WO2022018371A1 - Composes capables de se lier a des proteines et conjugues obtenus a partir de ces composes - Google Patents
Composes capables de se lier a des proteines et conjugues obtenus a partir de ces composes Download PDFInfo
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- WO2022018371A1 WO2022018371A1 PCT/FR2021/051345 FR2021051345W WO2022018371A1 WO 2022018371 A1 WO2022018371 A1 WO 2022018371A1 FR 2021051345 W FR2021051345 W FR 2021051345W WO 2022018371 A1 WO2022018371 A1 WO 2022018371A1
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- 125000001425 triazolyl group Chemical group 0.000 description 1
- 125000006168 tricyclic group Chemical group 0.000 description 1
- KVJXBPDAXMEYOA-CXANFOAXSA-N trilostane Chemical compound OC1=C(C#N)C[C@]2(C)[C@H]3CC[C@](C)([C@H](CC4)O)[C@@H]4[C@@H]3CC[C@@]32O[C@@H]31 KVJXBPDAXMEYOA-CXANFOAXSA-N 0.000 description 1
- 229960001670 trilostane Drugs 0.000 description 1
- 229960001099 trimetrexate Drugs 0.000 description 1
- NOYPYLRCIDNJJB-UHFFFAOYSA-N trimetrexate Chemical compound COC1=C(OC)C(OC)=CC(NCC=2C(=C3C(N)=NC(N)=NC3=CC=2)C)=C1 NOYPYLRCIDNJJB-UHFFFAOYSA-N 0.000 description 1
- 229960000875 trofosfamide Drugs 0.000 description 1
- UMKFEPPTGMDVMI-UHFFFAOYSA-N trofosfamide Chemical compound ClCCN(CCCl)P1(=O)OCCCN1CCCl UMKFEPPTGMDVMI-UHFFFAOYSA-N 0.000 description 1
- 229960001055 uracil mustard Drugs 0.000 description 1
- 239000004474 valine Substances 0.000 description 1
- 229960000241 vandetanib Drugs 0.000 description 1
- UHTHHESEBZOYNR-UHFFFAOYSA-N vandetanib Chemical compound COC1=CC(C(/N=CN2)=N/C=3C(=CC(Br)=CC=3)F)=C2C=C1OCC1CCN(C)CC1 UHTHHESEBZOYNR-UHFFFAOYSA-N 0.000 description 1
- JNAHVYVRKWKWKQ-CYBMUJFWSA-N veliparib Chemical compound N=1C2=CC=CC(C(N)=O)=C2NC=1[C@@]1(C)CCCN1 JNAHVYVRKWKWKQ-CYBMUJFWSA-N 0.000 description 1
- 229950011257 veliparib Drugs 0.000 description 1
- 229960003895 verteporfin Drugs 0.000 description 1
- ZQFGRJWRSLZCSQ-ZSFNYQMMSA-N verteporfin Chemical compound C=1C([C@@]2([C@H](C(=O)OC)C(=CC=C22)C(=O)OC)C)=NC2=CC(C(=C2C=C)C)=NC2=CC(C(=C2CCC(O)=O)C)=NC2=CC2=NC=1C(C)=C2CCC(=O)OC ZQFGRJWRSLZCSQ-ZSFNYQMMSA-N 0.000 description 1
- 229960003048 vinblastine Drugs 0.000 description 1
- JXLYSJRDGCGARV-XQKSVPLYSA-N vincaleukoblastine Chemical compound C([C@@H](C[C@]1(C(=O)OC)C=2C(=CC3=C([C@]45[C@H]([C@@]([C@H](OC(C)=O)[C@]6(CC)C=CCN([C@H]56)CC4)(O)C(=O)OC)N3C)C=2)OC)C[C@@](C2)(O)CC)N2CCC2=C1NC1=CC=CC=C21 JXLYSJRDGCGARV-XQKSVPLYSA-N 0.000 description 1
- 229960004528 vincristine Drugs 0.000 description 1
- OGWKCGZFUXNPDA-XQKSVPLYSA-N vincristine Chemical compound C([N@]1C[C@@H](C[C@]2(C(=O)OC)C=3C(=CC4=C([C@]56[C@H]([C@@]([C@H](OC(C)=O)[C@]7(CC)C=CCN([C@H]67)CC5)(O)C(=O)OC)N4C=O)C=3)OC)C[C@@](C1)(O)CC)CC1=C2NC2=CC=CC=C12 OGWKCGZFUXNPDA-XQKSVPLYSA-N 0.000 description 1
- OGWKCGZFUXNPDA-UHFFFAOYSA-N vincristine Natural products C1C(CC)(O)CC(CC2(C(=O)OC)C=3C(=CC4=C(C56C(C(C(OC(C)=O)C7(CC)C=CCN(C67)CC5)(O)C(=O)OC)N4C=O)C=3)OC)CN1CCC1=C2NC2=CC=CC=C12 OGWKCGZFUXNPDA-UHFFFAOYSA-N 0.000 description 1
- 229960004355 vindesine Drugs 0.000 description 1
- UGGWPQSBPIFKDZ-KOTLKJBCSA-N vindesine Chemical compound C([C@@H](C[C@]1(C(=O)OC)C=2C(=CC3=C([C@]45[C@H]([C@@]([C@H](O)[C@]6(CC)C=CCN([C@H]56)CC4)(O)C(N)=O)N3C)C=2)OC)C[C@@](C2)(O)CC)N2CCC2=C1N=C1[C]2C=CC=C1 UGGWPQSBPIFKDZ-KOTLKJBCSA-N 0.000 description 1
- GBABOYUKABKIAF-IELIFDKJSA-N vinorelbine Chemical compound C1N(CC=2C3=CC=CC=C3NC=22)CC(CC)=C[C@H]1C[C@]2(C(=O)OC)C1=CC([C@]23[C@H]([C@@]([C@H](OC(C)=O)[C@]4(CC)C=CCN([C@H]34)CC2)(O)C(=O)OC)N2C)=C2C=C1OC GBABOYUKABKIAF-IELIFDKJSA-N 0.000 description 1
- 229960002066 vinorelbine Drugs 0.000 description 1
- CILBMBUYJCWATM-PYGJLNRPSA-N vinorelbine ditartrate Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O.OC(=O)[C@H](O)[C@@H](O)C(O)=O.C1N(CC=2C3=CC=CC=C3NC=22)CC(CC)=C[C@H]1C[C@]2(C(=O)OC)C1=CC([C@]23[C@H]([C@@]([C@H](OC(C)=O)[C@]4(CC)C=CCN([C@H]34)CC2)(O)C(=O)OC)N2C)=C2C=C1OC CILBMBUYJCWATM-PYGJLNRPSA-N 0.000 description 1
- 229960004449 vismodegib Drugs 0.000 description 1
- BPQMGSKTAYIVFO-UHFFFAOYSA-N vismodegib Chemical compound ClC1=CC(S(=O)(=O)C)=CC=C1C(=O)NC1=CC=C(Cl)C(C=2N=CC=CC=2)=C1 BPQMGSKTAYIVFO-UHFFFAOYSA-N 0.000 description 1
- 235000001892 vitamin D2 Nutrition 0.000 description 1
- 239000011653 vitamin D2 Substances 0.000 description 1
- MECHNRXZTMCUDQ-RKHKHRCZSA-N vitamin D2 Chemical compound C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)/C=C/[C@H](C)C(C)C)=C\C=C1\C[C@@H](O)CCC1=C MECHNRXZTMCUDQ-RKHKHRCZSA-N 0.000 description 1
- 235000005282 vitamin D3 Nutrition 0.000 description 1
- 239000011647 vitamin D3 Substances 0.000 description 1
- 229940021056 vitamin d3 Drugs 0.000 description 1
Classifications
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- 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
- A61K47/6889—Conjugates wherein the antibody being the modifying agent and wherein the linker, binder or spacer confers particular properties to the conjugates, e.g. peptidic enzyme-labile linkers or acid-labile linkers, providing for an acid-labile immuno conjugate wherein the drug may be released from its antibody conjugated part in an acidic, e.g. tumoural or environment
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- 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
- A61K47/6801—Drug-antibody or immunoglobulin conjugates defined by the pharmacologically or therapeutically active agent
- A61K47/6803—Drugs conjugated to an antibody or immunoglobulin, e.g. cisplatin-antibody conjugates
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- 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
- A61K47/6801—Drug-antibody or immunoglobulin conjugates defined by the pharmacologically or therapeutically active agent
- A61K47/6803—Drugs conjugated to an antibody or immunoglobulin, e.g. cisplatin-antibody conjugates
- A61K47/68031—Drugs conjugated to an antibody or immunoglobulin, e.g. cisplatin-antibody conjugates the drug being an auristatin
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- 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
- A61K47/6835—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 the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site
- A61K47/6851—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 the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site the antibody targeting a determinant of a tumour cell
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- 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
- A61K47/6835—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 the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site
- A61K47/6851—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 the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site the antibody targeting a determinant of a tumour cell
- A61K47/6863—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 the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site the antibody targeting a determinant of a tumour cell the tumour determinant being from stomach or intestines cancer cell
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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
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/81—Amides; Imides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
- C07K5/06—Dipeptides
- C07K5/06008—Dipeptides with the first amino acid being neutral
- C07K5/06017—Dipeptides with the first amino acid being neutral and aliphatic
- C07K5/06034—Dipeptides with the first amino acid being neutral and aliphatic the side chain containing 2 to 4 carbon atoms
Definitions
- the present invention relates to compounds capable of binding to proteins, and the use of these compounds for preparing conjugates with proteins, said conjugates being able further comprise an active principle.
- STATE OF THE ART The beginning of the 2000s saw an intensification of research on conjugates between a protein, in particular an antibody, and a molecule of interest, in particular an active drug ingredient, these conjugates potentially representing an alternative or a complement to "conventional" therapies to selectively deliver an active ingredient.
- an antibody-drug conjugate in English “Antibody Drug Conjugate” or “ADC” constitutes a means of selective delivery of a drug, in particular of a cytotoxic drug.
- the antibody-drug conjugate therefore makes it possible to combine the specificity of the targeting by the antibodies with new powerful effector functions by the agents which are conjugated to them.
- the structure of an antibody-drug conjugate typically consists of an antibody bound to the drug by a molecule one part of which will bind the antibody and another part will couple to the drug, usually via a spacer arm (or linker) of variable length and nature.
- the antibody After binding to its target antigen, the antibody is most often internalized in the cell by receptor-mediated endocytosis.
- the vesicles fuse with lysosomes where the drug is released from the antibody via different mechanisms.
- the active drug then acts directly on the cell by inducing its death and sometimes on neighboring cancer cells by transport or diffusion in the environment.
