); GM Dubowchik et al, Bioconjugate Chem. 13, 855-869 (2002)].
- the linker described above may also contain an in vivo transient stable group.
- transiently stable groups are cleaved under the influence of the chemical or enzymatic environment, for example in the bloodstream over a relatively long period of time (of hours or days) [see, eg, Flamme et al., Int. Pat. Appl. WO 2013/064455-A1].
- active ingredient molecules in the above definition of the group X in particular pharmaceutical active ingredients for cancer therapy, such as cytotoxins and cytostatics into consideration. In detail, these agents can damage the cancer cell, initiate programmed cell death, and / or inhibit cell growth and cell proliferation.
- agents for cancer treatment are: antimetabolites such as methotrexate, cladribine, fludarabine, mercaptopurine, tioguanine, pentostatin, cytarabine, fluorouracil, capecitabine and gemcitabine, alkylating substances such as cyclophosphamide, ifosfamide, mitomycin, trofosfamide, thiotepa , Busulfan, treosulfan, carmustine, lomustine, nimustine, procarbazine, dacarbazine and the platinum compounds cisplatin, carboplatin and oxaliplatin, topoisomerase inhibitors such as topotecan, irinotecan, etoposide and teniposide, kinase inhibitors such as sorafenib, regorafinib, sunitinib, afatinib, Erlo - tinib and
- Group X include cytotoxic compounds and toxins, as experimentally and clinically tested as "toxophore” in antibody-drug conjugates (ADCs), especially for cancer therapy.
- ADCs antibody-drug conjugates
- examples include, in particular, substances such as maytansine and maytansinoids (DM-1, DM-4), dolastatins, auristatins (MMAE, MMAF), calicheamicins, duocarmycins, camptothecins (topotecan, exatecan, irinotecan, SN-38), doxorubicin , Amatoxins (amanitin), pyrrolobenzodiazepines (PBDs) and kinesin spindle protein (KSP) inhibitors.
- DM-1, DM-4 dolastatins
- MMAE, MMAF auristatins
- calicheamicins duocarmycins
- camptothecins topotecan, exatecan, ir
- the peptides and proteins of formula (II) contain at least two cysteine amino acids which form or are capable of disulfide bonding.
- Such peptides include, for example, peptide hormones such as insulin, somatostatin, oxitocin, terli- pressin, adrenomedullin, calcitonin or vasopressin.
- proteins of this type are antibodies, cytokines such as interleukins and albumins.
- an immunoglobulin molecule preferably represents a molecule having four polypeptide chains, consisting of two heavy chains (H chains, HC) and two light chains (L chains, LC), which are typically linked together by disulfide bridges (so-called intercam-disulfide bridges) are linked.
- Each heavy chain comprises a variable domain (abbreviated VH) and a constant domain (CH).
- the heavy chain constant domain in turn may have three (CHI, CH2, CH3) or four subdomains.
- Each light chain includes also a variable domain (VL) and a constant domain (CL) -
- VH and VL domains can be further subdivided into regions of hypervariability, also called complementarity determining regions (CDRs), and in regions with lower sequence variability ("framework region", FR).
- Each VH and VL region is typically composed of three CDRs and up to four FRs, for example, from the amino to the carboxy terminus in the order FR1, CDR1, FR2, CDR2, FR3, CDR3, FR4.
- An antibody can be obtained from any suitable species, eg monkey, pig, rabbit, mouse or rat. In a particular embodiment, the antibody is of human or murine origin. Such an antibody may be, for example, human, humanized or chimeric.
- Another object of the present invention is the use of the conjugates of the formula (I) for the diagnosis and / or treatment of diseases, in particular for the diagnosis and / or treatment of cancer and tumor diseases.
- Another object of the present invention is the use of the conjugates of the formula (I) in a method for the diagnosis and / or treatment of diseases, in particular cancer and tumor diseases.
- Another object of the present invention is a method for the diagnosis and / or treatment of diseases, in particular cancer and tumor diseases, using one or more conjugates of the formula (I).
