WO2020111280A1 - 核酸複合体 - Google Patents
核酸複合体 Download PDFInfo
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- WO2020111280A1 WO2020111280A1 PCT/JP2019/047044 JP2019047044W WO2020111280A1 WO 2020111280 A1 WO2020111280 A1 WO 2020111280A1 JP 2019047044 W JP2019047044 W JP 2019047044W WO 2020111280 A1 WO2020111280 A1 WO 2020111280A1
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- 239000005720 sucrose Substances 0.000 description 1
- 150000005846 sugar alcohols Chemical class 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- POHWAQLZBIMPRN-UHFFFAOYSA-N tert-butyl n-(3-aminopropyl)carbamate Chemical compound CC(C)(C)OC(=O)NCCCN POHWAQLZBIMPRN-UHFFFAOYSA-N 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- BCNZYOJHNLTNEZ-UHFFFAOYSA-N tert-butyldimethylsilyl chloride Chemical compound CC(C)(C)[Si](C)(C)Cl BCNZYOJHNLTNEZ-UHFFFAOYSA-N 0.000 description 1
- 125000003698 tetramethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- AXZWODMDQAVCJE-UHFFFAOYSA-L tin(II) chloride (anhydrous) Chemical compound [Cl-].[Cl-].[Sn+2] AXZWODMDQAVCJE-UHFFFAOYSA-L 0.000 description 1
- 230000000451 tissue damage Effects 0.000 description 1
- 231100000827 tissue damage Toxicity 0.000 description 1
- 238000001890 transfection Methods 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- RULSWEULPANCDV-PIXUTMIVSA-N turanose Chemical compound OC[C@@H](O)[C@@H](O)[C@@H](C(=O)CO)O[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O RULSWEULPANCDV-PIXUTMIVSA-N 0.000 description 1
- 208000001072 type 2 diabetes mellitus Diseases 0.000 description 1
- GNTQICZXQYZQNE-SRQIZXRXSA-N tyvelose Chemical compound C[C@@H](O)[C@@H](O)C[C@H](O)C=O GNTQICZXQYZQNE-SRQIZXRXSA-N 0.000 description 1
- KYPWIZMAJMNPMJ-UHFFFAOYSA-N tyvelose Natural products CC1OC(O)C(O)CC1O KYPWIZMAJMNPMJ-UHFFFAOYSA-N 0.000 description 1
- LNRUEZIDUKQGRH-YZUCMPLFSA-N umbelliferose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O[C@@H]2[C@@H]([C@@H](O)[C@@H](O)[C@@H](CO)O2)O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 LNRUEZIDUKQGRH-YZUCMPLFSA-N 0.000 description 1
- DRTQHJPVMGBUCF-UHFFFAOYSA-N uracil arabinoside Natural products OC1C(O)C(CO)OC1N1C(=O)NC(=O)C=C1 DRTQHJPVMGBUCF-UHFFFAOYSA-N 0.000 description 1
- 229940045145 uridine Drugs 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
- 229930028731 β-maltose Natural products 0.000 description 1
Images
Classifications
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- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H15/00—Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
- C07H15/02—Acyclic radicals, not substituted by cyclic structures
- C07H15/04—Acyclic radicals, not substituted by cyclic structures attached to an oxygen atom of the saccharide radical
-
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
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- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/11—DNA or RNA fragments; Modified forms thereof; Non-coding nucleic acids having a biological activity
- C12N15/113—Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides; Antisense DNA or RNA; Triplex- forming oligonucleotides; Catalytic nucleic acids, e.g. ribozymes; Nucleic acids used in co-suppression or gene silencing
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- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/7088—Compounds having three or more nucleosides or nucleotides
- A61K31/7105—Natural ribonucleic acids, i.e. containing only riboses attached to adenine, guanine, cytosine or uracil and having 3'-5' phosphodiester links
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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
- A61K47/54—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
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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
- A61K47/54—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
- A61K47/549—Sugars, nucleosides, nucleotides or nucleic acids
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- A61K48/00—Medicinal preparations containing genetic material which is inserted into cells of the living body to treat genetic diseases; Gene therapy
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H21/00—Compounds containing two or more mononucleotide units having separate phosphate or polyphosphate groups linked by saccharide radicals of nucleoside groups, e.g. nucleic acids
- C07H21/02—Compounds containing two or more mononucleotide units having separate phosphate or polyphosphate groups linked by saccharide radicals of nucleoside groups, e.g. nucleic acids with ribosyl as saccharide radical
-
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- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H5/00—Compounds containing saccharide radicals in which the hetero bonds to oxygen have been replaced by the same number of hetero bonds to halogen, nitrogen, sulfur, selenium, or tellurium
- C07H5/04—Compounds containing saccharide radicals in which the hetero bonds to oxygen have been replaced by the same number of hetero bonds to halogen, nitrogen, sulfur, selenium, or tellurium to nitrogen
- C07H5/06—Aminosugars
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- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/87—Introduction of foreign genetic material using processes not otherwise provided for, e.g. co-transformation
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- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/10—Type of nucleic acid
- C12N2310/11—Antisense
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- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/10—Type of nucleic acid
- C12N2310/14—Type of nucleic acid interfering N.A.
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- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/30—Chemical structure
- C12N2310/35—Nature of the modification
- C12N2310/351—Conjugate
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- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/30—Chemical structure
- C12N2310/35—Nature of the modification
- C12N2310/351—Conjugate
- C12N2310/3515—Lipophilic moiety, e.g. cholesterol
Definitions
- the present invention relates to a nucleic acid complex and a pharmaceutical composition containing the nucleic acid complex.
- nucleic acid drugs include aptamers, antisenses, decoy nucleic acids, ribozymes, siRNAs, miRNAs and antimiRNAs. Nucleic acid drugs are expected to be clinically applied to various diseases that have been difficult to treat until now because of their high versatility of controlling all the genes in cells. Nucleic acid drugs are expected as next-generation drugs next to antibodies and low-molecular drugs because of their high intracellular target selectivity and high activity. However, a problem with nucleic acid drugs is that delivery to target tissues is difficult.
- Targeting compounds include ligands capable of binding to extracellularly expressed receptors.
- GalNAc N-acetyl-D-galactosamine
- ASGPR asialoglycoprotein receptor
- Patent Documents 1 and 2 disclose the nucleic acid complex shown below.
- Patent Document 3 discloses a nucleic acid complex having the following structure having the same sugar ligand-tether unit as the nucleic acid complexes disclosed in Patent Documents 1 and 2.
- Patent Document 4 discloses a nucleic acid complex having the structure shown below as a sugar ligand-tether unit.
- APCS amyloid P component, serum
- SAP Serum amyloid P
- Pentraxin-2 has a pentameric structure of a glycoprotein composed of 223 amino acids.
- APCS is a glycoprotein produced by the liver and is present in blood at relatively high concentrations of 30-50 ⁇ g/mL.
- APCS has a biochemical property of binding to all types of amyloid fibrils in a calcium-dependent manner, and it is known that amyloid of patients with amyloid contains as much as 20,000 mg of APCS.
- Non-patent document 2 Since APCS is present in amyloid in patients with all amyloid-related diseases, it has been used as a diagnostic marker in patients with amyloid-related diseases.
- Amyloid-related diseases are diseases in which abnormal insoluble protein fibers known as amyloid fibrils are deposited in tissues and cause organ damage. It has been clarified that APCS can stabilize amyloid bound to APCS by inducing resistance to degradation by protease and resistance to phagocytosis by immune cells by binding to amyloid. It has been strongly suggested from studies using animal models and clinical studies that inhibition of amyloid deposits can reduce amyloid deposition in organs and tissue damage associated therewith (Non-patent Documents 4 and 5). Although it can be expected that amyloid-related diseases can be prevented or treated by specifically suppressing the expression of APCS, no drug that specifically suppresses the expression of APCS has been reported so far.
- the object of the present invention is to provide a nucleic acid complex capable of suppressing the expression of APCS.
- Formula 1 (In formula 1, X is a double-stranded nucleic acid consisting of a sense strand and an antisense strand and containing a double-stranded region of at least 11 base pairs, The double-stranded nucleic acid has one of the target APCS mRNA sequences described in Table 1-1 to Table 1-13 in an oligonucleotide chain having a chain length of 17 to 30 nucleotides in the antisense strand.
- -S-CO-, -NH-CO-, -CO-O-, -CO-S- or -CO-NH-, Q1, Q2, Q3 and Q4 each independently represent absent, substituted or unsubstituted alkylene having 1 to 12 carbons or —(CH 2 CH 2 O) n —CH 2 CH 2 —.
- N is an integer from 0 to 99
- B1 and B2 are each independently a bond or any structure represented by the following formula 2-1.
- the terminal black dot in each structure is P2 or P3 or P5, respectively.
- p1 and p2 are each independently an integer of 1, 2 or 3
- q1, q2, q3 and q4 are each independently an integer of 0 to 10
- P3 and P6, Q2 and Q4 T1 and T2, and L1 and L2 may be the same or different
- q1 to q4 are 2 to 10
- the respective combinations of -[P2-Q1]-, -[Q2-P3]-, -[P5-Q3]-, -[Q4-P6]- may be the same or different.
- Formula 7-1 Formula 7-2: Formula 7-3: Formula 7-4: Formula 7-5: Formula 7-6: Formula 7-7: Formula 7-8: Formula 7-9: (In formulas 7-1 to 7-9, X, S3, L1 and L2 are as defined above. ) [10] The nucleic acid complex according to any one of [1] to [9], wherein the sugar ligand is N-acetylgalactosamine. [11] The nucleic acid complex according to any one of [1] to [10], wherein the double-stranded nucleic acid contains a modified nucleotide.
- nucleic acid complex according to any one of [1] to [11], wherein the 3'end of the sense strand and the 5'end of the antisense strand form blunt ends.
- nucleic acid complex according to [11] wherein the double-stranded nucleic acid contains a sugar moiety-modified nucleotide.
- Formula 7-8-1 (In formula 7-8-1, X has the same meaning as above.) [15] Any one of [1] to [14], wherein X is a pair of sense strand/antisense strand selected from the group consisting of sense strand/antisense strand shown in Table 1-1 to Table 1-13. The nucleic acid complex according to item 1. [16] X is a pair of sense strand/antisense strand selected from the group consisting of sense strand/antisense strand described in Table M1-1 to Table M1-3 and Table R-1 to Table R-4, The nucleic acid complex according to any one of [1] to [14].
- X is a pair of sense strand/antisense strand consisting of a sense strand having a 3′ end bound to S3 and an antisense strand of any one of SEQ ID NOs: 2126, 2144, and 2146, [1] to [14]
- [16-A2] The nucleic acid complex according to [16-A1], which has a structure represented by the following formula 6-1 to formula 6-9.
- Formula 6-7 (In formulas 6-7, X, S3, P3, Q2, T1, L1 and q2 are as defined above. )
- [16-A3] The nucleic acid complex according to [16-A1], which has a structure represented by the following formula 7-8.
- Formula 7-8 (In formulas 7-8, X, S3, L1 and L2 are as defined above. ) [16-A4] The nucleic acid complex according to [16-A1], which has a structure represented by the following formula 7-8-1.
- [16-B2] The nucleic acid complex according to [16-B1], which has a structure represented by the following formula 6-1 to formula 6-9.
- Formula 6-7 (In formulas 6-7, X, S3, P3, Q2, T1, L1 and q2 are as defined above. )
- [16-B3] The nucleic acid complex according to [16-B1], which has a structure represented by the following formula 7-8.
- Formula 7-8 (In formulas 7-8, X, S3, L1 and L2 are as defined above. )
- [16-B4] The nucleic acid complex according to [16-B1], which has a structure represented by the following formula 7-8-1.
- Formula 7-8-1 (In formula 7-8-1, X has the same meaning as above.) [17] A pharmaceutical composition comprising the nucleic acid complex according to any one of [1] to [16]. [18] The pharmaceutical composition according to [17], which is to be introduced into cells. [19] The pharmaceutical composition according to [17] or [18], which is administered intravenously or subcutaneously. [20] Administering the nucleic acid complex according to any one of [1] to [16] or the pharmaceutical composition according to any one of [17] to [19] to a patient in need thereof. A method of treating or preventing a disease comprising.
- a double-stranded nucleic acid is introduced into a cell using the nucleic acid complex according to any one of [1] to [16] or the pharmaceutical composition according to any one of [17] to [19].
- a method for suppressing the expression of the APCS gene which comprises: [22] An amyloid-related disease, which comprises administering the nucleic acid complex according to any one of [1] to [16] or the pharmaceutical composition according to any one of [17] to [19] to a mammal. How to treat. [23] A medicament for use in treating an amyloid-related disease, comprising the nucleic acid complex according to any one of [1] to [16] or the pharmaceutical composition according to any one of [17] to [19]. ..
- a therapeutic agent for an amyloid-related disease comprising the nucleic acid complex according to any one of [1] to [16] or the pharmaceutical composition according to any one of [17] to [19].
- a pharmaceutical composition containing the nucleic acid complex of the present invention can be administered to a mammal to treat various related diseases in vivo.
- FIG. 8 is a diagram showing changes in blood human APCS concentration in each mouse group in Test Example 2.
- the APCS concentration on Day 0 shows the value 6 days before the administration, and the first administration day was set to Day 0.
- the horizontal axis represents the number of days elapsed from the first administration day as day 0, and the vertical axis represents the blood human APCS concentration ( ⁇ g/mL).