- the antibody is therefore mainly used as a vector and brings the drug to the targeted cell.
- the stability of antibody-drug conjugates depends in particular on the capacity of the molecule which fixes the antibody to reconstruct the reduced disulfide bridges between the heavy chains and the light chains. of the antibody. It is however desirable to be able to limit the toxicity of the conjugates between a protein and a molecule of interest such as an active ingredient of a medicine, in particular in the context of a therapeutic use of these conjugates.
- attachment heads also called hereafter “attachment heads”
- attachment heads which, when they are conjugated to proteins, in particular antibodies, make it possible to obtain a “structure” such that, on average, the number of conjugated attachment heads per protein (antibody) is controlled: the targeted majority conjugate carrying either 1 molecule per antibody or 2 molecules per antibody.
- the present invention relates to a compound of formula (I): in which X, A, Y and X 1 have the meaning given below in the detailed description of the invention.
- the present invention also relates to a compound of formula (II): in which the attachment head, the connecting arm, the spacer and M have the meaning given below in the detailed description of the invention.
- the present invention also relates to a conjugate which can be obtained by conjugation between a protein comprising at least two disulphide bridges and a compound of formula (I) or compound of formula (II).
- the present invention also relates to a composition comprising at least one aforementioned conjugate.
- aryl is meant a phenyl or naphthyl group.
- saturated, unsaturated or partially unsaturated heterocycle having from 5 to 15 members, and comprising from 1 to 4 heteroatoms chosen from nitrogen, oxygen and sulphur” a monocyclic, bicyclic or tricyclic group, optionally fused, saturated, unsaturated or partially unsaturated, comprising from 1 to 4 heteroatoms, preferably from 1 to 3 heteroatoms, and more preferably 1 or 2 heteroatoms, chosen from nitrogen, oxygen and sulphur.
- an unsaturated monocycle mention may be made of the pyrrolyl, pyrazolyl, imidazolyl, oxazolyl, isoxazolyl, triazolyl, oxadiazolyl, furanyl, thienyl, thiazolyl, isothiazolyl, thiadiazolyl, pyridyl, pyridazinyl, pyrimidinyl, pyrazinyl, triazinyl, azepinyl, oxepinyl or thiepinyl.
- a saturated monocycle mention may be made of the pyrrolidinyl, tetrahydrofuryl, tetrahydrothienyl, pyrrolidinyl, imidazolidinyl, thiazolidinyl, isoxazolidinyl, piperidinyl, piperazinyl, morpholinyl, thiomorpholinyl or hexahydroazepinyl groups.
- a partially unsaturated monocycle mention may be made of the dihydro(is)oxazole group.
- each leaving group X is halogen, tosylate or mesylate, preferably each X is halogen.
- each X is Br.
- each A is the residue of a pyridyl.
- each Y is selected from a direct bond, -CO- and -NH-. In this embodiment, one of the groups Y and Z is advantageously -CO- and the other is advantageously -NH-.
- X 1 is - W is -COR 2 or -CONR 3 R 4 ; - Z is -CO- or -NH-; - R 2 is -OH or -(C 1 -C 6 )alkoxy; - R 4 is –H, -(C 1 -C 6 )alkyl, -(CH 2 CH 2 O) q -R 5 , or -(CR c R d ) r R 5 ; - R 5 is -(CH 2 ) s R 6 or -(CH 2 ) s R 7 ; - R 6 is -COOR 8 , -CONR 8 R 9 or -NR 8 COR 9 ; - R 7 is chosen from:
- R c , R d , R 3 , R 8 and R 9 are as defined above; - m and n are each independently of one another an integer ranging from 0 to 3; - p is equal to 0, 1 or 2; - each q is an integer ranging from 1 to 12; - each r is an integer ranging from 1 to 6; - each s is an integer ranging from 0 to 4.
- X 1 is a group: chosen from:
- - W is -COR 2 or -CONR 3 R 4 ;
- - Z is -CO- or -NH-;
- - R 2 is -OH or -(C 1 -C 6 )alkoxy;
- - R 3 is -H or -(C 1 -C 6 )alkyl;
- - R 4 is -H, -(C 1 -C 6 )alkyl, -(CR c R d ) r R 5 , or -(CH 2 CH 2 O) q R 5 ;
- - R 5 is -(CH 2 ) s R 6 or -(CH 2 ) s R 7 ;
- - R 6 is -COOR 8 , -CONR 8 R 9 or -NR 8 COR 9 ;
- - R 7 is chosen from: ; - R c , R d , R 8 and R 9 are as defined above; - each q is an integer ranging from
- X 1 is advantageously chosen from: .
- X 1 is:
- the compound of formula (I) is a compound of formula (Ia), (Ib) or (Ic): ( ); in each of these formulas W is as defined above.
- W is -COR 2 or -CONR 3 R 4 ;
- R 2 is -OH or -(C 1 -C 6 )alkoxy;
- R 3 is -H or -(C 1 -C 6 )alkyl;
- R 4 is -(CH 2 CH 2 O) q R 5 , or -(CR c R d ) r R 5 ;
- R 5 is -(CH 2 ) s R 6 or -(CH 2 ) s R 7 ;
- R 6 is -COOR 8 ;
- R 7 is chosen from: ;
- R 8 is -H or -(C 1 -C 6 )alkyl;
- R c is -H and each R d is -H or -SO 3 H;
- each q is an integer ranging from 1 to 12;
- each r is an integer ranging from 1 to 6;
- each s is an integer ranging from 0 to 4.
- the compounds of formula (I) are particularly suitable for the homogeneous conjugation and the reconstruction of proteins comprising at least two disulphide bridges, in particular for the reconstruction of antibodies.
- antibody and “immunoglobulin” refer to a heterotetramer consisting of two heavy chains of about 50-70 kDa each (say the H chains for Heavy) and two light chains of about 25 kDa each (say the L chains for Light), linked together by interchain disulphide bridges.
- Each chain is made up, in the N-terminal position, of a region or variable domain, called VL for the light chain, VH for the heavy chain, and in the C-terminal position, of a constant region, made up of a single domain called CL for the light chain and three or four domains called CH1, CH2, CH3, CH4, for the heavy chain.
- antibody fragment means any part of an immunoglobulin obtained by enzymatic digestion, bioproduction or protein engineering comprising at least two disulphide bridges, for example, F(ab′) 2 . Enzymatic digestion of immunoglobulins with pepsin generates an F(ab') 2 fragment and an Fc fragment split into several peptides.
- F(ab') 2 is formed of two Fab' fragments linked by interchain disulphide bridges. Fab parts are consisting of the variable regions and the CH1 and CL domains. The Fab' fragment consists of the Fab region and a hinge region. The ability of the compounds of formula (I) to reconstruct proteins comprising at least two disulphide bridges makes it possible to envisage their use for preparing conjugates between such proteins and a molecule of interest, where appropriate via a spacer arm.
- the present invention relates to a compound of formula (II): in which: - the hook head is a compound of formula (I) as defined above (it being understood that within the framework of the definition of the compound of formula (II) the acid compounds 2,6-bis[2 ,6-bis(bromomethyl)phenyl]benzoic acid and 1,3-bis[[3,5-bis(bromomethyl)phenoxy]-methyl]-5-prop-2-ynoxy-benzene are an integral part of formula (I) ); - The connecting arm is a direct connection; an amino acid residue; a peptide residue; a sugar ; a glucuronide; an -SS- bridge; -NHCH[CH 2 COR 10 ] 2 -; or a formula group: wherein R 10 is a direct bond, a peptide residue (preferably a dipeptide residue), -(CR c R d ) r R 5 , or -(CH 2 CH 2 O)
- an acid or ester group carried by the compound of formula (I) has reacted with an amino group to form an amide-type bond between the hook head and the linker arm (if present) or the spacer (if present) or the molecule of interest.
- the expression “molecule of interest” given in the definition of formula (II) must in fact be understood as meaning “residue of molecule of interest”.
- the part of formula (II) consisting of the connecting arm and the spacer is represented by one of formulas (III) or (IV):
- the molecule of interest is an active principle, a fluorophore or a cage for radioelements.
- - alkylating agents such as: chlorambucil, chlornaphazine, cyclophosphamide, dacarbazine, estramustine, ifosfamide, mechlorethamine, mechlorethamine oxide hydrochloride, mannomustine, mitobronitol, melphalan, mitolactol, pipobroman, novembichine, phenesterine, prednimustine, thiotepa, trofosfamide, uracil mustard, CC-1065 (y including its synthetic analogues adozelesin, carzelesin and bizelecin), duocarmycin (including the synthetic analogues KW-2189 and CBI-TMI), benzodiazepine dimers (for example, pyrrolobenzodiazepine (
- the active principle is chosen from duocarmycin and its analogues, dolastatins, combretastatin and its analogues, calicheamicin, N-acetyl-y-calicheamycin (CMC), a derivative of calicheamycin, maytansin and its analogues, such as a maytansinoid derivative, for example DM1 and DM4, auristatins and their derivatives, such as auristatin E, auristatin EB (AEB), auristatin EFP (AEFP), monomethyl auristatin E (MMAE), monomethyl auristatin F (MMAF), tubulysin, disorazole, epothilones, echinomycin, estramustine, cemadotin, eleutherobin, methopterin, actinomycin , mitomycin C, camptothecin, a camptothecin derivative, SN38,
- the active ingredient is selected from pseudomonas exotoxin (PE), deBouganin, Bouganin, diphtheria toxin (DT) and ricin.
- the active principle is chosen from methotrexate, an immunomodulator, duocarmycin, combretastatin, calicheamicin, monomethyl auristatin E (MMAE), monomethyl auristatin F (MMAF), maytansine, DM1, DM4 , SN38, amanitine and its analogs, pyrrolobenzodiazepine, a pyrrolobenzodiazepine dimer, pyrrolopyridodiazepine, a pyrrolopyridodiazepine dimer, a histone deacetylase inhibitor, a (tyrosine) kinase inhibitor, and ricin, preferably the principle active ingredient is amanitine or MMAE, represented by the following formula: According to another aspect, the invention relates
- the compounds 2,6-bis[2,6-bis(bromomethyl)phenyl]benzoic acid and 1,3-bis[[3,5-bis(bromomethyl)phenoxy] -methyl]-5-prop-2-ynoxy-benzene are an integral part of formula (I) for alternatives (c1) and (c3).
- the compounds of formula (I) and of formula (V) react with each other by carrying out a so-called “click” reaction.
- the click reaction between the compound of formula (I) and the compound of formula (V) takes place between a diene (for example an azide or a diazo) and a dienophile (for example an alkene or an alkyne) , each of these species being respectively provided by R 7 on the one hand in the compound of formula (I), by R 11 , on the other hand in the compound of formula (V).