- the term “treatment” or “treating” includes inhibiting, delaying, arresting, alleviating, reducing, restricting, reducing, suppressing, restraining or curing a disease, a disease, a disease, an injury or a health disorder , the unfolding, the course or progression of such conditions and / or the symptoms of such conditions.
- the term “therapy” is understood to be synonymous with the term “treatment”.
- diagnosis in the context of the present invention in the usual sense understood as (discriminating) detection, detection, determination, assessment, classification and naming of a disease, a disease, a disease, a disease symptom, an injury or a health disorder.
- Another object of the present invention are pharmaceutical compositions containing at least one of the conjugates of formula (I), usually together with one or more inert, non-toxic, pharmaceutically suitable excipients, and their use for the purposes mentioned above.
- the conjugates of the formula (I) according to the invention can act systemically and / or locally. For this purpose, they may be applied in a suitable manner, such as, for example, orally, parenterally, pulmonarily, nasally, sublingually, lingually, buccally, rectally, dermally, transdermally, conjunctivally, otically or as an implant or stent.
- the conjugates according to the invention can be administered in suitable administration forms.
- the prior art uses rapidly and / or modified delivery forms which contain the conjugates according to the invention in crystalline and / or amorphized and / or dissolved form, e.g. Tablets (uncoated or coated tablets, for example with enteric or delayed-release or insoluble coatings controlling the release of the conjugates of the invention), tablets or films / wafers rapidly breaking down in the oral cavity, films / lyophilisates, capsules (e.g. Soft gelatin capsules), dragees, granules, pellets, powders, emulsions, suspensions, aerosols or solutions.
- Tablets uncoated or coated tablets, for example with enteric or delayed-release or insoluble coatings controlling the release of the conjugates of the invention
- tablets or films / wafers rapidly breaking down in the oral cavity
- films / lyophilisates e.g. Soft gelatin capsules
- dragees granules, pellets, powders, emulsions, suspensions, aerosols or solutions
- Parenteral administration can be accomplished by bypassing a resorption step (e.g., intravenously, intraarterially, intracardially, intraspinal, or intralumbar) or by resorting to absorption (e.g., intramuscularly, subcutaneously, intracutaneously, percutaneously, or intraperitoneally).
- a resorption step e.g., intravenously, intraarterially, intracardially, intraspinal, or intralumbar
- absorption e.g., intramuscularly, subcutaneously, intracutaneously, percutaneously, or intraperitoneally.
- parenteral administration are suitable as application forms u.a. Injection and infusion preparations in the form of solutions, suspensions, emulsions, lyophilisates or sterile powders.
- Inhalation medicaments including powder inhalers, nebulizers
- nasal drops solutions or sprays
- lingual, sublingual or buccal tablets films / wafers or capsules
- suppositories ear or ophthalmic preparations
- vaginal capsules aqueous suspensions (lotions, shake mixtures), lipophilic suspensions
- Ointments creams, transdermal therapeutic systems (eg patches), milk, pastes, foams, powdered powders, implants or stents.
- the conjugates according to the invention can be converted into the stated administration forms. This can be done in a conventional manner by mixing with inert, non-toxic, pharmaceutically suitable excipients.
- excipients include, among others, excipients (for example microcrystalline cellulose, lactose, mannitol), solvents (for example liquid polyethylene glycols), emulsifiers and dispersants or wetting agents (for example sodium dodecyl sulfate, polyoxysorbitanoleate), binders (for example polyvinylpyrrolidone), synthetic and natural polymers (eg albumin), stabilizers (eg antioxidants such as Ascorbic acid), dyes (eg, inorganic pigments such as iron oxides) and flavor and / or odoriferous.