- ⁇ indicates a control group, and ⁇ indicates a compound 5-2 10 mg/kg administration group. Error bars in the figure indicate standard deviation (SD).
- the nucleic acid complex of the present invention is a nucleic acid complex represented by the following formula 1.
- Formula 1 :
- X is a double-stranded nucleic acid consisting of a sense strand and an antisense strand and containing a double-stranded region of at least 11 base pairs
- the double-stranded nucleic acid has one of the target APCS mRNA sequences described in Table 1-1 to Table 1-13 in an oligonucleotide chain having a chain length of 17 to 30 nucleotides in the antisense strand.
- the 3'or 5'end of the sense strand binds to S3, L1 and L2 are each independently a sugar ligand, S1, S2 and S3 are each independently a linker.
- S1 and S2 may be bonded to the benzene ring at the ortho position, the meta position, and the para position with respect to the substitution position on the benzene ring of S3, respectively.
- the body is preferred.
- the bond of S1 and S2 to the benzene ring in Formula 1 means that it can be at any position other than the substitution position of S3 on the benzene ring.
- X, L1, L2, S1, S2 and S3 are as defined above. In the present specification, the same meaning as described above will be explained by exemplifying Formula 1-1, and for each of X, L1, L2, S1 and S2 in Formula 1-1, X, L1, It means that it can be the same group as the definition for each of L2, S1 and S2.
- X is a double-stranded nucleic acid consisting of a sense strand and an antisense strand and containing a double-stranded region of at least 11 base pairs.
- the double-stranded nucleic acid is a target APCS mRNA described in Table 1-1 to Table 1-13 described later in an oligonucleotide chain having a chain length of 17 to 30 nucleotides in the antisense strand. It is complementary to any of the sequences.
- the 3'or 5'end of the sense strand is attached to S3.
- L1 and L2 are each independently a sugar ligand.
- the sugar ligand means a group derived from a sugar (monosaccharide, disaccharide, trisaccharide, polysaccharide, etc.) capable of binding to a receptor expressed in a target cell.
- the sugar ligand when the sugar ligand is bound to the S1 and S2 linkers by O-bonding, the sugar ligand means that a moiety excluding the hydroxyl group involved in the binding of the sugar constituting the sugar ligand is a sugar. It means a group derived from.
- the sugar ligand that is the target of the oligonucleotide may be selected.
- Examples of the monosaccharides include allose, altose, arabinose, cladinose, erythrose, erythrulose, fructose, D-fucitol, L-fucitol, fucosamine, fucose, fucose, galactosamine, D-galactosaminitol, N-acetyl-galactosamine, Galactose, glucosamine, N-acetyl-glucosamine, glucosaminitol, glucose, glucose-6-phosphate, gulose, glyceraldehyde, L-glycero-D-manno-heptose, glycerol, glycerone, gulose, idose, lyxose, mannosamine , Mannose, mannose-6-phosphate, psicose, quinovose, quinovosamine, rhamnitol, rhamnosamine, rham
- disaccharides trisaccharides, polysaccharides, for example, abekuose, acarbose, amiseose, amylopectin, amylose, apiose, alkanose, ascarylose, ascorbic acid, boibinose, cellobiose, cellotriose, cellulose, cacotriose, calcose, chitin, coritose, Cyclodextrin, cimarose, dextrin, 2-deoxyribose, 2-deoxyglucose, diginose, digitalose, digitoxose, everose, evemitrose, fructooligosaccharide, galto-oligosaccharide, gentianose, gentiobiose, gentiobiose, gentiobiose, gentiobiose, gentiobiose.
- Each monosaccharide in the saccharide may be D-form or L-form, or may be a mixture of D-form and L-form at an arbitrary ratio.
- Sugars include deoxy sugars (alcohol hydroxy groups replaced by hydrogen atoms), amino sugars (alcohol hydroxy groups replaced by amino groups), thio sugars (alcohol hydroxy groups replaced by thiols, or C ⁇ O).
- seleno sugar telluro sugar
- aza sugar ring carbon is replaced with nitrogen
- imino sugar ring oxygen is replaced with nitrogen
- phosphano sugar ring oxygen substituted with phosphorus
- phospha sugar ring carbon substituted with phosphorus
- C-substituted monosaccharide hydroogen atom at non-terminal carbon atom substituted with carbon atom
- It may contain an unsaturated monosaccharide, alditol (having a carbonyl group substituted with a CHOH group), aldonic acid (having an aldehyde group substituted with a carboxy group), ketoaldonic acid, uronic acid, aldaric acid and the like.
- amino sugar which is a simple sugar, galactosamine, glucosamine, mannosamine, fucosamine, quinovosamine, neuraminic acid, muramic acid, lactosediamine, acosamine, bacilosamine, daunosamine, desosamine, forosamine, gallosamine, canosamine, cansosamine (kansomisamine, kamisominamie).
- Examples include perosamine, pneuimosamine, purpurosamine, and rhodosamine.
- the amino group of the amino sugar may be substituted with an acetyl group or the like.
- sialic acid-containing sugar chain examples include a sugar chain containing NeuAc at the non-reducing end of the sugar chain. Specifically, a sugar chain containing NeuAc-Gal-GlcNAc or Neu5Ac ⁇ (2-6)Gal ⁇ (1 -3) GlcNAc and the like can be mentioned.
- Each monosaccharide in the saccharide may be substituted with a substituent, for example, a hydroxyl group may be substituted, as long as it can bind to the receptor expressed in the target cell, each monosaccharide
- the hydrogen atom in is optionally substituted with one or more azides and/or optionally substituted aryl groups.
- the sugar ligand it is preferable to select a sugar ligand that binds to a receptor expressed on the surface of the target cell corresponding to each target organ.
- a sugar ligand for a receptor expressed on the surface of a hepatocyte is preferable, and a sugar ligand for an asialoglycoprotein receptor (ASGPR) is more preferable.
- ASGPR asialoglycoprotein receptor
- sugar ligand for ASGPR mannose or N-acetylgalactosamine is preferable, and N-acetylgalactosamine is more preferable.
- sugar ligands having higher affinity for ASGPR for example, sugar derivatives described in Bioorganic Medicinal Chemistry, 17, 7254 (2009) and Journal of American Chemical Society, 134, 1978 (2012) and the like are known. You may use these.
- S1, S2 and S3 are linkers.
- S1 and S2 are not particularly limited as long as they are structures that connect the sugar ligands L1 and L2 to the benzene ring, and known structures used in nucleic acid complexes may be adopted.
- S1 and S2 may be the same or different.
- the sugar ligands L1 and L2 are preferably linked to S1 and S2 by a glycosidic bond.
- S1 and S2 are a benzene ring and, for example, —CO—, —NH—, —O—, —S—, —O—CO—, —S—CO—, —NH—CO—, —CO—O—. , —CO—S— or —CO—NH— bond, respectively.
- S3 is not particularly limited as long as it is a structure that connects X, which is a double-stranded nucleic acid, and a benzene ring, and a known structure used in a nucleic acid complex may be adopted.
- the oligonucleotide X is preferably linked to S3 by a phosphodiester bond.
- S3 is a benzene ring, for example, —CO—, —NH—, —O—, —S—, —O—CO—, —S—CO—, —NH—CO—, —CO—O—, — They may be linked by a CO-S- or -CO-NH- bond.
- the linkers for S1, S2 and S3 are, for example, WO 2009/073809, WO 2013/075035, WO 2015/105083, WO 2014/179620, WO 2015/006740.
- the structure disclosed in 1 may be adopted.
- the nucleic acid complex is preferably a nucleic acid complex having a structure represented by the following formula 2.
- Formula 2 :
- X, L1, L2 and S3 are respectively as defined above, P1, P2, P3, P4, P5 and P6, and T1 and T2 are each independently absent or —CO—, —NH—, —O—, —S—, —O—CO—.
- Q1, Q2, Q3 and Q4 each independently represent absent, substituted or unsubstituted alkylene having 1 to 12 carbons or —(CH 2 CH 2 O) n —CH 2 CH 2 —.
- N is an integer of 0 to 99.
- P1 and P4 each independently do not exist, or are —CO—, —NH—, —O—, —S—, —O—CO—, —S—CO—, —NH—CO—, -CO-O-, -CO-S- or -CO-NH-, preferably -O-, -O-CO-, -NH-CO- or -CO-NH-, and -O -, -NH-CO- or -CO-NH- is more preferred, and -NH-CO- is even more preferred.
- P1 or P4 is, for example, —NH—CO—, it has a partial structure of —NH—CO-benzene ring.
- Q1, Q2, Q3 and Q4 each independently represent absent, substituted or unsubstituted alkylene having 1 to 12 carbons or —(CH 2 CH 2 O) n —CH 2 CH 2 —.
- n are integers of 0 to 99, preferably substituted or unsubstituted alkylene having 1 to 12 carbon atoms, more preferably unsubstituted alkylene having 1 to 12 carbon atoms, and unsubstituted Alkylene having 1 to 6 carbon atoms is more preferable, and unsubstituted alkylene having 1 to 4 carbon atoms is even more preferable.
- P2 and P5 each independently do not exist, or are —CO—, —NH—, —O—, —S—, —O—CO—, —S—CO—, —NH—CO—, -CO-O-, -CO-S- or -CO-NH-, but not present, preferably -CO-O- or -CO-NH-, not present or -CO-NH It is more preferably ⁇ .
- P2 and P5 are, for example, —CO—NH—, they have a partial structure of B1-CO—NH-Q1 and B2-CO—NH-Q3.
- m5 and m6 are each independently an integer of 0 to 10
- the terminal black circles in the structures of Formula 3-1 to Formula 3-3 are the bonding points with B1 or B2 or P1 or P4, respectively. is there.
- B1 and B2 are each independently a bond or any structure represented by the following formula, and the black dots at the ends of each structure are P2 or P3 or P5 or P6, respectively. Is a bonding point, and m1, m2, m3, and m4 are each independently an integer of 0 to 10.
- B1 and B2 are preferably groups derived from amino acids including unnatural amino acids such as glutamic acid, aspartic acid, lysine and iminodiacetic acid, or amino alcohols such as 2-amino-1,3-propanediol, and B1 And B2 are groups derived from glutamic acid and aspartic acid, it is preferable that the amino groups of glutamic acid and aspartic acid are bonded to each other, and P2 and P5 are —NH—CO— bonds, and B1 and B2 are lysine.
- B1 and B2 are groups derived from iminodiacetic acid, It is preferable that the amino groups of iminodiacetic acid are bonded to each other to form —CO— bonds as P2 and P5.
- B1 and B2 preferably have the following structures.
- P3 and P6, Q2 and Q4, T1 and T2, and L1 and L2, respectively, may be the same or different.
- q1 to q4 are 2 to 10
- the respective combinations of -[P2-Q1]-, -[Q2-P3]-, -[P5-Q3]-, -[Q4-P6]- are the same or different. May be.
- the nucleic acid complex is preferably a nucleic acid complex having a structure represented by the following formulas 4-1 to 4-9.
- Formula 4-1 :
- X, L1, L2, S3, P3, P6, T1, T2, Q2, Q4, q2 and q4 are as defined above.
- P3 and P6 each independently do not exist, or are —CO—, —NH—, —O—, —S—, —O—CO—, —S—CO—, —NH—CO—, It is —CO—O—, —CO—S— or —CO—NH—, preferably —O—CO— or —NH—CO—, and more preferably —NH—CO—.
- P3 and P6 are, for example, —NH—CO—, they have partial structures of B1-NH—CO-Q2 and B2-NH—CO-Q4, respectively.
- T1 and T2 each independently do not exist, or are —CO—, —NH—, —O—, —S—, —O—CO—, —S—CO—, —NH—CO—, It is -CO-O-, -CO-S- or -CO-NH-, preferably -O- or -S-, more preferably -O-.
- the nucleic acid complex is preferably a nucleic acid complex having a structure represented by the following formula 5.
- P1 and P4, P2 and P5, P3 and P6, Q1 and Q3, Q2 and Q4, B1 and B2, T1 and T2, L1 and L2, p1 and p2, q1 and q3, and q2 and q4 in Equation 2 are obtained.
- X, S3, P1, P2, P3, Q1, Q2, B1, T1, L1, p1, q1 and q2 are as defined above. Further, X, S3, P1, P2, P3, Q1, Q2, B1, T1, L1, p1, q1 and q2 in formula 5 may each be the above-mentioned preferred groups, but P1 is -CO- It is preferably NH-, -NH-CO- or -O-. It is preferable that —(P2-Q1) q1 — in Formula 5 does not exist or has any structure represented by Formula 3-1 to Formula 3-3 above.
- the nucleic acid complex is preferably a nucleic acid complex having a structure represented by the following formulas 6-1 to 6-9.
- Formula 6-1 :
- the nucleic acid complex is preferably a nucleic acid complex having a structure represented by any of the following formulas 7-1 to 7-9.
- Formula 7-1 :
- formula 7-1 to formula 7-9 X, L1, L2 and S3 are as defined above. L1 and L2 may be the same or different, and are preferably the same.
- formulas 7-1 to 7-9 formulas 7-1 to 7-7 are prepared by introducing alkylene chains having different chain lengths into the alkylene groups and substituting an amide bond with another bond. Nucleic acid derivatives other than the nucleic acid complex having the structure represented by -9 can also be produced.