- a diene for example an azide or a diazo
- a dienophile for example an alkene or an alkyne
- the click reaction can occur: - between a diene carried by the R 7 originating from the compound of formula (I) and a dienophile carried by the R 11 originating from the compound of formula (V); or - between a dienophile carried by the R 7 originating from the compound of formula (I) and a diene carried by the R 11 originating from the compound of formula (V).
- Click reactions are well known to those skilled in the art, and include for example a cycloaddition reaction between a dienophile and a diene. Examples of click reactions are shown in the following diagram:
- the protein comprising at least two disulphide bridges is an antibody or an antibody fragment as defined above.
- the antibody or antibody fragment binds to the tether head by substitution of the leaving groups represented by substituent X in formula (I).
- the reactions (c1) to (c3) described above lead to the reconstruction of the antibody, after reduction of the interchain disulphide bridges.
- the reconstruction of an antibody is defined as obtaining a majority of whole LHHL antibodies.
- the proportion of whole LHHL antibodies and of the other species (LHH, HH, LH, H, L) is determined using the optical density measured by analysis on SDS-PAGE gel under denaturing reducing conditions. Good reconstruction is achieved when the proportion of LHHL exceeds 50%.
- the various reactions (c1) to (c3) make it possible to obtain a “molecule-to-antibody ratio” (MAR) (or ratio of molecules “attached” or “conjugated” by antibody) included in the range from about 0.50 to about 2.50.
- MAR molecule-to-antibody ratio
- the antibody or antibody fragment is conjugated on average at 1.00 ⁇ 0.50 (i.e. any value from 0.50 to 1.50, e.g. 0 .50; 0.51; ....; 1.49; 1.50) molecule, preferably 1.00 ⁇ 0.30 molecule.
- the antibody or antibody fragment is conjugated on average at 2.00 ⁇ 0.50 (i.e. any value from 1.50 to 2.50, e.g.
- molecule should be understood either as a compound of formula (I), or a compound of formula (II), or the product of the reaction (click) between a compound of formula (I) and a compound of formula (V).
- the conjugate formed at the end of reactions (c1), (c2) or (c3) can be represented schematically by the following structure:
- Ac is an antibody or antibody fragment; the molecule is as defined above (it being understood that the antibody or the antibody fragment binds to the attachment head of the molecule by substitution of the leaving groups X); and MAR represents the average number of molecule(s) bound to the antibody or the antibody fragment.
- the MAR is determined for each species (LHHL, LH, L, H, HH, LHH) by HRMS (High Resolution Mass Spectrometry) analysis under denaturing conditions.
- the average MAR is obtained from the MAR per species weighted by the proportions of the species observed in analysis on SDS-PAGE gel under denaturing non-reducing conditions.
- the invention relates to a composition comprising one or more conjugates as defined above.
- the composition can be a pharmaceutical composition containing one or more pharmaceutically acceptable excipients and/or carriers.
- the compounds of formulas (I), (II) and (V) can be prepared according to techniques described in the literature and/or in the examples below.
- the bioconjugation reaction (c1) or (c2) can be implemented by reaction of the protein comprising at least two disulphide bridges with the compound of formula (I) or (II) to be conjugated, in the presence of a reducing agent.
- the protein is in solution in a buffer.
- the reducer is added before the compound to be conjugated.
- the reducing agent and the compound to be conjugated are added simultaneously.
- Reaction (c3) can be carried out by (i) reaction, in the presence of a reducing agent, of the protein comprising at least two disulphide bridges with the compound of formula (I) then addition of the compound of formula (V) and click reaction or by (ii) reaction, in the presence of a reducing agent, of the protein comprising at least two disulphide bridges with a compound resulting from a prior click reaction between the compounds of formula (I) and (V).
- the protein is in solution in a buffer.
- the analyzes were carried out in deuterated chloroform (CDCl 3 ), in deuterated dimethyl sulphoxide (DMSO-d 6 ), in heavy water (D 2 O) or in deuterated methanol (MD 3 OD).
- High Resolution Mass Spectrometry The exact mass of the synthesized compounds was determined by high resolution mass spectrometry (HRMS) in positive or negative mode with the ESI electrospray ionization technique, either on a Bruker maXis mass spectrometer coupled to a Dionex Ultimate 3000 RSLC system from the ICOA/CBM "Research Federation" platform (FR2708), or on a Waters Vion IMS QTof mass spectrometer coupled to a Waters Acquity UPLC H-Class system from the GICC (EA7501). Denaturing High-Resolution Mass Spectrometry (HRMS) Method 1: The analysis of the conjugates was carried out on a sample previously deglycosylated or not.
- N-glycosidase F (0.02 units/ ⁇ g of sample) was added and the sample was incubated at 37°C for at least 16 h.
- the analysis was carried out on a Vion IMS Qtof mass spectrometer coupled to an Acquity UPLC H-Class system from Waters (Wilmslow, UK). Before analysis, the samples (800 ng) were injected on an XBridge BEH300 C4 2.1 x 50 mm, 1.7 ⁇ m column, or on an XBridge BEH300 C4 2.1 x 30 mm, 5 ⁇ m column heated to 90°C.
- a desalting step was carried out with an isocratic gradient of 95% solvent A (H 2 O + 0.1% formic acid) and 5% solvent B (MeCN + 0.1% formic acid) for 1.5-2 min at 0.5 mL/min. Then, the elution of the sample was carried out with a gradient of 20% to 35% of solvent B over 7 min, from 50% to 90% of solvent B over 3 min, and an isocratic of 1 min at 90% of B, i.e. with a gradient of 5% to 50% of solvent B over 2.9 min, from 50% to 90% of solvent B over 0.5 min, an isocratic of 0.5 min at 90% of B, with a flow rate of 0.4 mL/min.
- a bypass valve was programmed to allow solvent to enter the spectrometer between 3 and 7.5 min only.
- Mass spectrometry data were acquired in positive mode with an ESI source over an m/z range of 500 to 4000 at a scan rate of 1 Hz and analyzed using UNIFI 1.9.4 software and the MaxEnt algorithm to deconvolution.
- Method 2 The spectrometric analysis of certain conjugates was carried out on a Bruker maXis mass spectrometer coupled to a Dionex Ultimate 3000 RSLC system.
- MS analysis Prior to MS analysis, samples (5 ⁇ g) were desalted on a MassPREP desalting column (2.1x10 mm, Waters), heated to 80°C using 0.1% aqueous formic acid solution as solvent A and a 0.1% solution of formic acid in acetonitrile as solvent B at 500 ⁇ L/min. After 1 min, a linear gradient from 5 to 90% of B in 1.5 min was applied. MS data was acquired in positive mode with an ESI source over an m/z range of 900 to 5000 at 1 Hz and analyzed using DataAnalysis 4.4 software (Bruker) and the MaxEnt algorithm for deconvolution.
- SDS-PAGE gel under denaturing, non-reducing or reducing conditions The samples were analyzed by SDS-PAGE tris-HCl acrylamide gel. A 4% acrylamide stacking gel on a 6-7% acrylamide running gel were used. 4X Laemmli buffer (0.3 mM bromophenol blue; 2 M glycerol, 20 mM TrisBase; 0.04% sodium dodecyl sulfate) was added to the samples (1.6 ⁇ g).
- the samples were reduced using a 10% solution of dithiothreitol (DTT) in water (10% v/v). Then the samples were incubated at 95°C for 10 min. A large amplitude molecular weight marker (Invitrogen SeeBlue® Plus2 Prestained Standard) and the native antibody were used to estimate the molecular weights of the proteins.
- the gel was run at 100 V for 10 min then at 140 V for 35 min, in NuPAGE running buffer (50 mM MOPS; 50 mM TrisBase; 0.1% SDS (v/v); 1 mM EDTA , pH 7.3). After washing with water, the gel was stained with Coomassie blue (Thermo Scientific ImperialTM Protein Stain).
- Bioconjugation reactions Preparation of solutions Bioconjugation buffer 1: 1X phosphate buffer at pH 8.3, with a final NaCl concentration of 180 mM and a final EDTA concentration of 1 mM. Bioconjugation buffer 2: 1X borate buffer at pH 8.3, with a final NaCl concentration of 25 mM and a final EDTA concentration of 1 mM.
- Reducer 1 Solution of tris(2-carboxyethyl)phosphine hydrochloride (TCEP.HCl) at a concentration of 1 mM in the bioconjugation buffer.
- Reducer 2 Solution of dithiothreitol (DTT) at a concentration of 1 mM in the bioconjugation buffer.
- Bioconjugation reaction 1 The antibody solution in bioconjugation buffer (1.0 eq) was placed under argon. The reducing agent (8.0-12.0 eq) was then added and the reaction medium was incubated at 37° C. for 2 h.
- Bioconjugation reaction 2 The solution of antibodies in the bioconjugation buffer (1.0 eq) was placed under argon. The solutions of compound to be conjugated (1.0-15.0 eq, preferably 8.0-12.0 eq) then of reducing agent (7.0-12.0 eq) were added and the reaction medium was stirred under argon at 37°C for 2 h 30.
- Bioconjugation reaction 3 The solution of antibodies in the bioconjugation buffer (1.0 eq) was placed under argon.
- TBDMSOTf (5.5 mL; 23.974 mmol; 4.2 eq) was added dropwise over 10 min, then the reaction medium was stirred under argon at AT for 19 h. The medium was cooled to 0° C. then neutralized by adding a saturated solution of NaHCO 3 . The aqueous phase was extracted with DCM (3 ⁇ 100 mL) and the combined organic phases were washed with saturated NaCl solution, dried over MgSO 4 , filtered, then concentrated under reduced pressure. The crude was purified by flash chromatography (SiO 2 , cyclohexane/AcOEt, 90:10) to give (3) (2.50 g; 87%) in the form of a beige solid.
- Step 1 methyl 2,3-bis(dibenzylamino)propanoate (7) Racemic methyl 2,3-dibromopropanoate (154.4 ⁇ L; 1.22 mmol; 1.0 eq) was dissolved in 6 mL of absolute EtOH. Then Bn 2 NH (939 ⁇ L; 4.88 mmol; 4.0 eq) was added slowly with stirring, a precipitate formed after about 1 min. The reaction medium was stirred under argon at reflux (71° C.) for 1 hour 30 minutes. The amine salts were filtered off on a frit. Then the filtrate was evaporated under reduced pressure.
- the beige solid obtained was taken up in DCM (20 mL) and then washed with water (2x20 mL) and saturated NaCl solution (1x20 mL). The organic phase was then dried over MgSO 4 and concentrated under reduced pressure. The product was purified by flash chromatography (SiO 2 , cyclohexane/AcOEt 80:20) to give (7) (471 mg; 81%) in the form of a colorless oil.