- excipients for example microcrystalline cellulose, lactose, mannitol
- solvents for example liquid polyethylene glycols
- emulsifiers and dispersants or wetting agents for example sodium do
- Device Type MS Waters Synapt G2S
- Device type UPLC Waters Acquity I-Class
- Eluent A 1: 1 water + 0.01% formic acid
- eluent B 1: 1 acetonitrile + 0.01% formic acid
- Oven 50 ° C
- Flow 1.20 ml / min
- UV detection 210 nm.
- Device Type MS Thermo Fisher Scientific LTQ-Orbitrap-XL
- Device type HPLC Agilent 1200SL
- Column Agilent Poroshell 120 SB-C18 2.7 ⁇ , 3 x 150 mm
- Eluent A 1: 1 water + 0.1% trifluoroacetic acid
- eluent B 1: 1 acetonitrile + 0.1% trifluoroacetic acid
- Gradient 0.0 min 2% B-> 1.5 min 2% B -> 15.5 min 95% B -> 18.0 min 95% B
- Oven 40 ° C
- Flow 0.75 ml / min
- UV detection 210 nm.
- Example 1 Exemplary embodiments: Example 1
- reaction mixture was then purified by separation of the isomeric products by preparative HPLC (column: Waters X-Bridge BEH130 Prep C18 10 ⁇ OBD, 19 ⁇ 250 mm, eluent A: water with 0.05% TFA, eluent B: acetonitrile with 0.05% TFA; Gradient: 0.0 min 5% B -> 40 min 40% B).
- An LED UV-pen (OmniCure LX400, diameter 12 mm, igb-tech GmbH, Germany) was introduced through a cut of the two-necked flask (distance to the reaction mixture about 40 mm), and the reaction mixture was UV for 365 h at 365 nm Light irradiated. The addition of 50 ⁇ L of the LAP solution and the subsequent irradiation for 1 h with 365 nm UV light were repeated twice more.
- reaction mixture was then fractionated by preparative HPLC (column: Waters X -Bridge BEH130 Prep C18 10 ⁇ OB IX 19 ⁇ 250 mm, eluent A: water with 0.1% TFA, eluent B: acetonitrile with 0.1% TFA, gradient: 0.0 min 5% B -> 3 min 5% B -> 43 min 40% B 44.30 min 95% B 49.30 min 95% B).
- terlipresin acetate (Bachem, Switzerland, sequence: H-Gly-Gly-Gly-Cys-Tyr-Phe-Gln-Asn-Cys-) were dissolved in an argon atmosphere in a two-necked flask.
- the reaction mixture was stirred for 2 h at RT and then treated with a solution of 4.9 mg (15.84 ⁇ ) 4- (hex-5-yn-l-yl) -4-methylmorpholin-4-iumiodid in 500 ⁇ DPBS buffer. Subsequently, 4.70 mg (15.98 ⁇ ) of LAP [prepared by literature-known method (Gong et al, 2013)] were dissolved in 500 ⁇ DPBS buffer and 50 ⁇ of this LAP solution was added to the reaction mixture.
- An LED UV-pen (OmniCure LX400, diameter 12 mm, igb-tech GmbH, Germany) was introduced through a cut of the two-necked flask (distance to the reaction mixture about 40 mm), and the reaction mixture was UV for 365 h at 365 nm Light irradiated. The addition of 50 ⁇ L of the LAP solution and the subsequent irradiation for 1 h with 365 nm UV light were repeated twice more.
- reaction mixture was then fractionated by preparative HPLC (column: Phenomenex Kinetex Prep 5 ⁇ C18 100 ⁇ AXIA Packed LC Column, 21.2 ⁇ 100 mm, eluent A: water with 0.1% TFA, eluent B: acetonitrile with 0.08% TFA; 0.0 min 5% B -> 3 min 5% B -> 63 min 40% B - »64.30 min 95% B 69.30 min 95% B).
- Product fraction 1 Product fraction 1:
- the reaction mixture was stirred at RT for 1.5 h and then treated with 200 ⁇ DPBS buffer and a solution of 1.6 mg (7.54 ⁇ ) / V-Boc-L-propargylglycine in 100 ⁇ DPBS buffer. Subsequently 3.20 mg (10.87 ⁇ mol) of LAP [prepared by the method known from the literature (Gong et al., 2013)] were dissolved in 500 ⁇ l of DPBS buffer and 50 ⁇ l of this LAP solution were added to the reaction mixture.