- the nucleic acid complex is preferably a nucleic acid complex having a structure represented by the following formula 11.
- Formula 11 :
- L1, L2, S1S2 and X have the same meanings as defined above, P7 and P8 each independently do not exist, or are —CO—, —NH—, —O—, —S—, —O—CO—, —S—CO—, —NH—CO—, -CO-O-, -CO-S- or -CO-NH-, Q5, Q6 and Q7 each independently represent absent, substituted or unsubstituted alkylene having 1 to 12 carbon atoms or —(CH 2 CH 2 O) n8 —CH 2 CH 2 —, and n8 Is an integer from 0 to 99, B3 is referred to as a blanker unit in the present specification, and has any structure represented by the following formula 11-1, and broken lines mean bonds with Q5 and Q6, respectively.
- Formula 11-1 :
- the substitution on the group having a triazole ring is at either the 1-position nitrogen atom or the 3-position nitrogen atom of the triazole ring.
- q5 and q6 are each independently an integer of 0 to 10.
- P7 does not exist, or —CO—, —NH—, —O—, —S—, —O—CO—, —S—CO—, —NH—CO—, —CO—O—, — CO-S- or -CO-NH-, preferably -O-, -NH-CO- or -CO-NH-, more preferably -O- or -NH-CO- .
- P7 is, for example, —O—, it has a partial structure of benzene ring —O—.
- P8 does not exist or is -CO-, -NH-, -O-, -S-, -O-CO- , -S-CO-, -NH-CO-, -CO-O-, -CO-S- or -CO-NH- but if present, -CO-O- or -CO-NH-. It is preferable that it is —CO—NH—.
- P8 is, for example, —CO—NH—, it has a partial structure of Q6-CO—NH—.
- Q5, Q6 and Q7 each independently represent absent, substituted or unsubstituted alkylene having 1 to 12 carbon atoms or —(CH 2 CH 2 O) n8 —CH 2 CH 2 —, and n8 Is an integer of 0 to 99, preferably substituted or unsubstituted alkylene having 1 to 12 carbon atoms, more preferably unsubstituted alkylene having 1 to 12 carbon atoms, and unsubstituted carbon number. It is more preferably alkylene having 1 to 6 and even more preferably unsubstituted alkylene having 1 to 4 carbon atoms.
- q5 — is —O—(CH 2 ) m15 —NH— and —NH—CO—(CH 2 ) m16 —NH, and m15 and m16 are each independently 1-10. Is preferably an integer.
- the nucleic acid complex is preferably a nucleic acid complex having a structure represented by any of the following formula 12-1 to formula 12-12.
- Formula 12-1 :
- X, L1, L2, S1 and S2 are as defined above, and n1′ to n12′ are each independently an integer of 1 to 10.
- the nucleic acid complex of the present invention is a nucleic acid complex represented by the formula 1, wherein the structure represented by the formula 2 corresponding to S1 and S2 and the structure represented by the formula 11 corresponding to S3 are combined. Is preferred.
- Formula 2 may be Formula 4-1 to Formula 4-9, Formula 6-1 to Formula 6-9, Formula 7-1 to Formula 7-9, Formula When 2 is the formula 4-1 to the formula 4-9, the formula 6-1 to the formula 6-9, or the formula 7-1 to the formula 7-9, the formula 11 becomes the formula 12-1 to the formula 12- It may be 12.
- the nucleic acid complex of the present invention is the nucleic acid complex represented by Formula 1, wherein any one of the structures described in Formula 4-1 to Formula 4-9 corresponding to S1 and S2 and Formula 12 corresponding to S3.
- nucleic acid complex is a nucleic acid complex in which any one of the structures represented by Formula 12-1 to Formula 12-12 corresponding to S3 is combined.
- the nucleic acid complex of the present invention is preferably represented by the following formula 7-8-1.
- Formula 7-8-1 (In formula 7-8-1, X has the same meaning as above.)
- X in Formula 1 is a double-stranded nucleic acid consisting of a sense strand and an antisense strand and containing a double-stranded region of at least 11 base pairs, wherein the double-stranded nucleic acid is It is complementary to any of the target APCS mRNA sequences listed in Table 1-1 to Table 1-13 in an oligonucleotide chain with a length of 1 to 30 nucleotides.
- X binding to S3 is a sense strand constituting a double-stranded nucleic acid, and is described in Table 1-1 to Table 1- 13 or the sense strand represented by the sense strand sequence in Table M1-1 to Table M1-3 and Table R-1 to Table R-2.
- a nucleic acid containing a base sequence complementary to APCS mRNA is called an antisense strand nucleic acid
- a nucleic acid containing a base sequence complementary to the base sequence of an antisense strand nucleic acid is also called a sense strand nucleic acid.
- the double-stranded nucleic acid that constitutes the nucleic acid complex of the present invention is a double-stranded nucleic acid having the ability to reduce or stop the expression of APCS gene when introduced into a mammalian cell, which is a sense strand and an antisense strand.
- the sense strand and the antisense strand have at least 11 base pairs, in the antisense strand at least 17 nucleotides and at most 30 nucleotides, that is, 17 to 30 nucleotides
- the oligonucleotide chain having a chain length of is complementary to the target APCS mRNA sequence selected from the group described in Table 1-1 to Table 1-13.
- the double-stranded nucleic acid constituting the nucleic acid complex of the present invention may be any double-stranded nucleic acid as long as it is a polymer obtained by polymerizing a nucleotide or a molecule having a function equivalent to the nucleotide.
- a polymer include RNA that is a polymer of ribonucleotides, DNA that is a polymer of deoxyribonucleotides, a chimeric nucleic acid composed of RNA and DNA, and at least one nucleotide of these nucleic acids is equivalent to the nucleotide.
- a derivative containing at least one molecule having a function equivalent to a nucleotide in these nucleic acids is also included in the double-stranded nucleic acid as a drug used in the present invention.
- Uracil (U) can be uniquely read as thymine (T).
- nucleotide derivatives examples include nucleotide derivatives.
- the nucleotide derivative may be any molecule as long as it is a molecule in which a nucleotide is modified.However, compared with RNA or DNA, for example, in order to improve or stabilize nuclease resistance, the nucleotide derivative has an affinity with a complementary strand nucleic acid.
- a molecule in which a ribonucleotide or deoxyribonucleotide is modified is preferably used.
- modified nucleotides include sugar-modified nucleotides, phosphodiester bond-modified nucleotides, base-modified nucleotides, and nucleotides in which at least one of the sugar moiety, phosphodiester bond, and base is modified.
- the sugar moiety-modified nucleotide may be any one as long as it is modified or substituted with any substituent, or with any atom, with respect to part or all of the chemical structure of the sugar of the nucleotide.
- '-Modified nucleotides are preferably used.
- the 2'-modified nucleotides such as 2'-OH group of the ribose is H, OR, R, R'OR, SH, SR, NH 2, NHR, NR 2, N 3, CN, F, Cl, Br and Substituted with a substituent selected from the group consisting of I (R is alkyl or aryl, preferably alkyl having 1 to 6 carbons, R'is alkylene, preferably alkylene having 1 to 6 carbons) It is a nucleotide, more preferably a nucleotide in which the 2'-OH group is substituted with H, F or a methoxy group, and further preferably a nucleotide in which the 2'-OH group is substituted with an F or a methoxy group.
- the 2'-OH group is a 2-(methoxy)ethoxy group, a 3-aminopropoxy group, a 2-[(N,N-dimethylamino)oxy]ethoxy group, a 3-(N,N-dimethylamino)propoxy group, a 2- A substituent selected from the group consisting of [2-(N,N-dimethylamino)ethoxy]ethoxy group, 2-(methylamino)-2-oxoethoxy group, 2-(N-methylcarbamoyl)etoxy group and 2-cyanoetoxy group. Substituted nucleotides and the like are also included.
- the 2'-modified nucleotide is contained in the double-stranded nucleic acid region in an amount of preferably 50 to 100%, more preferably 70 to 100%, even more preferably 90 to 100%. ..
- the 2′-modified nucleotide is preferably contained in an amount of 20 to 100%, more preferably 40 to 100%, still more preferably 60% to 100% with respect to the nucleotide of the sense strand.
- the 2'-modified nucleotide is preferably contained in 20 to 100%, more preferably 40 to 100%, and even more preferably 60 to 100% with respect to the nucleotide of the antisense strand.
- any nucleotide can be used as long as it modifies or substitutes a part or all of the chemical structure of the phosphoric acid diester bond of the nucleotide with an arbitrary substituent or an atom.
- nucleotide in which a phosphodiester bond is replaced with a phosphorothioate bond a nucleotide in which a phosphodiester bond is replaced with a phosphorodithioate bond, a nucleotide in which a phosphodiester bond is replaced with an alkylphosphonate bond, a phosphate
- examples include nucleotides in which the diester bond is replaced with a phosphoramidate bond.
- the base-modified nucleotide may be any one as long as it is modified or substituted with any substituent, or with any atom, with respect to part or all of the chemical structure of the base of the nucleotide.
- the amino group is substituted with an alkyl group having 1 to 6 carbon atoms, an alkanoyl group having 1 to 6 carbon atoms, an oxo group, a hydroxy group and the like.
- nucleotide derivative at least one of a nucleotide or a sugar moiety, a phosphodiester bond or a base modified, a peptide, protein, sugar, lipid, phospholipid, phenazine, folate, phenanthridine, anthraquinone, acridine, Other chemical substances such as fluorescein, rhodamine, coumarin, and dyes may be added directly or through a linker. Specifically, 5'-polyamine-added nucleotide derivative, cholesterol-added nucleotide derivative, steroid-added nucleotide derivative.
- the nucleotide derivative may form a crosslinked structure with other nucleotides or nucleotide derivatives in the nucleic acid, such as an alkylene structure, a peptide structure, a nucleotide structure, an ether structure, an ester structure, and a combination of at least one of these.
- the term "complementary" means a relationship capable of base pairing between two bases, for example, a mild hydrogen such as a relationship between adenine and thymine or uracil, and a relationship between guanine and cytosine.
- the double-stranded region as a whole has a double helical structure through a bond.
- the term “complementary” as used herein means not only when two nucleotide sequences are completely complementary but also to have 0-30%, 0-20% or 0-10% mismatch bases between the nucleotide sequences. It means that, for example, the antisense strand complementary to APCS mRNA may include substitution of one or more bases in the base sequence that is completely complementary to the partial base sequence of the mRNA. Specifically, the antisense strand has 1 to 8, preferably 1 to 6, 1 to 4, 1 to 3, particularly 2 or 1 mismatch bases with respect to the target sequence of the target gene. You may have.
- the antisense strand when it has a length of 21 bases, it may have 6, 5, 4, 3, 3, or 2 mismatch bases with respect to the target sequence of the target gene. The position of the mismatch may be at the 5'end or 3'end of the respective sequences.
- “complementary” includes a case where one nucleotide sequence is a sequence in which one or more bases are added and/or deleted in a base sequence which is completely complementary to the other nucleotide sequence.
- APCS mRNA and the antisense strand nucleic acid of the present invention have one or two bulge bases in the antisense strand and/or target APCS mRNA region due to addition and/or deletion of bases in the antisense strand. You may.
- the double-stranded nucleic acid as a drug used in the present invention has a nucleic acid containing a nucleotide sequence complementary to a partial nucleotide sequence of APCS mRNA and/or a nucleotide sequence complementary to the nucleotide sequence of the nucleic acid. As long as it contains nucleic acid, it may be composed of any nucleotide or its derivative.
- the double-stranded nucleic acid of the present invention has a nucleic acid containing a base sequence complementary to the target APCS mRNA sequence, and a nucleic acid containing a base sequence complementary to the base sequence of the nucleic acid has at least 11 bases.
- the length of the sequence capable of forming a duplex is usually 11 to 27 bases, preferably 15 to 25 bases, and 17 to 23 bases, as long as it can form a pair of duplexes. Is more preferable and 19 to 23 bases is still more preferable.
- nucleic acid containing a base sequence complementary to the target APCS mRNA sequence is used.
- nucleic acids 1 to 3 bases, preferably 1 to 2 bases, Preferably, one having one base deleted, substituted or added may be used.
- the nucleic acid that suppresses the expression of APCS is a nucleic acid containing a base sequence complementary to the target APCS mRNA sequence, and is a single-stranded nucleic acid that suppresses the expression of APCS, or complementary to the target APCS mRNA sequence.
- a double-stranded nucleic acid that is composed of a nucleic acid containing a specific base sequence and a nucleic acid containing a base sequence complementary to the base sequence of the nucleic acid and that suppresses the expression of APCS is preferably used.
- the single-stranded antisense strand nucleic acid and sense strand nucleic acid that compose the double-stranded nucleic acid are the same or different and usually have 11 to 30 bases, respectively, but they may be the same or different and each have 17 to 27 bases. It is more preferably 17 to 25 bases, still more preferably 19 to 25 bases, still more preferably 21 or 23 bases.
- a double-stranded nucleic acid as a drug used in the present invention, when it has an additional nucleotide or nucleotide derivative that does not form a double strand on the 3'side or 5'side following the double-stranded region, this is an overhang.
- the nucleotide constituting the overhang may be a ribonucleotide, a deoxyribonucleotide or a derivative thereof.
- the double-stranded nucleic acid having an overhang one having an overhang of 1 to 6 bases, usually 1 to 3 bases at the 3'end or 5'end of at least one strand is used.