- Step 3 Methyl 2,3-bis(2,6-bis(((tert-butyldimethylsilyl)oxy)methyl)isonicotinamido)propanoate (9)
- Methyl 2,3-diaminopropanoate hydrochloride (8) (99.7 mg; 0.645 mmol; 1.0 eq) was dissolved in anhydrous DMF (2.4 mL) and anhydrous DIPEA (381.7 ⁇ L 2.19 mmol; 3.4 eq) was added. The reaction medium was stirred under argon at RT for 2 h 20.
- Table 1 1 molecular mass of the deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 2.00 for the LHHL species and an average MAR of 1.00 for the LH species.
- LHH, HH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 2 below.
- Table 2 1 not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 55% and under non-reducing conditions an average MAR of 2.00.
- Example 3 methyl 3-(2,6-bis(bromomethyl)isonicotinamido)-2-((2,6-bis(bromomethyl)isonicotinamido)methyl)propanoate (16) and 3-(2,6-bis( bromomethyl)isonicotinamido)-2-((2,6-bis(bromomethyl)- isonicotinamido)methyl)propanoic acid (17)
- General reaction scheme (a) BnNH 2 , DIPEA, CHCl 3 , 4:25 p.m., 0°C then AT; (b) H 2 , Pd(OH) 2 /C, 1,1,2-trichloroethane, MeOH, 62 h, RT; (c) HATU, 2,6-lutidine, DMF, Compound 4.5h, TA; (d) TBAF, THF, 7:30 a.m.
- Step 1 Methyl 3-(benzylamino)-2-((benzylamino)methyl)propanoate (12), double salt of TFA Methyl 3-bromo-2-(bromomethyl)propanoate (549 ⁇ L; 3.85 mmol; 1.0 eq) was dissolved in anhydrous CHCl 3 (9.6 mL). Then benzylamine (1.68 mL; 15.4 mmol; 4.0 eq) was added dropwise with stirring at 0°C. A precipitate was observed.
- the reaction medium was stirred under argon at 0° C. for 25 min. Then anhydrous DIPEA (1.41 mL; 8.1 mmol; 2.1 eq) was added to the reaction medium drop by drop, the disappearance of the precipitate was observed.
- the reaction medium was stirred under argon at AT for 16 h. The CHCl 3 was evaporated off under reduced pressure. The residue was taken up in AcOEt (15 mL), then washing was carried out with water (5x15 mL) and saturated NaCl solution (1x20 mL). The organic phase was then dried over MgSO 4 and concentrated under reduced pressure.
- 1,1,2-trichloroethane (393 ⁇ L; 4.23 mmol, 2.8 eq) was added and the solution was degassed with argon for 15 min. Then Pd(OH) 2 /C 20% by mass (327.2 mg, 40% m/m) was added. The reaction medium was stirred under a hydrogen atmosphere at AT for 62 h. The Pd(OH) 2 /C was filtered through DicaliteTM then the filtrate was concentrated under reduced pressure. The product (13) (376.1 mg, 99%) salified (1.4 HCl; 0.6 TFA, NMR assay) was obtained in the form of a brown heterogeneous oil.
- Step 5 Methyl 3-(2,6-bis(bromomethyl)isonicotinamido)-2-((2,6-bis(bromomethyl)-isonicotinamido)methyl)propanoate (16) Methyl 3-(2,6-bis(hydroxymethyl)isonicotinamido)-2-((2,6-bis(hydroxymethyl)isonicotinamido)- methyl)propanoate (15) (86.3 mg; 0.187 mmol; 1.0 eq) was suspended in anhydrous MeCN (4.3 mL) then PBr 3 (105 ⁇ L; 1.12 mmol; 6.0 eq) was added dropwise. The reaction medium was stirred at 45° C. for 2 h 30.
- Step 6 3-(2,6-bis(bromomethyl)isonicotinamido)-2-((2,6-bis(bromomethyl)isonicotinamido)methyl)propanoic acid (17) Methyl 3-(2,6-bis(bromomethyl)isonicotinamido)-2-((2,6-bis(bromomethyl)isonicotinamido)- methyl)propanoate (16) (56.8 mg; 0.080 mmol; 1.0 eq) was dissolved in THF (4.4 mL) and a solution of hydrated LiOH (4.8 mg; 0.199 mmol; 2.5 eq) in water (1.99 mL) was added slowly.
- reaction medium was stirred at RT (25°C) for 2 h 10.
- the reaction medium was acidified at 0° C. with an aqueous solution of 0.1 N HCl then extracted with AcOEt (4x10 mL) .
- the combined organic phases were washed with saturated NaCl solution, dried over MgSO 4 and concentrated under reduced pressure.
- Table 3 1 molecular mass of the deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 2.00 for the LHHL species and an average MAR of 1.06 for the LH species.
- LHH, HH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing conditions The results are presented in Table 4 below.
- Table 4 1 not observed Analysis on SDS-PAGE gel made it possible to determine under non-reducing conditions an average MAR of 2.03.
- Example 5 Nivolumab - Compound (16) Conjugate Reagents Bioconjugation Buffer 1, 5 mg/mL nivolumab in Bioconjugation Buffer, Reducer 2 (8.0 eq), Compound (16) (6.0 eq) at a concentration of 1 mM in a mixture of 20% DMF and 80% MeOH.
- Table 5 1 molecular mass of the deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 1.64 for the LHHL species and an average MAR of 1.01 for the LH species.
- LHH, HH and H species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 6 below.
- Table 6 1 not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 79% and under non-reducing conditions an average MAR of 1.75.
- Example 6 Trastuzumab - compound (16) conjugate Reagents Bioconjugation buffer 1, 10 mg/mL trastuzumab in bioconjugation buffer, reducer 1 (7.0 eq), compound (16) (10.6 eq) at a concentration of 3 mM in a mixture of 20% DMF and 80% MeOH.
- Denaturing HRMS analysis according to method 1 The results are presented in Table 7 below. Table 7 1: molecular mass of the deglycosylated species 2: not observed The HRMS analysis made it possible to determine an average MAR of 1.29 for the LHHL species and an average MAR of 1.00 for the LH species. LHH, HH and H species were not observed.
- Table 9 1 molecular mass of the deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 2.25 for the LHHL species and an average MAR of 1.04 for the LH species.
- LHH, HH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 10 below.
- Table 10 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 54% and under non-reducing conditions an average MAR of 2.16.
- Example 8 N-(2-((((2,6-bis(bromomethyl)pyridin-4-yl)carbonyl)amino)-methyl)-19-(11,12-didehydrodibenzo[b,f]azocin-5 (6H)-yl)-3,14,19-trioxo-7,10-dioxa-4,13-diazanonadec-1-yl)-2,6-bis(bromomethyl)pyridine-4-carboxamide (20) and 6 -azidohexanamido-N-hexanamide-valine-citrulline-p-aminobenzoyl carbamate of MMAE (22) General reaction scheme
- Step 1 tert-butyl (2-(2-(2-((6-(11,12-didehydrodibenzo[b,f]azocin-5(6H)-yl)-6-oxohexanoyl)amino)ethoxy)ethoxy) ethyl)carbamate (18) 6-(11,12-didehydrodibenzo[b,f]azocin-5(6H)-yl)-6-oxohexanoic acid (32.1 mg; 0.104 mmol; 1.2 eq) was suspended in the Anhydrous DMF (750 ⁇ L).
- HATU (66.6 mg; 0.175 mmol; 2.0 eq) and 2,6-lutidine (26.2 ⁇ L; 0.225 mmol; 2.6 eq) were added.
- the activation solution was stirred under argon at RT (19°C) for 10 min.
- tert-butyl (2-(2-(2-aminoethoxy)ethoxy)ethyl)carbamate (20.6 ⁇ L; 0.087 mmol; 1.0 eq) was slowly added to the activation medium.
- the reaction medium obtained was stirred under argon at AT for 1 hour 30 minutes.
- the DMF was evaporated under reduced pressure.
- the reaction medium was stirred under argon in the dark and at 25° C. for 1 hour 40 minutes.
- Step 5 6-azidohexanamido-N-hexanamide-valine-citrulline-p-aminobenzoyl carbamate from MMAE (22) 6-Azidohexanoic acid (21) (1.3 mg; 0.008 mmol; 2.0 eq) was dissolved in anhydrous DMF (100 ⁇ L). The solution was cooled to 0°C, then HATU (6.1 mg; 0.016 mmol; 4.0 eq) and 2,6-lutidine (2.8 ⁇ L; 0.024 mmol; 6.0 eq) were added. The activation solution was stirred under argon at 0°C for 15 min.
- Table 11 1 molecular mass of the deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 1.87 for the LHHL species and an average MAR of 1.00 for the LH species.
- LHH, HH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 12 below.
- Table 12 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 96% and under non-reducing conditions an average MAR of 1.88.
- Example 10 Trastuzumab - Compound (20) Conjugate Reagents Bioconjugation Buffer 1, 5 mg/mL trastuzumab in Bioconjugation Buffer, Reducer 1 (7.0 eq), Compound (20) (10.6 eq) at a concentration of 1 mM in a mixture of 80% DMF and 20% MeOH.
- Denaturing HRMS Analysis According to Method 1 The results are shown in Table 13 below. Table 13 1: molecular mass of the deglycosylated species 2: not observed The HRMS analysis made it possible to determine an average MAR of 1.19 for the LHHL species and an average MAR of 1.00 for the LH species. LHH, HH and H species were not observed.
- Example 11 Conjugate trastuzumab – compound (20) – compound (22) Reagents Bioconjugation buffer 1, trastuzumab at 5 mg/mL in the bioconjugation buffer, reducer 1, compound (20) ( 1st compound) (10.6 eq ) at a concentration of 3 mM in a mixture of 20% DMF and 80% MeOH, compound (22) (2 nd compound) (11.7 eq) at a concentration of 10 mM in DMSO.
- Method Bioconjugation reaction 3. The reaction mixture was purified on PD-10 (GE Healthcare) with PBS buffer pH 7.4 Gibco ®. Denaturing HRMS Analysis According to Method 1 The results are shown in Table 15 below.
- Table 15 1 molecular mass of the deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 2.00 for the LHHL species and an average MAR of 1.00 for the LH species.
- LHH, HH, H and L species were not observed. No mass increment corresponding to compound (20) is observed: the trastuzumab-compound (20) conjugate has been entirely converted.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 16 below.
- Table 16 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 97% and under non-reducing conditions an average MAR of 2.00.
- Example 12 Trastuzumab – compound (20) – compound (22) conjugate Reagents Bioconjugation buffer 1, trastuzumab at 5 mg/mL in bioconjugation buffer, reducer 1, compound (20) ( 1st compound) (10.6 eq ) at a concentration of 1 mM in a mixture of 80% DMF and 20% MeOH, compound (22) ( 2nd compound) (11.7 eq) at a concentration of 10 mM in DMSO.