- An LED UV pencil (OmniCure LX400, diameter 12 mm, igb-tech GmbH, Germany) was introduced through a cut of the two-necked flask (distance to the reaction mixture about 40 mm), and the reaction mixture was allowed to stand for 1 h nm irradiated UV light. The addition of 50 ⁇ L of the LAP solution and the subsequent irradiation for 1 h with 365 nm UV light were repeated twice more.
- reaction mixture was then fractionated by preparative HPLC (column: Phenomenex Kinetex Prep 5 ⁇ L C18 100 ⁇ AXIA Packed LC Column, 21 ⁇ 2 ⁇ 100 mm, eluant A: water with 0.1% IIA, eluent B: acetonitrile with 0.08% I TA; Gradient: 0.0 min 'AB - + 3 min 5% B -> 63 min 40% B 65.3 min 95% B 70 min 95% B).
- the reaction mixture was stirred for 2.5 h at RT and then treated with 200 .mu.l 0.1% aqueous acetic acid, 200 ⁇ ⁇ acetonitrile and a solution of 2.5 mg (19.82 ⁇ ⁇ ) hept-6-acid in 100 .mu.l 0.1% aqueous acetic acid , 5.8 mg (19.72 ⁇ mol) of LAP [prepared by the method known from the literature (Gong et al., 2013)] were then dissolved in 500 ⁇ l of 0.1% strength aqueous acetic acid, and 50 ⁇ l of this LAP solution were added to the reaction mixture.
- reaction mixture was then fractionated by preparative HPLC (column: Waters X-Bridge BEI II 30 Prep C18 10 ⁇ OBD, 19 ⁇ 250 mm, eluant A: water with 0.1% TFA, eluent B: acetonitrile with 0.08% I LA; Gradient: 0.0 min 5% B 3 min 5% B -> 33 min 40% B).
- reaction mixture was then fractionated by preparative HPLC (column: Phenomenex Kinetex Prep 5 ⁇ C18 100 ⁇ AXIA Packed LC Column, 21.2 ⁇ 100 mm, eluent A: water with 0.1% TFA, eluent B: acetonitrile with 0.08% TFA, gradient: 0.0 min 5 ' ⁇ B-> 3 min 5% B ⁇ 63 min 40% B 64.30 min 95% B 69.30 min 95% B).
- the quantification of the covalent FAB fragment was carried out by RP chromatography of the reduced and denatured FAB fragment. Guanidinium hydrochloride (GuHCl) (28.6 mg) and a solution of DL-dithiothreitol (DTT) (500 mM, 3 ⁇ ) were added to the sample solution (1 mg / ml, 50 ⁇ ). The mixture was incubated for one hour at 55 ° C and then analyzed by HPLC.
- GuHCl Guanidinium hydrochloride
- DTT DL-dithiothreitol
- HPLC analysis was performed on an Agilent 1260 HPLC system with detection at 220 nm.
- a Polymer Laboratories PLRP-S Polymerized Reversed Phase column (2.1 mm x 150 mm, 8 ⁇ m particle size, 1000 ⁇ ; Catalog no. PL1912-3802) at a flow rate of 1 ml / min using the following eluent system: eluent A: 0.05% trifluoroacetic acid in water, eluent B: 0.05% trifluoroacetic acid in acetonitrile; Gradient: 0 min 25% B, 3 min 25% B, 28 min 50% B.
- the signal detected exclusively in the conjugated sample was assigned to the covalent, non-reducible linked FAB.
- the percentage of covalently linked FAB was calculated from the signal areas determined by integration. For this purpose, the quotient of the signal area of the FAB fragment to the total area of all signals was formed and multiplied by 100. The resulting chromatograms and the calculated percentages are shown in Figure 1 1 and 12.