- examples thereof include those having a protrusion formed of dTdT (dT represents deoxythymidine) or UU (U represents uridine).
- the overhanging portion can be present only in the antisense strand, only in the sense strand, or in both the antisense strand and the sense strand.
- a double-stranded nucleic acid having an overhanging portion in the antisense strand is preferably used.
- the antisense strand is selected from the group described in Table 1-1 to Table 1-13 in the oligonucleotide strand consisting of 17 to 30 nucleotides, which includes the double-stranded region and the overhanging portion following it. Is sufficiently complementary to any of the targeted APCS mRNA sequences.
- the double-stranded nucleic acid of the present invention for example, a nucleic acid molecule that produces a double-stranded nucleic acid by the action of a ribonuclease such as Dicer (WO2005/089287), or does not have a protruding portion at the 3'end or 5'end. It is also possible to use a double-stranded nucleic acid forming a blunt end, a double-stranded nucleic acid having only a sense strand protruding (US2012/0040459), and the like.
- a nucleic acid having the same sequence as the base sequence of the target gene or the base sequence of its complementary strand may be used, but at least one strand of the nucleic acid
- a double-stranded nucleic acid composed of a nucleic acid having 1 to 4 bases deleted at the 5'end or 3'end and a nucleic acid containing a base sequence complementary to the base sequence of the nucleic acid may be used.
- the double-stranded nucleic acid constituting the nucleic acid complex of the present invention is a double-stranded RNA (dsRNA) in which RNA forms a double strand, a double-stranded DNA in which DNA forms a double strand (dsDNA), or It may be a hybrid nucleic acid in which RNA and DNA form a double strand. Alternatively, one or both of the double strands may be a chimeric nucleic acid of DNA and RNA. Double-stranded RNA (dsRNA) is preferred.
- the second nucleotide from the 5'end of the antisense strand of the nucleic acid complex of the present invention is preferably complementary to the second deoxyribonucleotide from the 3'end of the target APCS mRNA sequence, and the 5'end of the antisense strand. It is more preferable that the 2nd to 7th nucleotides from is completely complementary to the 2nd to 7th deoxyribonucleotides from the 3'end of the target APCS mRNA sequence, and the 2nd to 11th nucleotides from the 5'end of the antisense strand are preferable. Is more preferably completely complementary to deoxyribonucleotides 2 to 11 from the 3'end of the target APCS mRNA sequence.
- the 11th nucleotide from the 5'end of the antisense strand in the nucleic acid of the present invention is preferably complementary to the 11th deoxyribonucleotide from the 3'end of the target APCS mRNA sequence, and the 5'end of the antisense strand. More preferably, the 9th to 13th nucleotides are completely complementary to the 9th to 13th deoxyribonucleotides from the 3'end of the target APCS mRNA sequence, and the 7th to 15th nucleotides from the 5'end of the antisense strand are Is more preferably completely complementary to the deoxyribonucleotides 7 to 15 from the 3'end of the target APCS mRNA sequence.
- the antisense strand and sense strand of the nucleic acid complex of the present invention are, for example, in the base sequence (SEQ ID NO: 1) of cDNA (sense strand) of full-length mRNA of human APCS registered as Genbank Accession No. NM_001639.3. It can be designed based on.
- Double-stranded nucleic acid can be designed to interact with a target sequence within the APCS gene sequence.
- the sequence of one strand of the double-stranded nucleic acid is complementary to the above-mentioned target site sequence.
- Double-stranded nucleic acids can be chemically synthesized using the methods described herein.
- RNA may be produced enzymatically or by partial/total organic synthesis, and modified ribonucleotides can be introduced in vitro by enzymatic or organic synthesis.
- each strand is chemically prepared.
- Methods for chemically synthesizing RNA molecules are known in the art [see Nucleic Acids Research, 1998, Volume 32, p.936-948].
- double-stranded nucleic acids can be synthesized by using solid phase oligonucleotide synthesis methods (e.g., Usman et al., U.S. Pat.No. 5,804,683; U.S. Pat.No. 5,831,071; U.S. Pat. 5,998,203; U.S. Patent No.
- Single-stranded nucleic acids are synthesized using the solid-phase phosphoramidite method (Nucleic Acids Research, 1993, Vol. 30, p.2435-2443), deprotected, and Desalted on a NAP-5 column (Amersham Pharmacia Biotech, Piscataway, NJ).
- Oligomer is Amersham Source 15Q column-1.0 cm using a 15 minute linear gradient. Purify using ion exchange high performance liquid chromatography (IE-HPLC) at a height of .25 cm (Amersham Pharmacia Biotech, Piscataway, NJ). The gradient changes from 90:10 buffer A:B to 52:48 buffer A:B, buffer A is 100 mmol/L Tris pH 8.5, and buffer B is 100 mmol/L Tris pH. 8.5 (1 mol/L NaCl). The sample is monitored at 260 nm and the peaks corresponding to the full length oligonucleotide species are collected, pooled, desalted on a NAP-5 column and ly
- each single-stranded nucleic acid is determined by capillary electrophoresis (CE) on Beckman PACE 5000 (Beckman Coulter, Inc., Fullerton, Calif).
- the CE capillary has an inner diameter of 100 ⁇ m and contains ssDNA100RGel (Beckman-Coulter).
- ssDNA100RGel Beckman-Coulter
- about 0.6 nmole of oligonucleotide is injected into the capillary, run in an electric field of 444 V/cm, and detected by UV absorbance at 260 nm.
- Denaturing Tris-Borate-7 mol/L-urea running buffer is purchased from Beckman-Coulter.
- Single stranded nucleic acids are obtained that are at least 90% pure as assessed by CE for use in the experiments described below.
- Compound identity is determined by matrix-assisted laser desorption/ionization-time-of-flight (MALDI-TOF) mass on a Voyager DE.TM.Biospectometry workstation (Applied Biosystems, Foster City, Calif.) according to the manufacturer's recommended protocol. Verified by spectroscopy.
- the relative molecular mass of single-stranded nucleic acids can be obtained within 0.2% of the expected molecular mass.
- Single-stranded nucleic acid is resuspended at 100 ⁇ mol/L concentration in a buffer consisting of 100 mmol/L potassium acetate, 30 mmol/L HEPES, pH 7.5.
- the complementary sense and antisense strands are mixed in equal molar amounts to give a final solution of 50 ⁇ mol/L double stranded nucleic acid.
- the sample is heated to 95°C for 5 minutes and allowed to cool to room temperature before use.
- Double-stranded nucleic acid is stored at -20°C.
- Single-stranded nucleic acids are either lyophilized or stored in nuclease-free water at -80°C.
- An oligonucleotide chain consisting of a sense strand and an antisense strand of the present invention, comprising a double-stranded region of at least 11 base pairs, and having a chain length of 11 to 30 nucleotides in the antisense strand,
- the 5'terminal nucleotides of the antisense strand sequences shown in Table 1-1 to Table 1-13, Table M1-1 to Table M1-3, and Table R-3 to Table R-4 are It may or may not be phosphorylated, but is preferably phosphorylated.
- the double-stranded nucleic acids containing the sense/antisense strand sequences shown in Table 1-1 to Table 1-13 were compared with the condition in which the double-stranded nucleic acid was not added in the measurement of knockdown activity when 1 nM was added.
- the relative expression level of APCS is preferably 0.50 or less, more preferably 0.30 or less, more preferably 0.20 or less, more preferably 0.10 or less. Most preferred.
- the oligonucleotide in the present invention may be a double-stranded nucleic acid containing a 2'-modified nucleotide, preferably those described in Tables M1 to M3, and in the measurement of knockdown activity at the time of addition of 1 nM, a double-stranded nucleic acid It is more preferable that the relative expression level of APCS when the double-stranded nucleic acid is added to the condition where is not added is 0.10 or less.
- the present invention also includes a nucleic acid complex in which the above preferable double-stranded nucleic acid and a known ligand linker are combined.
- Known ligand linkers include, for example, those disclosed in International Publication No. 2009/073809 and International Publication No. 2013/075035.
- the nucleic acid complex of the present invention is preferably the nucleic acid complex (Compound 1-2 to Compound 43-2) described in Table S1, and in the measurement of knockdown activity when 3 nM is added with the nucleic acid complex as the final concentration.
- a nucleic acid complex in which the relative expression level of APCS is 0.50 or less when the nucleic acid complex is added to the negative control to which the nucleic acid complex is not added is more preferable.
- Specific examples of the nucleic acid complex include compounds 1-2, 5-2, 9-2, 10-2, 15-2, 20-2, 33-2 and 35-2.
- the method for producing the nucleic acid complex of the present invention will be described.
- introduction and removal of a protecting group commonly used in synthetic organic chemistry are introduced.
- Method eg, Protective Groups in Organic Synthesis, third edition, TW Greene, John Wiley & Sons Inc.]. (1999) etc.] and the like can be used to produce the target compound.
- the order of reaction steps such as introduction of substituents can be changed as necessary.
- the nucleic acid complex represented by Formula 1 can also be synthesized by solid phase synthesis.
- the nucleic acid complex represented by Formula 1 can be synthesized by referring to a known synthesis method of a linker structure as a nucleic acid complex. Synthesis of the L1-benzene ring unit having S1 as a linker and the L2-benzene ring unit having S2 as a linker in the nucleic acid complex represented by the formula 1 is carried out, for example, by using the nucleic acid complex represented by the formula 2 as an example. explain.
- the L1-benzene ring unit and the L2-benzene ring unit in the nucleic acid complex represented by Formula 2 are linked by P1, P2, P3, P4, P5, and P6, and T1 and T2.
- —CO—O—, —CO—S— or —CO—NH— bond is described in, for example, 4th Edition Experimental Chemistry Course 19 “Synthesis of Organic Compounds I” Maruzen (1992), 4th Edition Experimental Chemistry Course 20. Properly synthesizing by selecting an appropriate raw material for forming the structure represented by the formula 2 with reference to the coupling reaction method described in “Synthesis II of Organic Compound”, Maruzen (1992), etc.
- a partial structure of the L1-benzene ring unit can be produced by sequentially bonding a compound having Q1 as a partial structure and a compound having B1 as a partial structure from a benzene ring.
- a compound having L1 and Q2 as a partial structure is separately synthesized, and a compound having L1 and Q2 as a partial structure is combined with a compound having a partial structure of a benzene ring and an L1-benzene ring unit having Q1 and B1 as a partial structure.
- an L1-benzene ring unit structure can be produced.
- a partial structure of the L2-benzene ring unit can be produced by sequentially bonding a compound having Q3 as a partial structure and a compound having B2 as a partial structure from the benzene ring. ..
- a compound having L2 and Q4 as a partial structure is separately synthesized, and a compound having L2 and Q4 as a partial structure is bonded to a compound having a partial structure of a benzene ring and an L2-benzene ring unit having Q3 and B2 as a partial structure.
- Examples of the compound having Q1 as a partial structure and the compound having Q3 as a partial structure include alkylene having 1 to 10 carbon atoms or --(CH 2 CH 2 O) n --CH 2 CH 2 --, a hydroxyl group and a carboxyl group at both ends. , A compound having an amino group and a thiol group.
- the compound having B1 as a partial structure and the compound having B2 as a partial structure have any of the structures represented by the following formula 2-1 and a hydroxyl group and a carboxyl group are respectively present at the terminal black circles in each structure.
- the compound having B1 as a partial structure and the compound having B2 as a partial structure include glycol, glutamic acid, aspartic acid, lysine, Tris, iminodiacetic acid and 2-amino-1,3-propanediol. , Glutamic acid, aspartic acid, lysine and iminodiacetic acid are preferred.
- B1 and B2 preferably have the following structures.
- the L1-benzene ring unit structure may be produced by synthesizing a compound having L1, Q2 and B1 as a partial structure and then coupling the compound with Q1 and a compound having a benzene ring.
- the L2-benzene ring unit structure may be produced by synthesizing a compound having L2, Q4 and B2 as a partial structure and then coupling it to Q3 and a compound having a benzene ring.
- [L1-T1- (Q2- P3) q2 -] p1 -B1- and substructure is (P2-Q1) q1 a -P1-, [L2-T2- (Q3 -P6) q4 -]
- the partial structure which is p2- B2-(P5-Q3) q3- P2- may be the same or different, but it is preferable that they are the same.
- Examples of the unit corresponding to L1-T1-Q2 of the sugar ligand include L3-T1-Q2-COOH, L3-T1-(Q2-P3) q2-1 -Q2-NH 2 and the like. Specific examples thereof include L3-O-alkylene having 1 to 12 carbon atoms and COOH, L3-having 1 to 12 carbon atoms, alkylene-CO-NH, and having 2 to 12 carbon atoms, and alkylene-NH 2 .
- L3 is not particularly limited as long as it is a sugar ligand derivative that becomes L1 by deprotection.
- the substituent of the sugar ligand is not particularly limited as long as it is a substituent commonly used in the field of sugar chemistry, but an Ac group is preferable.
- the carbon number of the alkylene chain is appropriately increased or decreased, Further, a terminal amino group or a terminal carboxyl group is replaced with -CO-, -NH-, -O-, -S-, -O-CO-, -S-CO-, -NH-CO-, -CO-O-. , -CO-S- or -CO-NH- bond can be used to synthesize the compound.
- the L1 sugar ligand mannose or N-acetylgalactosamine is exemplified in the examples, but other sugar ligands may be used instead.