- Method Bioconjugation reaction 3 Denaturing HRMS analysis according to method 1 The results are presented in Table 17 below.
- Table 17 1 molecular mass of the deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 1.17 for the LHHL species and an average MAR of 1.00 for the LH species.
- LHH, HH, H and L species were not observed. No mass increment corresponding to compound (20) is observed: the trastuzumab-compound (20) conjugate has been entirely converted.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 18 below.
- Table 18 1 not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 75% and under non-reducing conditions an average MAR of 1.19.
- Table 19 1 molecular mass of the deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 2.00 for the LHHL species and an average MAR of 1.00 for the LH species.
- LHH, HH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 20 below.
- Table 20 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 61% and under non-reducing conditions an average MAR of 2.00.
- Example 15 Methyl 3,5-bis(2,6-bis(bromomethyl)isonicotinamido)benzoate (26)
- Step 1 Methyl 3,5-bis(2,6-bis(((tert-butyldimethylsilyl)oxy)methyl)-isonicotinamido)benzoate (24) 2,6-bis(((tert-butyldimethylsilyl)oxy)methyl)isonicotinic acid (4) (1.39 g; 3.376 mmol; 2.5 eq) was suspended in peptide DMF (8.0 mL), then HATU (1.54 g; 4.050 mmol; 3.0 eq) and 2,6-lutidine (0.63 mL; 5.439 mmol; 4.0 eq) were added. The activation solution was stirred under argon at RT (25°C) for 45 min.
- Step 3 Methyl 3,5-bis(2,6-bis(bromomethyl)isonicotinamido)benzoate (26) ( ) Methyl 3,5-bis(2,6-bis(((tert-butyldimethylsilyl)oxy)methyl)isonicotinamido)benzoate (25) (64 mg; 0.129 mmol; 1.0 eq) was suspended in MeCN anhydrous (5 mL) then PBr 3 (74 ⁇ L; 0.780 mmol; 6.0 eq) was added dropwise. The suspension was stirred under argon at 45°C for 4 h.
- Example 16 Trastuzumab - compound (26) conjugate Reagents Bioconjugation buffer 1, 5 mg/mL trastuzumab in bioconjugation buffer, reducer 1 (8.0 eq), compound (26) (12.0 eq) at a concentration of 1 mM in a mixture of 20% DMF and 80% MeOH.
- Method Bioconjugation reaction 1. Denaturing HRMS analysis according to method 1 The results are presented in Table 21 below.
- Table 21 1 molecular mass of the deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 2.36 for the LHHL species and an average MAR of 1.00 for the LH species.
- the LHH, HH and H species were not observed SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 22 below.
- Table 22 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 78% and under non-reducing conditions an average MAR of 2.30.
- Example 17 3,5-bis(2,6-bis(bromomethyl)isonicotinamido)benzoic acid (28)
- General reaction scheme (a) LiOH, THF, H 2 O, 43 h, RT; (b) PBr 3 , DMF, 3 h 30, 0°C then AT.
- Step 1 3,5-bis(2,6-bis(hydroxymethyl)isonicotinamido)benzoic acid (27) Methyl 3,5-bis(2,6-bis(hydroxymethyl)isonicotinamido)benzoate (25) (312 mg; 0.628 mmol; 1.0 eq) was suspended in THF (35 mL) and a solution of hydrated LiOH (42 mg; 1.754 mmol; 2.8 eq) in water (17.5 mL) was added. The reaction medium was stirred at RT (25° C.) for 43 h. The medium was acidified with an aqueous solution of 1 N HCl to pH 1 and the THF was evaporated under reduced pressure.
- Step 2 3,5-bis(2,6-bis(bromomethyl)isonicotinamido)benzoic acid (28) 3,5-bis(2,6-bis(hydroxymethyl)isonicotinamido)benzoic acid (27) (20 mg; 0.041 mmol; 1.0 eq) was suspended in anhydrous DMF (1.3 mL) at 0° C. then PBr 3 (32 ⁇ L; 0.337 mmol; 8.2 eq) was added dropwise. The suspension was stirred under argon at RT (25 ° C) for 3 h 30.
- Example 18 Trastuzumab - compound (28) conjugate Reagents Bioconjugation buffer 1, 5 mg/mL trastuzumab in bioconjugation buffer, reducer 1 (12.0 eq), compound (28) (12.0 eq) at a concentration of 1 mM in a mixture of 20% DMF and 80% MeOH.
- Method Bioconjugation reaction 1. Denaturing HRMS analysis according to method 1 The results are presented in Table 23 below. Table 23 1: molecular mass of the deglycosylated species 2: not observed HRMS analysis determined an average MAR of 2.27 for LHHL species and an average MAR of 1.00 for LH species.
- Step 1 methyl 6-(3,5-bis(2,6-bis(hydroxymethyl)isonicotinamido)benzamido)-hexanoate (29) 3,5-bis(2,6-bis(hydroxymethyl)isonicotinamido)benzoic acid (27) (98 mg; 0.203 mmol; 1.0 eq) was suspended in anhydrous DMF (8.0 mL) under argon at 0° C., then HATU (116 mg; 0.305 mmol; 1.5 eq) and 2,6-lutidine (110 ⁇ L; 0.950 mmol; 4.7 eq) were added. The activation solution was stirred under argon at 0°C for 15 min.
- the suspension was stirred under argon at 45°C for 50 min.
- the viscous cream-white reaction medium was suspended by adding anhydrous DMF (1.4 mL).
- the white suspension obtained was stirred at 45° C. for 1 hour 10 minutes.
- the reaction medium was neutralized with water and extracted with AcOEt (3 ⁇ 30 mL). The combined organic phases were washed with saturated NaCl solution, dried over MgSO 4 , filtered and concentrated under reduced pressure.
- Table 27 1 molecular mass of the deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 2.00 for the LHHL species and an average MAR of 1.00 for the LH species.
- LHH, HH and H species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 28 below.
- Table 28 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 54% and under non-reducing conditions an average MAR of 2.00.
- Example 22 6-(3,5-bis(2,6-bis(bromomethyl)isonicotinamido)-benzamido)hexanoic acid (32)
- Step 1 6-(3,5-bis(2,6-bis(hydroxymethyl)isonicotinamido)benzamido)-hexanoic acid (31) Methyl 6-(3,5-bis(2,6-bis(hydroxymethyl)isonicotinamido)benzamido)hexanoate (29) (110 mg; 0.180 mmol; 1.0 eq) was suspended in THF (9 mL) and a solution of 0.1 M LiOH (10.8 mg; 0.451 mmol; 2.5 eq) in water (4.5 mL) was added.
- the reaction medium was stirred at AT (25° C.) for 25 h.
- the medium was acidified with an aqueous solution of 1 N HCl to pH 1 and the THF was evaporated under reduced pressure.
- Step 2 6-(3,5-bis(2,6-bis(bromomethyl)isonicotinamido)benzamido)-hexanoic acid (32) 6-(3,5-bis(2,6-bis(hydroxymethyl)isonicotinamido)benzamido)hexanoic acid (31) (48.7 mg; 0.082 mmol; 1.0 eq) was suspended in MeCN anhydrous (4 mL) then PBr 3 (47 ⁇ L; 0.495 mmol; 6.0 eq) was added dropwise. The suspension was stirred under argon at 45°C for 3 h 10.
- the activation medium was stirred under argon at 25°C for 1 hour 30 minutes.
- a solution of trifluoroacetic acid salt of 6-aminohexanamide-valine-citrulline-p-aminobenzoyl carbamate of MMAE (6) (9.0 mg 0.0067 mmol; 1.0 eq), dissolved in anhydrous DMF (134 ⁇ L) in the presence of DIPEA (4.7 ⁇ L; 0.0270 mmol; 4.0 eq), was added to the activation medium .
- the reaction medium obtained was stirred at 25° C. for 2 h.
- t R 22.6 min; on the Gilson PLC 2050 system [ARMEN V2 (pump) and ECOM TOYDAD600 (UV detector)] detection UV at 254 nm at 25°C; Waters XBridgeTM C-18 column; 5 ⁇ m (250 mm x 19.00 mm
- the activation medium was stirred under argon at 25°C for 30 min.
- a solution of 4-methyltetrazinylphenoxy-3,6,9,12-tetraoxapentadecan-15-amine (3.0 mg; 0.008 mmol; 1.0 eq)
- anhydrous DIPEA 13.1 ⁇ L; 0.075 mmol; 10.0 eq
- the reaction medium obtained was stirred under argon at 25° C. for 1 h.
- Example 25 1-trans-cyclooctenyl-1-oxo-5,8,11,14-tetraoxa-2-azahetaptadecan-17-amide-valine-citrulline-p-aminobenzoyl carbamate from MMAE (35) 1-trans-cyclooctenyl-1-oxo-5,8,11,14-tetraoxa-2-azahetaptadecan-17-oic acid (5.5 mg; 0.013 mmol; 1.6 eq) was dissolved in DMF anhydrous (200 ⁇ L).
- the reaction medium was cooled to 0° C., then HATU (12.7 mg; 0.033 mmol; 4.1 eq) and 2,6- lutidine (5.6 ⁇ L; 0.049 mmol; 5.2 eq) were added.
- the activation solution was stirred under argon at 0°C for 15 min.
- a solution of trifluoroacetic acid salt of valine-citrulline-p-aminobenzoyl carbamate of MMAE (10.0 mg; 0.008 mmol; 1.0 eq), solubilized in anhydrous DMF (200 ⁇ L), was added to the medium of activation.
- the reaction medium was placed under stirring, under argon at RT for 16 h.
- Example 26 Trastuzumab - Compound (34) Conjugate Reagents Bioconjugation Buffer 1, 5 mg/mL trastuzumab in Bioconjugation Buffer, Reducer 1 (7.0 eq), Compound (34) (10.6 eq) at a concentration of 1 mM in a mixture of 80% DMF and 20% MeOH.
- Denaturing HRMS analysis according to method 2 The results are presented in Table 29 below. Table 29 1: molecular mass of the deglycosylated species 2: not observed The HRMS analysis made it possible to determine an average MAR of 1.00 for the LHHL species and of 0.77 for the LH species. LHH, HH, H and L species were not observed.
- Table 30 1 not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 61% and under non-reducing conditions an average MAR of 1.02.
- Example 27 Trastuzumab – compound (34) – compound (35) conjugate Reagents Bioconjugation buffer 1, trastuzumab at 5 mg/mL in bioconjugation buffer, reducer 1, compound (34) ( 1st compound) (10.6 eq ) at a concentration of 1 mM in a mixture of 80% DMF and 20% MeOH, compound (35) (2 nd compound) (11.7 eq) at a concentration of 10 mM in DMSO.