- the denatured and reduced sample was mass spectrometrically after online desalting over a Grom-Sil 300 Butyl lSt column (particle size 5 ⁇ , column dimension 5 mm x 500 ⁇ ) by HPLC-ESI-TOF (Impact HD, Bruker Daltonik).
- the flow rate was 5 ⁇ / min with the following eluent system: Eluent A: 0.1% formic acid in water, eluent B: 0.1% formic acid in 80% isopropanol, 10% acetonitrile and 10% water; Gradient: 0 minutes 22% B, 8 minutes 22% B, 10 minutes 24% B, 12 minutes 80% B, 18 minutes 95% B, 27 minutes 95% B, 30 minutes 22% B.
- MINOZZI M., MONESI, A., NANNI, D., SPAGNOLO, P., MARCHETTI, N. & MASSI, A., 2011.
- WIDDISON, W.C, WILHELM, SD CAVANAGH, EE, WHITEMAN, KR, LEECE, BA, KOVTUN, Y., GOLDMACHER, VS, XIE, H., STEEVES, RM, LUTZ, RJ, ZHAO, R., WANG , L., BLATTLER, WA & CHARI, RV, 2006.
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Abstract
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| Application Number | Priority Date | Filing Date | Title |
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| EP14167772 | 2014-05-09 | ||
| PCT/EP2015/059804 WO2015169784A1 (de) | 2014-05-09 | 2015-05-05 | Verfahren zur gezielten konjugation von peptiden und proteinen mittels paarweiser c2-verbrückung von cystein-aminosäuren |
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| EP15719245.1A Withdrawn EP3140321A1 (de) | 2014-05-09 | 2015-05-05 | Verfahren zur gezielten konjugation von peptiden und proteinen mittels paarweiser c2-verbrückung von cystein-aminosäuren |
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| EP (1) | EP3140321A1 (de) |
| JP (1) | JP2017520617A (de) |
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| AU2017320913B2 (en) | 2016-09-01 | 2024-08-15 | Forschungsverbund Berlin E.V. | Chemoselective thiol-conjugation with alkene or alkyne-phosphonamidates |
| KR102772724B1 (ko) | 2018-03-07 | 2025-02-24 | 포슝스베르분드 베를린 에.베. | 알켄 또는 알킨-포스포노티올레이트 및 -포스포네이트로의 화학선택적 티올-접합 |
| EP3878464A1 (de) * | 2020-03-09 | 2021-09-15 | Miltenyi Biotec B.V. & Co. KG | Verwendung einer autozelle mit einer vernetzten disulfidbrücke auf einer antigenerkennungseinheit zum targeting von krebszellen |
| WO2021115497A2 (zh) * | 2020-12-08 | 2021-06-17 | 和铂医药(上海)有限责任公司 | 蛋白-药物偶联物和定点偶联方法 |
| WO2024030954A1 (en) * | 2022-08-03 | 2024-02-08 | Nautilus Subsidiary, Inc. | Chemical modification of antibodies and functional fragments thereof |
| CN118496130A (zh) * | 2023-02-15 | 2024-08-16 | 暨南大学 | 炔磺酰胺类化合物及其应用 |
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| WO2011156686A2 (en) * | 2010-06-11 | 2011-12-15 | The Regents Of The University Of Colorado, A Body Corporate | Method for synthesizing a cyclic multivalent peptide using a thiol-mediated reaction |
| WO2012178063A1 (en) * | 2011-06-23 | 2012-12-27 | The Regents Of The University Of Michigan | Compound and method for modulating opioid receptor activity |
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- 2015-05-05 CN CN201580024053.XA patent/CN106413758A/zh active Pending
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| JP2017520617A (ja) | 2017-07-27 |
| WO2015169784A1 (de) | 2015-11-12 |
| CN106413758A (zh) | 2017-02-15 |
| CA2948082A1 (en) | 2015-11-12 |
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