- the synthesis of the X-benzene ring unit using S3 as a linker in the nucleic acid complex represented by Formula 1 will be described by taking the nucleic acid complex represented by Formula 12 as an example.
- the X-benzene ring unit in the nucleic acid complex represented by Formula 12 has a bond represented by P7 and P8 in addition to the bond of the oligonucleotide.
- —CO—NH— bond is, for example, 4th edition Experimental Chemistry Course 19 “Synthesis of Organic Compounds I” Maruzen (1992), 4th Edition Experimental Chemistry Course 20 “Synthesis of Organic Compounds II”, Maruzen (1992). It can be appropriately synthesized by referring to the method of the coupling reaction described in, and selecting an appropriate raw material for forming the structure represented by the formula 12. Further, a partial structure of the X-benzene ring unit can be produced by sequentially bonding a compound having Q5 as a partial structure and a compound having B3 as a partial structure from a benzene ring.
- a compound having X and Q7 as a partial structure or a compound having X and Q6 as a partial structure is separately synthesized, and a compound having X and Q7 as a partial structure or a compound having X and Q6 as a partial structure is converted into a benzene ring and Q5.
- the X-benzene ring unit structure can be produced by binding the compound having the partial structure of the X-benzene ring unit as a partial structure to construct the B3 portion. Specifically, when a compound having a partial structure of an X-benzene ring unit having a benzene ring and Q5 as a partial structure has an azido group at the terminal, a terminal-bonding functional group as disclosed in the examples will be described.
- the X-benzene ring unit structure can be produced by reacting the base oligonucleotide to cycloadd to form a triazole ring and build the B3 moiety.
- Examples of the compound having Q5 as a partial structure, the compound having Q6 as a partial structure, and the compound having Q7 as a partial structure include alkylene having 1 to 10 carbon atoms or -(CH 2 CH 2 O) n8 -CH 2 CH 2 -.
- the compound which has a hydroxyl group, a carboxyl group, an amino group, and a thiol group at both ends is mentioned.
- the L1-benzene ring unit structure, the L2-benzene ring unit structure, and the X-benzene ring unit structure can be sequentially manufactured, but the L1-benzene ring unit structure and the L2-benzene ring unit structure are synthesized. Then, it is preferable to bond the X-benzene ring unit structure.
- X having an oligonucleotide moiety is preferably introduced into the compound near the final step of sugar ligand complex synthesis.
- R1 and R2 are each independently a hydrogen atom, t-butoxycarbonyl group (Boc group), benzyloxycarbonyl group (Z group), 9-fluorenylmethyloxycarbonyl group (Fmoc group), -CO-R4.
- -CO-B4-[(P9-Q8) q7 -T3-L3] p3 , P9 and T3 each independently do not exist, or are —CO—, —NH—, —O—, —S—, —O—CO—, —S—CO—, —NH—CO—, -CO-O-, -CO-S- or -CO-NH-, Q8 is absent, or a substituted or unsubstituted alkylene having 1 to 12 carbon atoms or —(CH 2 CH 2 O) n1 —CH 2 CH 2 —, and n1 is an integer of 0 to 99;
- B4 is independently a bond or has any structure represented by the following formula 8-1, and the black dots at the ends of each structure represent a carbonyl group or a bond with P9, respectively.
- m7, m8, m9 and m10 are each independently an integer of 0 to 10, Equation 8-1:
- p3 is an integer of 1, 2 or 3, q7 is an integer of 0 to 10, L3 is a sugar ligand, Y is —O—(CH 2 ) m11 —NH— and —NH—CO—(CH 2 ) m12 —NH, m11 and m12 are each independently an integer of 1 to 10, R3 is a hydrogen atom, t-butoxycarbonyl group, benzyloxycarbonyl group, 9-fluorenylmethyloxycarbonyl group, -CO-R4, -CO- (CH 2 CH 2 O) n2 -CH 2 CH 2 -N 3 or -CO-Q9- B5- (Q10-P10) q8 -X1 and n2 is an integer of 0 to 99, P10 does not exist, or —CO—, —NH—, —O—, —S—, —O—CO—, —S—CO—, —NH—CO—, —CO—O—, — CO
- the substitution on the group having a triazole ring is at either the 1-position or 3-position nitrogen atom of the triazole ring.
- q8 is an integer of 0 to 10
- X1 is a hydrogen atom or a solid phase carrier
- R4 is selected from the group consisting of t-butoxycarbonyl group, benzyloxycarbonyl group, amino group substituted or unsubstituted by 9-fluorenylmethyloxycarbonyl group, carboxy group, maleimide group, and aralkyloxycarbonyl group. It is an alkyl group having 2 to 10 carbon atoms, which is substituted with 1 or 2 substituents. )
- R5 and R6 are each independently a hydrogen atom, a t-butoxycarbonyl group, a benzyloxycarbonyl group, a 9-fluorenylmethyloxycarbonyl group, -CO-R4', or -CO-Q11-(P11-Q11.
- P11 and T4 each independently do not exist, or are —CO—, —NH—, —O—, —S—, —O—CO—, —S—CO—, —NH—CO—, -CO-O-, -CO-S- or -CO-NH-, Q11 and Q11′ are absent or substituted or unsubstituted alkylene having 1 to 12 carbon atoms or —(CH 2 CH 2 O) n4 —CH 2 CH 2 —, and n4 is an integer from 0 to 99.
- L4 is a sugar ligand
- Y′ is —O—(CH 2 ) m11′ —NH— and —NH—CO—(CH 2 ) m12′ —NH
- m11′ and m12′ are each independently an integer of 1 to 10.
- R3′ is a hydrogen atom, t-butoxycarbonyl group, benzyloxycarbonyl group, 9-fluorenylmethyloxycarbonyl group, —CO—R4′, —CO—(CH 2 CH 2 O) n2′ —CH 2 CH 2 —N 3 or —CO-Q9′-B5′-(Q10′-P10′) q8′ —X1′, and n2′ is an integer of 0 to 99, P10′ does not exist or is —CO—, —NH—, —O—, —S—, —O—CO—, —S—CO—, —NH—CO—, —CO—O—, -CO-S- or -CO-NH-, Q9′ and Q10′ are each independently absent, or a substituted or unsubstituted alkylene having 1 to 12 carbons or —(CH 2 CH 2 O) n3′ —CH 2 CH 2 —, n3′
- the substitution on the group having a triazole ring is at either the 1-position nitrogen atom or the 3-position nitrogen atom of the triazole ring.
- q8′ is an integer of 0 to 10
- X1′ is a hydrogen atom or a solid phase carrier
- R4′ is selected from the group consisting of t-butoxycarbonyl group, benzyloxycarbonyl group, amino group substituted or unsubstituted with 9-fluorenylmethyloxycarbonyl group, carboxy group, maleimide group, and aralkyloxycarbonyl group. Is an alkyl group having 2 to 10 carbon atoms, which is substituted with 1 or 2 substituents. )
- R7 and R8 are each independently a hydroxy group, a t-butoxy group, a benzyloxy group, -NH-R10, or -NH-Q12-(P12-Q12') q10 -T4 -L4, P12 and T4 each independently do not exist, or are —CO—, —NH—, —O—, —S—, —O—CO—, —S—CO—, —NH—CO—, -CO-O-, -CO-S- or -CO-NH-, Q12 and Q12′ are absent or substituted or unsubstituted alkylene having 1 to 12 carbon atoms or —(CH 2 CH 2 O)n 2 —CH 2 CH 2 —, and n 2 is an integer from 0 to 99.
- L4 is a sugar ligand
- Y2 is -O-(CH 2 )m9-NH- and -NH-CO-(CH 2 )m10-NH
- m9 and m10 are each independently an integer of 1 to 10
- q10 is an integer of 0 to 10
- R9 is hydrogen, t-butoxycarbonyl group, benzyloxycarbonyl group, 9-fluorenylmethyloxycarbonyl group, -CO-R10, -CO- (CH 2 CH 2 O) n6 -CH 2 CH 2 -N 3 or -CO-Q13-B6-(Q14-P13) q11 -X2, n6 is an integer of 0 to 99, P13 does not exist, or —CO—, —NH—, —O—, —S—, —O—CO—, —S—CO—, —NH—CO—, —CO—O—, — CO-S- or -CO-NH-,
- the substitution on the group having a triazole ring is at either the 1-position nitrogen atom or the 3-position nitrogen atom of the triazole ring.
- q11 is an integer of 0 to 10
- X2 is a hydrogen atom or a solid phase carrier
- R10 is selected from the group consisting of t-butoxycarbonyl group, benzyloxycarbonyl group, amino group substituted or unsubstituted by 9-fluorenylmethyloxycarbonyl group, carboxy group, maleimide group, and aralkyloxycarbonyl group. It is an alkyl group having 2 to 10 carbon atoms, which is substituted with 1 or 2 substituents. )
- the nucleic acid derivative in the present invention can be exemplified by a method for producing a compound having a partial structure represented by the formula (I′).
- P1 is a protecting group that can be deprotected by a base such as Fmoc
- DMTr represents a p,p′-dimethoxytrityl group
- R represents a sugar ligand-tether unit
- R′ represents a group in R.
- Each hydroxyl group of the sugar ligand represents a group protected by a protecting group that can be deprotected with a base such as an acetyl group
- Polymer represents a solid phase carrier
- Q′ represents —CO—.
- Process 1 Compound (IB) is obtained by heating compound (IA) and p,p′-dimethoxytrityl chloride in a solvent such as pyridine in the presence of a cosolvent, if necessary, at a temperature between 0° C. and 100° C. It can be produced by reacting for 5 minutes to 100 hours.
- a cosolvent include methanol, ethanol, dichloromethane, chloroform, 1,2-dichloroethane, toluene, ethyl acetate, acetonitrile, diethyl ether, tetrahydrofuran, 1,2-dimethoxyethane, dioxane, N,N-dimethylformamide (DMF). , N,N-dimethylacetamide, N-methylpyrrolidone, pyridine, water and the like, and these may be used alone or in combination.
- Process 2 Compound (IC) is obtained by reacting Compound (IB) without solvent or in the presence of 1 to 1000 equivalents of a secondary amine at a temperature between room temperature and 200° C. for 5 minutes to 100 hours.
- the solvent include methanol, ethanol, dichloromethane, chloroform, 1,2-dichloroethane, toluene, ethyl acetate, acetonitrile, diethyl ether, tetrahydrofuran, 1,2-dimethoxyethane, dioxane, N,N-dimethylformamide (DMF), Examples thereof include N,N-dimethylacetamide, N-methylpyrrolidone, pyridine and water, which may be used alone or in a mixture.
- secondary amines include diethylamine and piperidine.
- the compound (1-E) is obtained by mixing the compound (IC) and the compound (ID) with or without a solvent in an amount of 1 to 30 equivalents of a base, a condensing agent and, if necessary, 0.01 to 30 equivalents. It can be produced by reacting for 5 minutes to 100 hours at a temperature between room temperature and 200° C. in the presence of the additive.
- a base include cesium carbonate, potassium carbonate, potassium hydroxide, sodium hydroxide, sodium methoxide, potassium tert-butoxide, triethylamine, diisopropylethylamine, N-methylmorpholine, pyridine, 1,8-diazabicyclo[5.4.
- DBU 1,3-dicyclohexanecarbodiimide
- EDC 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride
- carbonyldiimidazole benzotriazol-1-yloxytris (Dimethylamino)phosphonium hexafluforophosphate, (benzotriazol-1-yloxy)tripyrrolidinophosphonium hexafluorophosphate, O-(7-azabenzotriazol-1-yl)-N,N,N′,N '-Tetramethyluronium hexafluorophosphate (HATU), O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate (HATU), O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluor
- additive examples include 1-hydroxybenzotriazole (HOBt), 4-dimethylaminopyridine (DMAP) and the like.
- HOBt 1-hydroxybenzotriazole
- DMAP 4-dimethylaminopyridine
- ID can be obtained by a known method (for example, see Journal of American Chemical Society, 136, 16958, (2014)) or a method analogous thereto.
- Process 4 Compound (IF) is obtained by reacting compound (IE) with succinic anhydride in a solvent in the presence of 1 to 30 equivalents of a base at a temperature between room temperature and 200° C. for 5 minutes to 100 hours. It can be manufactured.
- Examples of the solvent include those exemplified in step 2.
- Examples of the base include those exemplified in step 3.
- Compound (IG) comprises compound (IF) and a terminal-aminated solid phase carrier in the presence or absence of a solvent, in an amount of 1 to 30 equivalents of a base, a condensing agent and, if necessary, 0. After reacting in the presence of 01 to 30 equivalents of an additive at a temperature between room temperature and 200° C. for 5 minutes to 100 hours, an acetic anhydride/pyridine solution and a temperature between room temperature and 200° C. for 5 minutes to 100 hours It can be produced by reacting.
- the solvent those exemplified in Step 2 can be mentioned.
- the base the condensing agent and the additive, those exemplified in step 3 can be mentioned.
- the aminated solid phase carrier include long-chain alkylamine porous glass (LCAA-CPG) and the like, which can be obtained as commercial products.
- the nucleic acid complex having the sugar ligand-tether-bluncher unit represented by the formula (I′) is obtained by using the compound (IG) and extending the corresponding nucleotide chain by a known oligonucleotide chemical synthesis method, It can be produced by elimination from the solid phase, deprotection of the protective group and purification.