- Example 28 Trastuzumab - Compound (34) Conjugate Reagents Bioconjugation Buffer 1, 5 mg/mL trastuzumab in Bioconjugation Buffer, Reducer 1 (8.0 eq), Compound (34) (12.0 eq) at a concentration of 3 mM in a mixture of 20% DMF and 80% MeOH.
- Method Bioconjugation reaction 1. Denaturing HRMS analysis according to method 2 The results are presented in Table 33 below. Table 33 1: molecular mass of the non-deglycosylated species 2: not observed The HRMS analysis made it possible to determine an average MAR of 2.00 for the LHHL species and of 1.00 for the LH species. LHH, HH, H and L species were not observed.
- Example 29 Trastuzumab – compound (34) – compound (35) conjugate Reagents Bioconjugation buffer 1, 5 mg/mL trastuzumab in bioconjugation buffer, reducer 1, compound (34) (1 st compound) (8.0 eq ) at a concentration of 3 mM in a mixture of 20% DMF and 80% MeOH, compound (35) (2 nd compound) (8.8 eq) at a concentration of 10 mM in DMSO.
- Method Bioconjugation reaction 3 3. Denaturing HRMS analysis according to method 2 The results are presented in Table 35 below.
- Table 35 1 molecular mass of the deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 2.00 for the LHHL species and an average MAR of 1.00 for the LH species.
- LHH, HH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing conditions The results are presented in Table 36 below.
- Table 36 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 69% and under non-reducing conditions an average MAR of 2.00.
- Example 30 2-(2-(2-(trans-cyclooctenylcarbamoyl)ethoxy)ethoxy)ethyl)carbamoylpropane-1,3-diyl(2,6-bis(bromomethyl)isonicotinamide) (36) Under an inert atmosphere, in the dark and under anhydrous conditions, 3-(2,6-bis(bromomethyl)isonicotinamido)-2-((2,6-bis(bromomethyl)isonicotinamido)methyl)-propanoic acid (17 ) (14.7 mg; 0.021 mmol; 2.2 eq) was suspended in anhydrous MeCN (1.4 mL) then EEDQ (39.2 mg; 0.159 mmol; 16.4 eq) was added .
- the activation medium was stirred under argon at 25°C for 30 min.
- a solution of trans-cyclooctenyl(2-(2-(2-aminoethoxy)ethoxy)ethyl)carbamate (2.9 mg; 0.010 mmol; 1.0 eq), dissolved in anhydrous DMF (1.25 mL) in the presence of anhydrous DIPEA (17.0 ⁇ L; 0.098 mmol; 10.1 eq), was added to the activation medium.
- the reaction medium obtained was stirred under argon at 25° C. for 1 hour.
- Example 31 4-methyleteatrazinylphenoxy-3,6,9,12-tetraoxapentadecan-15-amide-valine-citrulline-p-aminobenzoyl carbamate from MMAE (37) 4-Methylteatrazinylphenoxy-3,6,9,12-tetraoxapentadecan-15-oic acid (4.5 mg; 0.011 mmol; 1.3 eq) was dissolved in anhydrous DMF (200 ⁇ L).
- the reaction medium was cooled to 0° C., then HATU (12.2 mg; 0.032 mmol; 3.9 eq) and 2,6-lutidine (5.6 ⁇ L; 0.049 mmol; 6.0 eq) were added.
- the activation solution was stirred under argon at 0°C for 15 min.
- a solution of trifluoroacetic acid salt of valine-citrulline-p-aminobenzoyl carbamate of MMAE (10.1 mg; 0.008 mmol; 1.0 eq), solubilized in anhydrous DMF (200 ⁇ L), was added to the medium of activation.
- the reaction medium was placed under stirring, under argon at RT for 16 h.
- Example 32 Trastuzumab - Compound (36) Conjugate Reagents Bioconjugation Buffer 1, 5 mg/mL trastuzumab in Bioconjugation Buffer, Reducer 1 (7.0 eq), Compound (36) (3.0 eq) at a concentration of 0.25 mM in a mixture of 80% DMF and 20% MeOH.
- Denaturing HRMS analysis according to method 2 The results are presented in Table 37 below. Table 37 1: molecular mass of the non-deglycosylated species 2: not observed The HRMS analysis made it possible to determine an average MAR of 1.18 for the LHHL species and 1.0 for the LH species. LHH, HH, H and L species were not observed.
- Example 33 Trastuzumab – compound (36) – compound (37) conjugate Reagents Bioconjugation buffer 1, 5 mg/mL trastuzumab in bioconjugation buffer, reducer 1, compound (36) (1 st compound) (3.0 eq ) at a concentration of 0.25 mM in a mixture of 80% DMF and 20% MeOH, compound (37) (2 nd compound) (3.3 eq) at a concentration of 10 mM in DMSO.
- Method Bioconjugation reaction 3 3. Denaturing HRMS analysis according to method 2 The results are presented in Table 39 below.
- Table 39 1 molecular mass of the non-deglycosylated species 2: not observed HRMS analysis determined an average MAR of 1.20 for the LHHL species and an average MAR of 1.00 for the LH species. LHH, HH, H and L species were not observed. SDS-PAGE gel analysis under denaturing non-reducing conditions The results are presented in Table 40 below. Table 40 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 63% and under non-reducing conditions an average MAR of 1.32.
- Example 34 panitumumab – compound (36) conjugate Reagents Bioconjugation buffer 1, panitumumab at 5 mg/mL in bioconjugation buffer, reducer 1 (10.6 eq), compound (36) (18.0 eq) at a concentration of 3 mM in a mixture of 20% DMF and 80% MeOH.
- Method Bioconjugation reaction 1. Denaturing HRMS analysis according to method 2 The results are presented in Table 41 below. Table 41 1: molecular mass of the non-deglycosylated species 2: not observed The HRMS analysis made it possible to determine an average MAR of 0.98 for the LHHL species and of 1.00 for the LH species. LHH, HH, H and L species were not observed.
- Table 43 1 molecular mass of the non-deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 2.00 for the LHHL species and of 1.00 for the LH species.
- LHH, HH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 44 below.
- Table 44 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 60% and under non-reducing conditions an average MAR of 2.00.
- Example 36 Trastuzumab – compound (36) – compound (37) conjugate Reagents Bioconjugation buffer 1, 5 mg/mL trastuzumab in bioconjugation buffer, reducer 1 (8.0 eq), compound (36) (1 st compound ) (12.0 eq) at a concentration of 3 mM in a mixture of 30% DMF and 70% MeOH, compound (37) ( 2nd compound) (13.2 eq) at a concentration of 10 mM in DMSO.
- Method Bioconjugation reaction 4 Denaturing HRMS analysis according to method 2 The results are presented in Table 45 below.
- Table 45 1 molecular mass of the non-deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 2.00 for the LHHL species and an average MAR of 1.00 for the LH species.
- LHH, HH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 46 below.
- Table 46 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 62% and under non-reducing conditions an average MAR of 2.00.
- Example 37 4- ⁇ 2-azatricyclo[10.4.0.0 4.9 ]hexadeca-1(12),4(9),5,7,13,15-hexaen-10-yn-2-yl ⁇ -N- (2- ⁇ 2-[2-(3- ⁇ [2,6-bis(bromomethyl)pyridin-4-yl]formamido ⁇ -2-( ⁇ [2,6-bis(bromomethyl)pyridin-4-yl] formamido ⁇ methyl) - propanamido)ethoxy]ethoxy ⁇ ethyl) ⁇ 4 ⁇ oxobutanamide (38) Under an inert atmosphere, in the dark and under anhydrous conditions, 3-(2,6-bis(bromomethyl)isonicotinamido)-2-((2,6-bis(bromomethyl)isonicotinamido)methyl)-propanoic acid (17 ) (17.7 mg; 0.025 mmol; 2.1 eq) was suspended in anhydrous MeCN (1.69 m
- the activation medium was stirred under argon at 25°C for 30 min.
- the reaction medium obtained was stirred under argon at 25° C.
- Table 47 1 molecular mass of the deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 1.07 for the LHHL species.
- LHH, HH, LH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 48 below.
- Table 48 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 93% and under non-reducing conditions an average MAR of 1.07.
- Example 39 Conjugate trastuzumab – compound (38) – compound (22) Reagents Bioconjugation buffer 1, trastuzumab at 5 mg/mL in the bioconjugation buffer, reducer 1, compound (38) ( 1st compound) (10.6 eq ) at a concentration of 1 mM in a mixture of 80% DMF and 20% MeOH, compound (22) ( 2nd compound) (11.7 eq) at a concentration of 10 mM in DMSO.
- Method Bioconjugation reaction 3 Denaturing HRMS analysis according to method 2 The results are presented in Table 49 below.
- Table 49 1 molecular mass of the deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 1.00 for the LHHL species and an average MAR of 1.00 for the LH species.
- LHH, HH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 50 below.
- Table 50 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 77% and under non-reducing conditions an average MAR of 1.00.
- Example 40 conjugate trastuzumab - compound (38) - commercial compound AF488 Reagents Bioconjugation buffer 1, trastuzumab at 5 mg/mL in the bioconjugation buffer, reducer 1, compound (38) ( 1st compound) (10.6 eq) at a concentration of 1 mM in a mixture of 80% DMF and 20% MeOH, commercial compound (AF488, marketed by the company ThermoFisher Scientific) ( 2nd compound) (11.7 eq) at a concentration of 10 mM in of DMSO.
- Method Bioconjugation reaction 3 Denaturing HRMS analysis according to method 2 The results are presented in Table 51 below.
- Table 51 1 molecular mass of the non-deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 1.27 for the LHHL species and an average MAR of 1.00 for the LH species.
- LHH, HH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 52 below.
- Table 52 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 94% and under non-reducing conditions an average MAR of 1.28.
- Example 41 Trastuzumab - Compound (38) Conjugate Reagents Bioconjugation Buffer 1, 5 mg/mL trastuzumab in Bioconjugation Buffer, Reducer 1 (7.0 eq), Compound (38) (12.0 eq) at a concentration of 3 mM in a mixture of 20% DMF and 80% MeOH.
- Denaturing HRMS analysis according to method 2 The results are presented in Table 53 below. Table 53 1: molecular mass of the deglycosylated species 2: not observed The HRMS analysis made it possible to determine an average MAR of 2.00 for the LHHL species and of 1.00 for the LH species. LHH, HH, H and L species were not observed.
- Example 42 Trastuzumab – compound (38) – compound (22) conjugate Reagents Bioconjugation buffer 1, 5 mg/mL trastuzumab in bioconjugation buffer, reducer 1, compound (38) (1 st compound) (12.0 eq ) at a concentration of 3 mM in a mixture of 20% DMF and 80% MeOH, compound (22) ( 2nd compound) (13.2 eq) at a concentration of 10 mM in DMSO.
- Example 44 (4- ⁇ 2 - [2 - (6 - ⁇ 2 - azatricyclo[10.4.0.0 4.9 ]hexadeca- 1(12),4(9),5,7,13,15- hexaen - 10 -yn-2-yl ⁇ -6-oxohexanamido)-3-methylbutanamido]-5-(carbamoylamino)pentanamido ⁇ phenyl)methyl N- ⁇ 1-[(1- ⁇ [1-(2- ⁇ 2-[( 1-hydroxy-1-ph enylpropan-2-yl)carbamoyl]-1-m ethoxy-2-methylethyl ⁇ pyrrolidin-1-yl)-3-m ethoxy-5-m ethyl-1-oxohepta n-4- yl](methyl)carbamoyl ⁇ -2-m ethylpropyl)carbamoyl]-2-m ethylpropy
- the reaction medium was stirred at AT, and HATU (3.0 mg; 0.008 mmol; 2.0 eq) and 2,6-lutidine (1.2 ⁇ L; 0.010 mmol; 2.5 eq) were added.
- the activation solution was stirred under argon at 21°C for 10 min.
- a solution of trifluoroacetic acid salt of valine-citrulline-p-aminobenzoyl carbamate of MMAE (5.0 mg; 0.004 mmol; 1.0 eq), solubilized in anhydrous DMF (100 ⁇ L), was added to the medium of activation.
- the reaction medium was stirred, under argon at RT for 1 h 30.
- Table 57 1 molecular mass of the non-deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 2.00 for the LHHL species and of 1.00 for the LH species.
- LHH, HH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 58 below.
- Table 58 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 66% and under non-reducing conditions an average MAR of 2.00.
- Example 46 Conjugate trastuzumab - compound (39) - compound (40) Reagents Bioconjugation buffer 1, 5 mg/mL trastuzumab in bioconjugation buffer, reducer 1 (8.0 eq), compound (39) (1 st compound) (12.0 eq) at a concentration of 3 mM in a mixture of 20% DMF and 80% MeOH, compound (40) ( 2nd compound) (13.2 eq) at a concentration of 10 mM in DMSO.
- Method Bioconjugation reaction 4 Denaturing HRMS analysis according to method 2 The results are presented in Table 59 below.
- Table 59 1 molecular mass of the non-deglycosylated species 2: not observed 3: intermediate compound trastuzumab – compound (39) not clicked with compound (40)
- the HRMS analysis made it possible to determine an average MAR of 1.81 for the LHHL species and an average MAR of 1.00 for LH species.
- LHH, HH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 60 below.
- Table 60 1 not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 63% and under non-reducing conditions an average MAR of 1.84.
- Example 47 bicyclo[6.1.0]non-4-yn-9-ylmethyl (4-((2,6-bis(bromomethyl)isonicotinamido)methyl)-1-(2,6-bis(bromomethyl)pyridin-4 - yl)-1,5-dioxo-9,12,15,18-tetraoxa-2,6-diazaicosan-20-yl)carbamate (41) Under an inert atmosphere, in the dark and under anhydrous conditions, 3-(2,6-bis(bromomethyl)isonicotinamido)-2-((2,6-bis(bromomethyl)isonicotinamido)methyl)-propanoic acid (17 ) (8.3 mg; 0.012 mmol; 1.6 eq) was suspended in anhydrous MeCN (1.4 mL) then EEDQ (30.3 mg; 0.123 mmol; 17.0 eq) was added .
- the activation medium was stirred under argon at 25°C for 30 min.
- a solution of bicyclo[6.1.0]non-4-yn-9-ylmethyl (14-amino-3,6,9,12-tetraoxatetradecyl)carbamate (3.8 mg; 0.007 mmol; 1.0 eq), dissolved in anhydrous DMF (1 mL) in the presence of anhydrous DIPEA (15.0 ⁇ L; 0.086 mmol; 11.9 eq), was added to the activation medium.
- the reaction medium obtained was stirred under argon at 25° C. for 1 h.
- Example 48 Trastuzumab Conjugate - Compound (41) Reagents Bioconjugation buffer 1, 5 mg/mL trastuzumab in bioconjugation buffer, reducer 1 (7.0 eq), compound (41) (10.6 eq) at 1 mM concentration in 80% DMF mix and 20% MeOH.
- Denaturing HRMS analysis according to method 2 The results are presented in Table 61 below. Table 61 1: molecular mass of the non-deglycosylated species 2: not observed The HRMS analysis made it possible to determine an average MAR of 1.05 for the LHHL species and of 1.00 for the LH species. LHH, HH, H and L species were not observed.
- Example 49 Trastuzumab – compound (41) – compound (22) conjugate Reagents Bioconjugation buffer 1, trastuzumab at 5 mg/mL in bioconjugation buffer, reducer 1, compound (41) ( 1st compound) (10.6 eq ) at a concentration of 1 mM in a mixture of 80% DMF and 20% MeOH, compound (22) ( 2nd compound) (11.7 eq) at a concentration of 10 mM in DMSO.
- Method Bioconjugation reaction 3 Denaturing HRMS analysis according to method 2 The results are presented in Table 63 below.
- Table 63 1 molecular mass of the non-deglycosylated species 2: not observed 3: intermediate compound trastuzumab – compound (41) not clicked with compound (22)
- the HRMS analysis made it possible to determine an average MAR of 1.16 for the LHHL species and an average MAR of 0.49 for the LH species.
- LHH, HH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 64 below.
- Table 64 1 not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 70% and under non-reducing conditions an average MAR of 1.07.
- Example 50 Conjugate trastuzumab - compound (41) - commercial compound AF488 Reagents Bioconjugation buffer 1, trastuzumab at 5 mg/mL in the bioconjugation buffer, reducer 1, compound (41) ( 1st compound) (10.6 eq) at a concentration of 1 mM in a mixture of 80% DMF and 20% MeOH, commercial compound (AF488) ( 2nd compound) (11.7 eq) at a concentration of 10 mM in DMSO. ( ) Method Bioconjugation reaction 3. Denaturing HRMS analysis according to method 2 The results are presented in Table 65 below.
- Table 65 1 molecular mass of the non-deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 1.26 for the LHHL species and an average MAR of 0.86 for the LH species.
- LHH, HH and H species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 66 below.
- Table 66 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 69% and under non-reducing conditions an average MAR of 1.30.
- Example 51 Conjugate trastuzumab - compound (41) - commercial compound N 3 -Cap-Val-Cit-PAB-C6-amanintine Reagents Bioconjugation buffer 1, trastuzumab at 5 mg/mL in bioconjugation buffer, reducer 1, compound ( 41) ( 1st compound) (10.6 eq) at a concentration of 1 mM in a mixture of 80% DMF and 20% MeOH, commercial compound (N 3 -Cap-Val-Cit-PAB-C6-amanintine , obtained from the company Levena Biopharma) ( 2nd compound) (12.7 eq) at a concentration of 10 mM in DMSO.
- Table 68 1 not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 72% and under non-reducing conditions an average MAR of 1.44.
- Example 52 Trastuzumab - Compound (41) Conjugate Reagents Bioconjugation Buffer 1, 5 mg/mL trastuzumab in Bioconjugation Buffer, Reducer 1 (8.0 eq), Compound (41) (12.0 eq) at a concentration of 3 mM in a mixture of 20% DMF and 80% MeOH. Method Bioconjugation reaction 1. Denaturing HRMS analysis according to method 2 The results are presented in Table 69 below.
- Table 69 1 molecular mass of the non-deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 2.00 for the LHHL species and of 1.00 for the LH species.
- LHH, HH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 70 below.
- Table 70 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 62% and under non-reducing conditions an average MAR of 2.00.
- Example 53 Trastuzumab – compound (41) – compound (22) conjugate Reagents Bioconjugation buffer 1, 5 mg/mL trastuzumab in bioconjugation buffer, reducer 1 (8.0 eq), compound (41) (1 st compound ) (12.0 eq) at a concentration of 3 mM in a mixture of 20% DMF and 80% MeOH, compound (22) ( 2nd compound) (13.2 eq) at a concentration of 10 mM in DMSO.
- Method Bioconjugation reaction 4 Denaturing HRMS analysis according to method 2 The results are presented in Table 71 below.
- Table 71 1 molecular mass of the non-deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 2.00 for the LHHL species and an average MAR of 1.00 for the LH species.
- LHH, HH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 72 below.
- Table 72 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 56% and under non-reducing conditions an average MAR of 2.00.
- Example 54 Conjugate trastuzumab - compound (41) - commercial compound AF488 Reagents Bioconjugation buffer 1, trastuzumab at 5 mg/mL in bioconjugation buffer, reducer 1 (8.0 eq), compound (41) ( 1st compound) (12.0 eq) at a concentration of 3 mM in a mixture of 20% DMF and 80% MeOH, compound (AF488) ( 2nd compound) (13.2 eq) at a concentration of 10 mM in DMSO .
- Example 55 Conjugate trastuzumab - compound (41) - commercial compound N 3 -Cap-Val-Cit-PAB-C6-amanintine Reagents Bioconjugation buffer 1, trastuzumab at 5 mg/mL in bioconjugation buffer, reducer 1 (8, 0 eq), compound (41) ( 1st compound) (12.0 eq) at a concentration of 3 mM in a mixture of 20% DMF and 80% MeOH, commercial compound (N 3 -Cap-Val-Cit -PAB-C6-amanintine) ( 2nd compound) (13.2 eq) at a concentration of 10 mM in DMSO.
- Table 76 1 not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 52% and under non-reducing conditions an average MAR of 2.00.
- Example 56 MMAE 2-amino-3-sulfopropanamido-valine-citrulline-p-aminobenzoyl carbamate, TFA salt (42) ( ) 2-( ⁇ [(9H-fluoren-9-yl)methoxy]carbonyl ⁇ amino)-3-sulfopropanoic acid (4.9 mg; 0.013 mmol; 1.6 eq) was dissolved in anhydrous DMF (200 ⁇ L).
- the reaction medium was cooled to 0°C, then HATU (15.2 mg; 0.040 mmol; 5.0 eq) and 2,6-lutidine (5.6 ⁇ L; 0.049 mmol; 6.0 eq) were been added.
- the activation solution was stirred under argon at 0°C for 5 min.
- a solution of the trifluoroacetic acid salt of valine-citrulline-p- aminobenzoyl carbamate of MMAE (10.0 mg; 0.008 mmol; 1.0 eq), dissolved in anhydrous DMF (200 ⁇ L), was added to the activation medium.
- the reaction medium was placed under stirring, under argon at RT for 15 h 40.