- oligonucleotide chemical synthesis methods include the phosphoramidite method, phosphorothioate method, phosphotriester method, CEM method (see Nucleic Acids Research, 35, 3287 (2007)) and the like.
- ABI 3900 high It can be synthesized by a throughput nucleic acid synthesizer (manufactured by Applied Biosystems).
- the elimination and deprotection from the solid phase can be performed by chemical treatment of the oligonucleotide, followed by treatment with a base in a solvent or no solvent at a temperature between ⁇ 80° C. and 200° C. for 10 seconds to 72 hours. it can.
- Examples of the base include ammonia, methylamine, dimethylamine, ethylamine, diethylamine, isopropylamine, diisopropylamine, piperidine, triethylamine, ethylenediamine, 1,8-diazabicyclo[5.4.0]-7-undecene (DBU), carbonic acid.
- Examples thereof include potassium.
- Examples of the solvent include water, methanol, ethanol, THF and the like.
- oligonucleotide Purification of the oligonucleotide is possible by a C18 reverse phase column or an anion exchange column, preferably by combining the above two methods. It is desirable that the purity of the nucleic acid complex after purification is 90% or more, preferably 95% or more.
- the compound (ID) can be divided into two units, and the compound (IC) can be condensed in two steps.
- the compound in step 3 Ethyl ester of the compound obtained by condensing (IC) with CH 3 CH 2 —O—CO—Q4′-CO—OH (Q4′ is as defined above) in the same manner as in Step 3.
- the method for producing the nucleic acid derivative of the present invention can be exemplified as a method for producing a compound having a partial structure represented by formula (II′).
- Compound (II-A) is prepared by reacting compound (IA), t-butyldimethylsilyl chloride and dimethylaminopyridine in a solvent such as N,N-dimethylformamide (DMF), preferably in the presence of 2 equivalents of a base. It can be produced by reacting at a temperature between 0° C. and 100° C. for 5 minutes to 100 hours. Examples of the base include those exemplified in Step 3 of Production Method 1.
- Process 8 Compound (II-B) can be produced using compound (II-A) under the same conditions as in Step 1 of Production method 1.
- Process 9 Compound (II-C) is produced by reacting compound (II-B) with n-tetrabutylammonium fluoride (TBAF) in a solvent at a temperature between room temperature and 200° C. for 5 minutes to 100 hours. can do.
- TBAF n-tetrabutylammonium fluoride
- Process 10 Compound (II-D) can be produced using compound (II-C) under the same conditions as in Step 2 of Production method 1.
- Process 11 Compound (II-E) can be produced using compound (II-D) and compound (ID) under the same conditions as in production method 1, step 3.
- Steps 12-14 Compound (II′) can be produced using compound (II-E) under the same conditions as in Step 4 to Step 6 of Production Method 1.
- the compound (ID) can be divided into two units, and the compound (II-C) can be condensed in two steps.
- RQ′ is —NH—CO—Q4′—CO— (Q4′ is a substituted or unsubstituted alkylene having 1 to 12 carbon atoms)
- the compound (II- C) and CH 3 CH 2 —O—CO—Q4′—CO—OH are condensed in the same manner as in Step 11, and the ethyl ester of the resulting compound is converted into ethanol or ethanol.
- the desired compound can be obtained by hydrolyzing with a base such as lithium hydroxide in a solvent such as water and then further condensing with R'-NH 2 (R' is as defined above).
- a base such as lithium hydroxide
- R' is as defined above
- CH 3 CH 2 —O—CO—Q4′—CO—OH Q4′ is as defined above
- R′—NH 2 R′ is as defined above
- the nucleic acid derivative according to the present invention can be exemplified by a method for producing a compound having a partial structure represented by the formula (III′).
- the compound (III′) can be produced using the compound (III-A) under the same conditions as in Step 1 to Step 6 of Production Method 1.
- the compound (III-A) can be obtained as a commercial product.
- Process 15 Compound (III-B) can be produced using compound (III-A) under the same conditions as in Production method 1, step 1.
- Compound (III-A) can be purchased as a commercial product.
- Process 16 Compound (III-C) can be produced using compound (III-B) under the same conditions as in Step 2 of Production method 1.
- Process 17 Compound (III-E) can be produced using compound (III-C) under the same conditions as in Production method 1, step 3.
- Steps 18-20 Compound (III′) can be produced using compound (III-E) under the same conditions as in Step 4 to Step 6 of Production Method 1.
- the compound (ID) can be divided into two units, which can be divided into two steps and condensed with the compound (III-C).
- the compound (III- C) and CH 3 CH 2 —O—CO—Q4′—CO—OH are condensed in the same manner as in Step 17, and the ethyl ester of the obtained compound is converted into ethanol or ethanol.
- the desired compound can be obtained by hydrolyzing with a base such as lithium hydroxide in a solvent such as water and then further condensing with R'-NH 2 (R' is as defined above).
- a base such as lithium hydroxide
- R' is as defined above
- CH 3 CH 2 —O—CO—Q4′—CO—OH Q4′ is as defined above
- R′—NH 2 R′ is as defined above
- the nucleic acid derivative according to the present invention can be exemplified by a method for producing a compound having a partial structure represented by formula (IV′).
- the compound (IV′) can be produced by using the compound (IV-A) under the same conditions as in step 1 to step 6 of production method 1.
- the compound (IV-A) can be obtained as a commercial product.
- the compound (ID) can be divided into two units, which can be divided into two steps and condensed with the compound (IV-C).
- R′-Q′ is —NH—CO—Q4′—CO—
- Q4′ is a substituted or unsubstituted alkylene having 1 to 12 carbon atoms
- the compound in step 23 (IV-C) and CH 3 CH 2 —O—CO-Q4′-CO—OH (Q4′ has the same meaning as above) are condensed in the same manner as in Step 23 to obtain an ethyl ester of the compound.
- the nucleic acid derivative according to the present invention can be exemplified by a method for producing a compound having a partial structure represented by the formula (V′).
- the compound (V′) can be produced using the compound (IV-A) under the same conditions as in step 1 to step 7 of production method 2.
- the compound (IV-A) can be obtained as a commercial product.
- the compound (ID) can be divided into two units, and the compound (VD) can be condensed in two steps.
- the compound in step 31 (VD) and CH 3 CH 2 —O—CO—Q4′-CO—OH (Q4′ is as defined above) are condensed in the same manner as in Step 31, and the ethyl ester of the compound obtained is obtained.
- Manufacturing method 6 The method for producing the nucleic acid complex of the present invention, in which the sugar ligand-tether-bruncher unit is bound to the 5'end of the oligonucleotide, is illustrated below.
- Step 35 Compound (IH) is a compound (II-E) and 2-cyanoethyl-N,N,N',N'-tetraisopropylphosphodiamidite in the absence or in the presence of a base and a reaction accelerator. It can be produced by reacting at a temperature between room temperature and 200° C. for 5 minutes to 100 hours.
- the solvent include those exemplified in Step 2 of Production Method 1.
- the base include those exemplified in step 3 of production method 1.
- reaction accelerator examples include 1H-tetrazole, 4,5-dicyanoimidazole, 5-ethylthiotetrazole, 5-benzylthiotetrazole and the like, which can be purchased as a commercial product.
- Step 36 After extending the oligonucleotide chain and finally using the compound (IH) to modify the 5'end of the oligonucleotide with a sugar ligand-tether-bluncher unit, deprotection of the leaving protecting group from the solid phase and Compound (I′′) can be produced by carrying out purification.
- the elimination from the solid phase, the deprotection of the protective group, and the purification can be carried out in the same manner as in Step 7 of Production method 1.
- Manufacturing method 7 The method for producing the nucleic acid complex of the present invention, in which the sugar ligand-tether-bruncher unit is bound to the 5'end of the oligonucleotide, is illustrated below.
- Manufacturing method 8 The method for producing the nucleic acid complex of the present invention, in which the sugar ligand-tether-bruncher unit is bound to the 5'end of the oligonucleotide, is illustrated below.
- Manufacturing method 9 The method for producing the nucleic acid complex of the present invention, in which the sugar ligand-tether-bruncher unit is bound to the 5'end of the oligonucleotide, is illustrated below.
- Manufacturing method 10 The method for producing the nucleic acid complex of the present invention, in which the sugar ligand-tether-bruncher unit is bound to the 5'end of the oligonucleotide, is illustrated below.
- a sense strand having a sugar ligand-tether-bluncher unit at the 3'or 5'end of the sense strand constituting the double-stranded nucleic acid and an antisense strand constituting the double-stranded nucleic acid are mixed with water or an appropriate buffer.
- a nucleic acid complex having a double-stranded nucleic acid can be obtained by dissolving each in a liquid and mixing.
- the buffer solution include acetate buffer solution, Tris buffer solution, citrate buffer solution, phosphate buffer solution, water and the like, and these may be used alone or in combination.
- the antisense strand is preferably 0.5 to 2 equivalents, more preferably 0.9 to 1.1 equivalents, and 0.95 equivalent to 1 equivalent to 1 equivalent of the sense strand. 0.05 equivalent is more preferable.
- the sense strand and the antisense strand may be mixed and then appropriately annealed.
- the annealing treatment is performed by heating the mixture of the sense strand and the antisense strand to preferably 50 to 100° C., more preferably 60 to 100° C., further preferably 80 to 100° C., and then gradually cooling to room temperature.
- the antisense strand can be obtained according to the above-mentioned known oligonucleotide synthesis method.
- Manufacturing method 12 The method for producing the nucleic acid derivative of the present invention can be exemplified as a method for producing a compound having a partial structure represented by formula (VI′).
- TBS represents a t-butyldimethylsilyl group
- R0 and Rx are the same or different and each represents a hydrogen atom.
- W is C1 to C10 alkylene, C3 to C8 cycloalkylene, or is combined with R0 to form a C4 to C8 nitrogen-containing heterocycle. It may be formed.
- Step 45 Compound (VI-B) can be produced using compound (VI-A) under the same conditions as in Step 1 of Production method 1.
- Compound (VI-A) can be obtained as a commercially available product, or by a known method (eg, Bioorganic and Medicinal Chemistry Letters, Vol. 11, pp. 383-386) or a method analogous thereto.
- Step 46 Compound (VI-C) can be produced using compound (VI-B) under the same conditions as in Production method 1, step 2.
- Step 47 Compound (VI-D) can be produced using compound (VI-C) under the same conditions as in Production method 1, step 3.
- Process 48 Compound (VI-E) can be produced using compound (VI-D) under the same conditions as in Production method 1, step 2.
- Process 49 Compound (VI-G) can be produced using compound (VI-E) and compound (VI-F) under the same conditions as in Step 3 of Production method 1.
- Process 50 Compound (VI-H) can be produced using compound (VI-G) under the same conditions as in production method 2, step 9.
- Steps 51-53 Compound (VI′) can be produced using compound (VI-H), compound (VI-I) and compound (VI-J) under the same conditions as in Steps 4 to 6 of Production Method 1.
- Steps 45 to 53 can also be performed by a known method (for example, the method described in WO 2015/105083) or a method similar thereto.
- the compound (VI-F) can be obtained by a known method (for example, the method described in Journal of American Chemical Society, Volume 136, 16958 tribute, 2014) or a method analogous thereto. be able to.
- the sugar ligand-tether unit in which P1 and P4 in Formula 2 are —NH—CO—, —O—CO— or —S—CO— can be produced by the following method.
- Q1, Q2, Q3, Q4, Q5, P2, P3, P5, P6, P7, T1, T2, L1, L2, q1, q2, q3 and q4 have the same meanings as above, respectively, and q2′ is represents an integer less than 1 by q2, q4′ represents an integer less than 1 by q4, P1′ and P4′ each independently represent —NH—CO—, —O—CO— or —S—CO—.
- B1′ and B2′ are any of the structures of the following formulas.
- PG1, PG2, PG3, PG4, PG5, PG6 and PG7 each represent a suitable protecting group.
- n1, m2, m3 or m4 each independently represents an integer of 0 to 10.
- the compound (VII-C) is prepared by adding the compound (VII-A) and the compound (VII-B) to a solvent such as tetrohydrofuran with a support for triphenylphosphine polymer, and diisopropylazodicarboxylate toluene under ice cooling. It can be produced by reacting a solution.
- a solvent such as tetrohydrofuran with a support for triphenylphosphine polymer, and diisopropylazodicarboxylate toluene under ice cooling.
- a solvent such as tetrohydrofuran with a support for triphenylphosphine polymer, and diisopropylazodicarboxylate toluene under ice cooling. It can be produced by reacting a solution.
- the solvent those exemplified in Step 2 of Production Step 1 can be mentioned.
- Compound (VII-A) can be obtained as a commercially available product.
- Process 55 Compound (VII-D) can be produced by reacting compound (VII-C) in a solvent such as methanol under ice cooling in the presence of a base.
- a solvent such as methanol under ice cooling
- a base examples of the base include those exemplified in Step 3 of Production Step 1.
- Process 56 Compound (VII-F) can be produced using compound (VII-D) and compound (VII-E) under the same conditions as in Production Process 1, Step 3.
- Step 57 Compound (VII-H) can be produced using Compound (VII-F) and Compound (VII-G) under the same conditions as in Production Process 1, Step 3.
- Process 58 Compound (VII-J) can be produced using compound (VII-H) and compound (VII-I) under the same conditions as in production step 1, step 3. Further, the compound (VII-J) having a desired q1 value can be produced by repeating the following step DP1 and step 58.