- the activation medium was stirred under argon at 25°C for 40 min.
- a solution of (42) (4.7 mg; 0.0034 mmol; 1.0 eq), dissolved in anhydrous DMF (68 ⁇ L) in the presence of anhydrous DIPEA (5.9 ⁇ L; 0.034 mmol; 10.0 eq), was added to the activation medium.
- the reaction medium obtained was stirred under argon at 25° C. for 3 h.
- Table 77 1 molecular mass of the non-deglycosylated species 2: not observed
- the HRMS analysis made it possible to determine an average MAR of 1.00 for the LHHL species and of 0.61 for the LH species.
- LHH, HH, H and L species were not observed.
- SDS-PAGE gel analysis under denaturing non-reducing and reducing conditions The results are presented in Table 78 below.
- Table 78 1: not observed Analysis on SDS-PAGE gel made it possible to determine under reducing conditions a reconstruction of 60% and under non-reducing conditions an average MAR of 1.02.
- Example 59 Trastuzumab - Compound (43) Conjugate Reagents Bioconjugation Buffer 1, 5 mg/mL trastuzumab in Bioconjugation Buffer, Reducer 1 (7.0 eq), Compound (43) (12.0 eq) at a concentration of 3 mM in a mixture of 20% DMF and 80% MeOH.
- Denaturing HRMS analysis according to method 2 The results are presented in Table 79 below. Table 79 1: molecular mass of the non-deglycosylated species 2: not observed The HRMS analysis made it possible to determine an average MAR of 2.00 for the LHHL species and of 1.00 for the LH species. LHH, HH, H and L species were not observed.
- Example 60 MMAE amine 3-[2-(2-aminoethoxy)ethoxy]-propanamido-valine-citrulline-p-aminobenzoyl carbamate, TFA salt (44) 1-(9H-fluoren-9-yl)-3-oxo-2,7,10-trioxa-4-azatridecan-13-oic acid (4.0 mg; 0.010 mmol; 1.2 eq) was dissolved in anhydrous DMF (200 ⁇ L). The reaction medium was cooled to 0°C, then HATU (12.5 mg; 0.033 mmol; 4.0 eq) and 2,6-lutidine (5.6 ⁇ L; 0.049 mmol; 5.8 eq) were been added.
- TFA salt (44) 1-(9H-fluoren-9-yl)-3-oxo-2,7,10-trioxa-4-azatridecan-13-oic acid (4.0 mg; 0.010 mmol; 1.2 eq) was
- the activation solution was stirred under argon at 0°C for 15 min.
- a solution of trifluoroacetic acid salt of valine-citrulline-p-aminobenzoyl carbamate of MMAE (10.3 mg; 0.008 mmol; 1.0 eq), solubilized in anhydrous DMF (200 ⁇ L), was added to the medium of activation.
- the reaction medium was placed under stirring, under argon at RT for 16 h. Piperidine (80 ⁇ L, 20% v/v) was added and the reaction medium was stirred under argon at AT for 10 min.
- the activation medium was stirred under argon at 25°C for 30 min.
- a solution of (44) (2.5 mg; 0.002 mmol; 1.0 eq), dissolved in anhydrous DMF (360 ⁇ L) in the presence of anhydrous DIPEA (3.1 ⁇ L; 0.018 mmol; 10.0 eq), was added to the activation medium.
- the reaction medium obtained was stirred under argon at 25° C. for 1 hour.
- the reaction medium was cooled to 0°C, then a solution of HATU (30.9 mg; 0.081 mmol; 3.0 eq) and 2,6-lutidine (18.8 ⁇ L; 0.162 mmol; 6.0 eq ), solubilized in peptide DMF (150 ⁇ L), was added.
- the activation solution was stirred under argon at 0°C for 10 min.
- Example 63 N 1 ,N 5 -bis(2-(2-(2-(2-azidoethoxy)ethoxy)ethoxy)ethyl)-3-(3-(2,6-bis(bromomethyl)isonicotinamido)-2- ((2,6-bis(bromomethyl)isonicotinamido)methyl)propanamido)pentanediamide (47) ( ) Under an inert atmosphere, in the dark and under anhydrous conditions, 3-(2,6-bis(bromomethyl)isonicotinamido)-2-((2,6-bis(bromomethyl)isonicotinamido)methyl)-propanoic acid (17) (16.3 mg; 0.023 mmol; 1.6 eq) was suspended in anhydrous MeCN (400 ⁇ L) then EEDQ (6.2 mg; 0.025 mmol; 1.7 eq) was added .
- the activation medium was stirred under argon at 25°C for 45 min.
- a solution of (46) (8.0 mg; 0.0146 mmol; 1.0 eq), dissolved in anhydrous DMF (100 ⁇ L) in the presence of anhydrous DIPEA (11.8 ⁇ L; 0.068 mmol; 4.7 eq ), was added to the activation medium.
- the reaction medium obtained was stirred under argon at 25° C. for 1 hour.
- Example 64 Trastuzumab - Compound (47) Conjugate Reagents Bioconjugation Buffer 1, 5 mg/mL trastuzumab in Bioconjugation Buffer, Reducer 2 (8.0 eq), Compound (47) (12.0 eq) at a concentration of 3 mM in a mixture of 20% DMF and 80% MeOH.
- Method Bioconjugation reaction 1. Denaturing HRMS analysis according to method 2 The results are presented in Table 81 below. Table 81 1: molecular mass of the non-deglycosylated species 2: not observed The HRMS analysis made it possible to determine an average MAR of 1.87 for the LHHL species and of 1.00 for the LH species. LHH, HH, and H species were not observed.
- Example 65 Trastuzumab – compound (47) – compound (40) conjugate Reagents Bioconjugation buffer 1, 5 mg/mL trastuzumab in bioconjugation buffer, reducer 2 (8.0 eq), compound (47) (1 st compound ) (12.0 eq) at a concentration of 3 mM in a mixture of 20% DMF and 80% MeOH, compound (40) ( 2nd compound) (30.0 eq) at a concentration of 1 mM in DMSO.
- Method Bioconjugation reaction 4 4.
- the reaction mixture was purified on PD-10 (GE Healthcare) with PBS buffer Gibco ® pH 7.4, the concentration of the intermediate conjugate trastuzumab-compound (47) is adjusted to 1 4 mg/mL before adding compound (40) and the reaction medium was stirred for 22 h.
- Denaturing HRMS Analysis According to Method 2 The results are shown in Table 83 below. Table 83 1: molecular mass of the non-deglycosylated species 2: not observed 3: ND: structural impurity not determined
- the HRMS analysis made it possible to determine an average MAR of 1.70 for the LHHL species and an average MAR of 0. 90 for the LH species. LHH, HH, and H species were not observed.
- Example 66 Trastuzumab - Compound (47) Conjugate Reagents Bioconjugation Buffer 1, 5 mg/mL trastuzumab in Bioconjugation Buffer, Reducer 1 (7.0 eq), Compound (47) (10.6 eq) at a concentration of 1 mM in a mixture of 80% DMF and 20% MeOH. Method Bioconjugation reaction 2.
- Example 67 Trastuzumab – compound (47) – compound (40) conjugate Reagents Bioconjugation buffer 1, trastuzumab at 5 mg/mL in bioconjugation buffer, reducer 1, compound (47) ( 1st compound) (10.6 eq ) at a concentration of 1 mM in a mixture of 80% DMF and 20% MeOH, compound (40) (2 nd compound) (15.0 eq) at a concentration of 1 mM in DMSO.
- the reaction mixture was purified on PD-10 (GE Healthcare) with PBS buffer Gibco ® pH 7.4, the concentration of the intermediate conjugate trastuzumab-compound (47) is adjusted to 1 .5 mg/mL before adding compound (40) and the reaction medium was stirred for 22 h.
- Denaturing HRMS Analysis According to Method 2 The results are shown in Table 87 below.
- Table 87 1 molecular mass of the non-deglycosylated species 2: not observed 3: ND: impurity of undetermined structure
- the HRMS analysis made it possible to determine an average MAR of 1.02 for the LHHL species and an average MAR of 0.80 for the LH species. LHH, HH, and H species were not observed.
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EP21755528.3A EP4181964A1 (fr) | 2020-07-20 | 2021-07-19 | Composes capables de se lier a des proteines et conjugues obtenus a partir de ces composes |
US18/006,070 US20230277678A1 (en) | 2020-07-20 | 2021-07-19 | Compounds capable of binding to proteins and conjugates obtained from these compounds |
CA3186027A CA3186027A1 (fr) | 2020-07-20 | 2021-07-19 | Composes capables de se lier a des proteines et conjugues obtenus a partir de ces composes |
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WO2023012437A1 (fr) * | 2021-08-05 | 2023-02-09 | Mc Saf | Conjugués anticorps-médicament |
WO2023135397A1 (fr) | 2022-01-17 | 2023-07-20 | Mc Saf | Procédé de préparation de conjugués anticorps-médicament |
WO2023135398A1 (fr) | 2022-01-17 | 2023-07-20 | Mc Saf | Conjugues anticorps-medicament pour utilisation therapeutique |
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WO2015004400A1 (fr) * | 2013-07-11 | 2015-01-15 | Universite Francois Rabelais | Nouveaux conjugués anticorps-médicament et leur utilisation en thérapie |
WO2016064749A2 (fr) * | 2014-10-20 | 2016-04-28 | Igenica Biotherapeutics, Inc. | Nouveaux conjugués anticorps-médicament et composés, compositions et procédés d'utilisation s'y rapportant |
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CA3106493A1 (fr) * | 2018-12-17 | 2020-06-25 | Remegen, Co., Ltd. | Lieur pour des conjugues anticorps-medicament et utilisations connexes |
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WO2020234541A1 (fr) * | 2019-05-20 | 2020-11-26 | Mc Saf | Conjugues anticorps-medicament et leur utilisation en therapie |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2023012437A1 (fr) * | 2021-08-05 | 2023-02-09 | Mc Saf | Conjugués anticorps-médicament |
FR3125965A1 (fr) * | 2021-08-05 | 2023-02-10 | Mc Saf | Conjugués anticorps-médicament |
WO2023135397A1 (fr) | 2022-01-17 | 2023-07-20 | Mc Saf | Procédé de préparation de conjugués anticorps-médicament |
WO2023135398A1 (fr) | 2022-01-17 | 2023-07-20 | Mc Saf | Conjugues anticorps-medicament pour utilisation therapeutique |
FR3131836A1 (fr) * | 2022-01-17 | 2023-07-21 | Mc Saf | Conjugués anticorps-médicament pour utilisation thérapeutique |
FR3131835A1 (fr) * | 2022-01-17 | 2023-07-21 | Mc Saf | Procédé de préparation de conjugués anticorps-médicament |
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