- Step 59 Compound (VII-L) can be produced using compound (VII-J) and compound (VII-K) under the same conditions as in production step 1, step 3.
- Process 60 Compound (VII-N) can be produced using compound (VII-L) and compound (VII-M) under the same conditions as in production step 1, step 3.
- Steps 61-63 Compound (VII′) can be produced using compound (VII-O), compound (VII-P) and compound (VII-Q) under the same conditions as in production step 1, step 3. Further, the compound (VII') having a desired q3 value can be produced by repeating the following step DP1 and step 61.
- Manufacturing method 14 The unit in which P7 is —O— in Formula 4 can be produced by the following method.
- q5′′ represents an integer smaller than q5 by 2 and q5′ represents an integer smaller than q5 by 1 and Z2 represents H, OH, NH 2 or SH.
- PG8 and PG9 each represent a suitable protecting group, LC represents a sugar ligand-tether unit, and E represents a carboxylic acid or maleimide.
- Process 64 Compound (VIII-C) can be produced using compound (VIII-A) and compound (VIII-B) under the same conditions as in Step 3 of Production step 1. Further, by repeating the following Step DP2 and Step 64, the compound (VIII-C) having a desired q5′′ value can be produced.
- the compound (VIII-B) is commercially available, or “Experimental Chemistry Course, Fourth Edition, Organic Synthesis, p. 258, Maruzen (1992)”, “March's Advanced Organic Chemistry: Reactions, Mechanisms, and Structure, 7 th”. It can be obtained by combining the methods described in "Edition” or by a method similar thereto.
- Process 65 Compound (VIII′) can be produced using compound (VIII-C) and compound (VIII-D) under the same conditions as in production step 1, step 3.
- the compound (VIII-D) is commercially available or "Experimental Chemistry Course, 4th Edition, Organic Synthesis, p. 258, Maruzen (1992)", "March's Advanced Organic Chemistry: Reactions, Mechanisms, and Structure, 7 th". It can be obtained by combining the methods described in "Edition” or by a method similar thereto.
- the sugar ligand-tether unit in which P1 and P4 in formula 2 are -O- can be produced by the following method.
- n1, m2, m3 and m4 are as defined above.
- Step 66 The compound (IX-C) is prepared by dissolving the compound (IX-A) and the compound (IX-B) in a solvent such as N,N′-dimethylformamide and adding a base such as potassium hydrogen carbonate to room temperature to 200° C. It can be produced by reacting for 5 minutes to 100 hours.
- a solvent such as N,N′-dimethylformamide
- a base such as potassium hydrogen carbonate
- Step 67 As the compound (IX-E), the compound (IX-C) and the compound (IX-D) are dissolved in a solvent such as N,N′-dimethylformamide and the like, and a base such as potassium hydrogencarbonate is added to the mixture at room temperature to 200° C. It can be produced by reacting for 5 minutes to 100 hours.
- a solvent such as N,N′-dimethylformamide and the like
- a base such as potassium hydrogencarbonate
- the solvent those exemplified in Step 2 of Production Step 1 can be mentioned.
- Examples of the base include those exemplified in Step 3 of Production Step 1.
- Compound (IX-A) can be obtained as a commercially available product.
- Process 68 Compound (IX-G) can be produced using compound (IX-E) and compound (IX-F) under the same conditions as in production step 1, step 3.
- Process 69 Compound (IX-I) can be produced using compound (IX-G) and compound (IX-H) under the same conditions as in production step 1, step 3. Further, by repeating the process DP and the process 69, the compound (VII-J) having a desired q1 value can be produced.
- Step 70 Compound (IX-K) can be produced using compound (IX-I) and compound (IX-J) under the same conditions as in production step 1, step 3.
- Step 71 Compound (IX-M) can be produced using compound (IX-K) and compound (IX-L) under the same conditions as in production step 1, step 3.
- Steps 72-74 Compound (IX′) can be produced by using Compound (IX-M), Compound (IX-N), Compound (IX-O) and Compound (IX-P) under the same conditions as in Production Process 1, Step 3. You can Further, by repeating the following step DP3 and step 72, the compound (IX′) having a desired q3 value can be produced.
- Compound (IX'-B), Compound (IX'-D), Compound (IX'-F), Compound (IX'-H), Compound (IX'-J), Compound (IX'-L), Compound ( IX′-N), compound (IX′-O) and compound (IX′-P) are commercially available products, or “Experimental Chemistry Course 4th Edition Organic Synthesis, p. 258, Maruzen (1992)”, “March. It can be obtained by a combination of the methods described in “s Advanced Organic Chemistry: Reactions, Mechanisms, and Structure, 7 th Edition” or a method according thereto.
- Manufacturing method 16 The following method can also be used as a method for producing the nucleic acid complex of Formulas 1 to 8.
- Compound (XB) can be produced by reacting compound (XIII′′) with compound (XA) in a solvent at 0° C. to 100° C. for 10 seconds to 100 hours.
- the solvent include water, phosphate buffer, sodium acetate buffer, dimethyl sulfoxide and the like, and these may be used alone or in a mixture.
- Compound (VIII′) can be obtained by using the production method 14.
- the compound (XA) can be prepared by a known method (eg, Bioconjugate Chemistry, Volume 21, pages 187-202, 2010, or Current Protocols in Nucleic Acid Chemistry (Current Protocols). in Nucleic Acid Chemistry), 2010, September; CHAPTER: Unit 4.41) or a method similar thereto.
- Step 76 The compound (X') is produced by using the compound (XB) for 5 minutes to 100 hours at a temperature between room temperature and 200°C under conditions of pH 8 or more such as aqueous sodium carbonate solution or ammonia water. You can
- Manufacturing method 17 The following method can also be used as a method for producing the nucleic acid complex of Formulas 1 to 8.
- Step 77 The compound (XI-A) can be prepared by a known method (for example, the method described in Bioconjugate Chemistry, Volume 26, pp. 1451-1455, 2015) using the compound (VIII′′), or It can be obtained by a similar method.
- Compound (VIII′′′) can be obtained by using the production method 14.
- Step 78 The compound (XI′) was prepared using the compound (XI-A) and the compound (XI-B) by a known method (for example, Bioconjugate Chemistry, Vol. 26, pp. 1451-1455, 2015). Described method) or a method similar thereto.
- Compound (XI-B) can be obtained by a method according to Bioconjugate Chemistry, Vol. 26, pp. 1451-1455, 2015) or a method similar thereto.
- the compound (XI′) can be prepared by a known method (see, for example, Bioconjugate Chemistry, Vol. 22, pp. 1723-1728, 2011) or a method similar thereto. It can be obtained directly from (XI-A).
- the nucleic acid complex in the present specification can also be obtained as a salt such as an acid addition salt, a metal salt, an ammonium salt, an organic amine addition salt, an amino acid addition salt and the like.
- Examples of the acid addition salt include inorganic acid salts such as hydrochloride, sulfate and phosphate, and organic acid salts such as acetate, maleate, fumarate, citrate and methanesulfonate.
- Examples of the metal salt include alkali metal salts such as sodium salt and potassium salt, alkaline earth metal salts such as magnesium salt and calcium salt, aluminum salt and zinc salt, and examples of the ammonium salt include ammonium and tetramethyl. Examples thereof include salts such as ammonium, examples of organic amine addition salts include addition salts such as morpholine and piperidine, and examples of amino acid addition salts include addition salts such as lysine, glycine and phenylalanine.
- a salt of the nucleic acid complex of the present specification when it is desired to prepare a salt of the nucleic acid complex of the present specification, when the complex is obtained in the form of a desired salt, it may be purified as it is, and when it is obtained in a free form, the complex may be obtained. May be dissolved or suspended in an appropriate solvent, a corresponding acid or base may be added, and isolation/purification may be performed. When the counter ion forming the complex salt is converted into a different counter ion, the complex salt is dissolved or suspended in an appropriate solvent, and then the acid, base and/or salt (sodium chloride, chloride It may be isolated and purified by adding several equivalents to a large excess amount of an inorganic salt such as ammonium).
- an inorganic salt such as ammonium
- nucleic acid complexes in the present specification may have geometrical isomers, stereoisomers such as optical isomers, tautomers, etc., but also all possible isomers and mixtures thereof. Included in the present invention.
- the nucleic acid complex of the present specification may exist in the form of an adduct with water or various solvents, and these adducts are also included in the nucleic acid complex of the present invention.
- the nucleic acid complex of the present invention also includes a molecule in which some or all of the atoms in the molecule are replaced with atoms (isotopes) having different mass numbers (for example, deuterium atoms).
- the pharmaceutical composition of the present invention comprises a nucleic acid complex represented by Formula 1.
- the nucleic acid complex of the present invention has the L1 and L2 sugar ligands, and thus is recognized by the target cell and introduced into the cell.
- the nucleic acid complex of the present invention can be administered to mammals to suppress it by reducing or stopping the expression of the target gene in vivo, and can be used for the treatment of diseases related to the target gene.
- it is desirable to use the most effective administration route for treatment as the administration route although it is not particularly limited, for example, intravenous Administration, subcutaneous administration, intramuscular administration and the like can be mentioned, with subcutaneous administration being preferred.
- the daily dose converted into double-stranded oligonucleotide may be 0.1 ⁇ g to 1000 mg. More preferably, the dose is 1 to 100 mg.
- Formulations suitable for intravenous or intramuscular administration include, for example, injections, and the prepared liquids can be used as they are, for example, in the form of injections and the like, but from the liquids, for example, filtration, centrifugation, etc. It can be used after removing the solvent by lyophilizing the solution, and/or lyophilizing the solution containing an excipient such as mannitol, lactose, trehalose, maltose or glycine.
- an excipient such as mannitol, lactose, trehalose, maltose or glycine.
- an injectable solution it is preferable to prepare an injectable solution by mixing, for example, water, an acid, an alkali, various buffer solutions, physiological saline or an amino acid infusion, with the composition obtained by removing the solution or solvent or freeze-drying. It is also possible to prepare an injection by adding an antioxidant such as citric acid, ascorbic acid, cysteine or EDTA, or an isotonicity agent such as glycerin, glucose or sodium chloride. It is also possible to freeze-preserve by adding a cryopreservative such as glycerin.
- the double-stranded nucleic acid in the composition of the present invention can be introduced into cells by administering the composition of the present invention to mammalian cells.
- the method of introducing the nucleic acid complex of the present invention into a mammalian cell in vivo may be carried out according to a known transfection procedure that can be performed in vivo.
- intravenously administering the composition of the present invention to mammals including humans it can be delivered to the liver and the double-stranded nucleic acid in the composition of the present invention can be introduced into the liver or hepatocytes.
- amyloid-related diseases include diseases caused by disorders mediated by amyloid fibrils including APCS. Specifically, abnormal insoluble protein fibrils known as amyloid fibrils are deposited in tissues and cause organ damage. It is a disease caused.
- amyloid-related diseases more specifically, systemic amyloidosis, AL amyloidosis, AA amyloidosis, ATTR amyloidosis, dialysis amyloidosis, heart failure with amyloid deposition, nephropathy with amyloid deposition, senile amyloidosis, carpal tunnel syndrome, etc., Alzheimer's dementia, which is localized amyloidosis, cerebral amyloid angiopathy, type II diabetes and the like can be mentioned.
- the administration target of the nucleic acid complex of the present invention is a mammal, and preferably a human.
- nucleic acid complex of the present invention When the nucleic acid complex of the present invention is used as a therapeutic agent or prophylactic agent for amyloid-related diseases, it is desirable to use the most effective administration route for treatment, preferably intravenous administration or subcutaneous administration. Alternatively, intramuscular administration can be mentioned, and subcutaneous administration is more preferable.
- the daily dose converted into double-stranded nucleic acid may be 0.1 ⁇ g to 1000 mg, and the daily dose may be It is preferable to administer 1 to 100 mg.
- the present invention also relates to a nucleic acid complex for use in treating a disease; a pharmaceutical composition for use in treating a disease; use of a nucleic acid complex for treating a disease; Use of a nucleic acid complex; a nucleic acid complex for use in the manufacture of a medicament for treating a disease; a method for treating or preventing a disease, comprising administering an effective amount of the nucleic acid complex to a subject in need thereof. provide.
- Mobile phase A 0.1% formic acid in water
- B acetonitrile solution gradient: Mobile phase B linear gradient from 10% to 90% (3 minutes)
- Table X-1 to Table X-4 show reference example compounds.
- Reference example 1 process 3
- Reference example 2 process 1 (9H-Fluoren-9-yl)methyl((2R,3R)-1,3-dihydroxybutan-2-yl)carbamate (Compound RE2-1, Chem-Impex International, Inc, 1.50 g, 4.58 mmol) was dissolved in pyridine (20 mL), 4,4′-dimethoxytrityl chloride (Tokyo Kasei Kogyo Co., Ltd., 1.71 g, 5.04 mmol) was added under ice cooling, and the mixture was stirred at room temperature for 2 hr.
- Reference example 3 process 1 Dimethyl 5-hydroxyisophthalate (Compound RE3-1, Wako Pure Chemical Industries, Ltd., 5.0443 g, 24 mmol) was dissolved in tetrahydrofuran (Wako Pure Chemical Industries 25 mL) to give 2-(tert-butoxycarbonylamino). -1-Ethanol (Tokyo Kasei Kogyo Co., Ltd., 4.0343 g, 25.03 mmol) and triphenylphosphine polymer carrier (Sigma Aldrich Co., 6.61 g, 25.2 mmol) were added, and then 40% diisopropylazo under ice cooling.
- -1-Ethanol Tokyo Kasei Kogyo Co., Ltd., 4.0343 g, 25.03 mmol
- triphenylphosphine polymer carrier Sigma Aldrich Co., 6.61 g, 25.2 mmol
- Reference example 3 process 2 Reference Example 3 Compound RE3-2 synthesized in Step 1 (5.3071 g, 15.02 mmol) was dissolved in methanol (25 mL), and under ice cooling, 2 mol/L sodium hydroxide aqueous solution (Wako Pure Chemical Industries, Ltd., 13 mL ) was added and the mixture was stirred at room temperature for 4 hours. The reaction mixture was ice-cooled, 10% aqueous citric acid solution was added, the mixture was extracted with ethyl acetate, the organic layer was washed with saturated brine, and dried over anhydrous magnesium sulfate. The compound RE3-3 was quantitatively obtained by distilling off the solvent under reduced pressure. ESI-MS m/z: 324 (M-H) -
- Reference example 3 process 3 Reference Example 3 Compound RE3-3 synthesized in Step 2 (1.9296 g, 5.93 mmol) was dissolved in N, N'-dimethylformamide (70 mL), N-1-(9H-fluoren-9-ylmethoxycarbonyl) -Ethylenediamine hydrochloride (3.3493 g, 11.86 mmol), diisopropylethylamine (5.18 mL, 29.7 mmol), and 2-(1H-benzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluoro Phosphate (4.5168 g, 11.88 mmol) was added, and the mixture was stirred at room temperature for 4 hours.
- Reference example 3 process 7 Reference Example 3 compound RE3-7 synthesized in Step 6 (180 mg, 0.406 mmol), N ⁇ ,N ⁇ -bis(tert-butoxycarbonyl)-L-lysine (Nova Biochem, 295 mg, 0.852 mmol), diisopropylethylamine ( 0.354 mL, 2.029 mmol), and 2-(1H-benzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (324 mg, 0.852 mmol) were added, and room temperature was added. It was stirred at.
- Reference example 3 process 8 Reference Example 3 Compound RE3-8 (2.1558 g, 1.9593 mmol) synthesized in Step 7 was dissolved in dichloromethane (20 mL), trifluoroacetic acid (5 mL) was added under ice cooling, and the mixture was stirred at room temperature for 4 hours. did. The compound RE3-9 was quantitatively obtained by distilling off the solvent of the reaction solution under reduced pressure. ESI-MS m/z: 700(M + H) +
- Reference example 4 process 1 Compound RE4-1 synthesized by the method described in Reference Example 3 (Compound RE3-5 in Reference Example 3, 0.5716 g, 0.7582 mmol), Bioconjugate Chemistry, Vol. 22, 690-699, Dodecanoic acid monobenzyl ester (0.4859 g, 1.5164 mmol), diisopropylethylamine (0.662 mL, 3.79 mmol), and 2-(1H-benzotriazol-1-yl)-1,1 synthesized by the method described in 2011.
- 1,3,3-Tetramethyluronium hexafluorophosphate (0.5766 g, 1.516 mmol) was dissolved in N,N dimethylformamide (12 mL), and the mixture was stirred at room temperature for 1 hr.
- the reaction mixture was ice-cooled, saturated aqueous citric acid solution was added, the mixture was extracted with chloroform, the organic layer was washed with saturated brine, and dried over anhydrous magnesium sulfate.
- the solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (chloroform/methanol) to give compound RE4-2 (0.88 g, yield 84%).
- Reference example 4 step 3 Reference Example 4 Compound RE4-3 synthesized in Step 2 (0.437 g, 0.7143 mmol), N ⁇ ,N ⁇ -bis(tert-butoxycarbonyl)-L-lysine (Nova Biochem, 0.5483 g, 1.583 mmol), diisopropylethylamine ( 0.624 mL, 3.57 mmol), 2-(1H-benzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (0.5703 g, 1.5 mmol) was added, and the mixture was allowed to reach room temperature. And stirred for 2 hours.
- Reference example 5 process 1
- Compound RE5-1 synthesized by the method described in Reference Example 3 (RE3-8 in Reference Example 3, 100 mg, 0.091 mmol) was dissolved in methanol (3 mL), and acetic acid (2 ⁇ L) was added, and then palladium was added. / Catalytic hydrogen reduction with carbon was performed. The solvent was distilled off from the obtained solution fraction under reduced pressure to quantitatively obtain compound RE5-2.
- Reference example 5 step 2 Compound RE5-2 (50 mg, 0.052 mmol) and N-(6-maleimidocaproyloxy)succinide (48 mg, 0.155 mmol) were dissolved in tetrahydrofuran (2 mL), and diisopropylethylamine (0.045 mL, 0.259 mmol) was added. In addition, the mixture was stirred at room temperature overnight. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (chloroform/methanol) to give compound RE5-3 (18 mg, yield 30%). ESI-MS m/z: 1160 (M + H) +
- Reference example 6 process 1 Compound RE6-1 synthesized by the method described in Reference Example 3 (Compound RE3-2 in Reference Example 3, 0.9372 g, 2.8809 mmol), ⁇ -alanine methyl ester hydrochloride (manufactured by Tokyo Chemical Industry Co., Ltd., 0.8082 g, 5.7902) Compound RE6-2 was quantitatively obtained by the same method as in Reference Example 3, Step 3.
- Reference example 6 step 3 Reference Example 6 Compound RE6-3 (0.1146 g, 0.290 mmol) synthesized in Step 2 and N-succinimidyl 15-azide-4,7,10,13-tetraoxapentadecanoic acid (N3-PEG4-NHS, Tokyo Chemical Industry Co., Ltd.) Compound RE6-4 was quantitatively obtained by the same method as in Reference Example 5, step 2, using the company's product, 0.0750 g, 0.1931 mmol).
- Reference example 6 process 4 Compound RE6-5 (0.1291 g, 0.193 mmol) synthesized in Reference Example 6 step 3 was used to quantitatively obtain compound RE6-5 in the same manner as in Reference example 3 step 2.
- Reference example 6 process 5
- Reference Example 6 Using the compound RE6-5 (0.1252 g, 0.193 mmol) synthesized in Step 4 and L-glutamic acid di-tert-butyl ester (Watanabe Chemical Co., Ltd., 0.1180 g, 0.399 mmol), Reference Example 3 Step 3 Compound RE6-6 (0.0521 g, yield 24%) was obtained by a method similar to. ESI-MS m/z: 1124 (M + H) +
- Reference example 7 step 1 Compound RE7-1 synthesized by the method described in Reference Example 3 (RE3-9 in Reference Example 3, 0.2586 g, 0.3695 mmol) and Journal of American Chemical Society, Vol. 136. , 16958-16961, using the compound RE-1 described in Reference Example 1 (0.8559 g, 1.7927 mmol) synthesized by the method described in 2014, and in the same manner as in Reference Example 3 Step 3 (0.5272 g, yield 61%) was obtained.
- Reference example 7 step 2 Compound RE7-3 (0.1524 g, yield 61%) was obtained in the same manner as in Reference Example 5 step 1 using the compound RE7-2 (0.2653 g, 0.1097 mmol) synthesized in Reference Example 7 step 1.
- Reference example 10 process 1 Compound RE10-1 (compound RE4-5 in Reference Example 4, 0.1952 g, 0.225 mmol) synthesized by the method described in Reference Example 4 and Journal of American Chemical Society, No. 136. Vol., 16958-16961, using the compound RE1-1 (0.4162 g, 0.93 mmol) of Reference Example 1 synthesized by the method described in 2014, in the same manner as in Reference Example 3 step 3, compound RE10-2 ( 334.8 mg, yield 58%) was obtained.
- Reference example 10 step 3 Reference Example 10 Using the compound D1 (0.1091 g, 0.044 mmol) synthesized in Step 2 and the compound RE2-3 (0.0748 g, 0.184 mmol) of Reference Example 2 in the same manner as in Reference Example 3 Step 3, compound RE10-3. was obtained as a crude product.
- Reference example 10 step 4 Reference Example 10 Compound RE10-3 synthesized in Step 3 (0.161 g, 0.05586 mmol) was dissolved in dichloromethane (5 mL), succinic anhydride (Tokyo Chemical Industry Co., Ltd., 0.1182 g, 1.181 mmol), N, N -Dimethylaminopyridine (0.0224 g, 0.183 mmol) and triethylamine (0.55 mL, 3.95 mmol) were added, and the mixture was stirred overnight at room temperature. The reaction mixture was ice-cooled, water was added, and the mixture was extracted twice with ethyl acetate, then the organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure to obtain a crude product of compound RE10-4. ESI-MS m/z: 1342(M + 2H) 2+ , detected as de-DMTr body
- Reference example 10 step 5 Reference Example 10 Compound RE10-4 synthesized in Step 4 (0.0816 g, 0.02734 mmol), O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate (0.0221 g, 0.05827 mmol) and diisopropylethylamine (0.02 mL, 0.1094 mmol) were dissolved in N,N-dimethylformamide (4 mL), LCAA-CPG (Chem Gene, 0.4882 g) was added, and the mixture was allowed to come to room temperature. And stirred overnight.
- the mixture was filtered off, washed successively with dichloromethane, 10% methanol-dichloromethane solution, and diethyl ether, and then treated with acetic anhydride/pyridine solution to give compound C1 (49.5 ⁇ mol/g, yield 89%). ..
- the yield was calculated from the rate of introduction into the solid phase carrier, which can be calculated from the absorption derived from the DMTr group by adding a 1% trifluoroacetic acid/dichloromethane solution to the solid phase carrier.
- Compound RE13-1 (Compound RE1-1 in Reference Example 1, 898.0 mg, 2.007 mmol) was dissolved in dichloromethane (15 mL), and 1-hydroxybenzotriazole monohydrate (338.0 mg, 2.208 mmol), 1-( 3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (343 mg, 2.208 mmol) and N-1-Z-1,3-diaminopropane hydrochloride (0.4910 mL, 2.208 mmol) were added, and the mixture was stirred at room temperature for 3 hours. It was stirred.
- Reference example 14 step 2 Compound RE14-2 (2.30 g, 2.10 mmol) was dissolved in tetrahydrofuran (46 mL), 10% palladium carbon powder (hydrated product, 54.29%; 424 mg) was added at room temperature, and the mixture was stirred overnight under a hydrogen atmosphere. The reaction solution was filtered, and the solvent was distilled off under reduced pressure to quantitatively obtain compound RE14-3.
- Reference example 15 step 1 Iminodiacetic acid (Tokyo Chemical Industry Co., Ltd., 1.5 g, 6.43 mmol,) was dissolved in methylene chloride (30 mL), and pentafluorotrifluoroacetic acid (Tokyo Chemical Industry Co., Ltd., 2.75 mL, 16.08 mmol) and triethylamine (4.48 (mL, 32.2 mmol) was added and stirred for 4 hours. A 10% aqueous citric acid solution was added to the reaction solution, and the mixture was extracted with chloroform. The organic layer was washed with saturated saline and dried over anhydrous magnesium sulfate.
- pentafluorotrifluoroacetic acid Tokyo Chemical Industry Co., Ltd., 2.75 mL, 16.08 mmol
- triethylamine 4.48 (mL, 32.2 mmol) was added and stirred for 4 hours.
- a 10% aqueous citric acid solution was added to the reaction solution,
- Reference example 16 process 1 Using N-(t-butoxycarbonyl)-L-glutamic acid (manufactured by Tokyo Chemical Industry Co., Ltd.), using the compound RE16-1 (1.855 g, 3.19 mmol) synthesized by the method described in Reference Example 11, Reference Example 15 A crude product of compound RE16-2 was obtained by the same method as in step 1.
- Reference example 18 step 2 The crude product of compound RE18-2 (1.5 g) and 1,4-Diaminobutane (manufactured by Tokyo Chemical Industry Co., Ltd., 3.29 g, 37.3 mmol) were used to prepare compound RE18-3 (0.18 g) in the same manner as in Reference Example 3 Step 3. g, 2-step yield 10%) was obtained.
- Reference example 20 step 1 Compound RE20-1 (AstaTech, 100 mg, 1.148 mmol) and Fmoc-Ser(tBuMe2Si)-OH (Watanabe Chemical Industry, 532 mg, 1.205 mmol) were used in the same manner as in Reference Example 3 Step 3. Compound RE20-2 (410 mg, yield 70%) was obtained.
- Reference example 21 process 1 N-(Tert-butoxycarbonyl)-1,3-diaminopropane (manufactured by Tokyo Chemical Industry Co., Ltd., 1.788 g, 10.26 mmol) was dissolved in dichloromethane (22.8 mL), triethylamine (1.907 mL, 13.68 mmol) was added, and room temperature was added. It was stirred for 15 minutes. A dichloromethane solution (5 mL) of the compound RE21-1 (1.126 g, 6.84 mmol) synthesized by the method described in Organic Letter, Volume 16, pages 6318-6321, 2014 was added dropwise to the reaction solution. And stirred at room temperature for 2 hours.
- Reference example 22 step 1 A crude organism of compound RE22-2 was obtained in the same manner as in Step 1 of Reference Example 2 using compound RE22-1 (produced by Tokyo Kasei Co., Ltd., 1.2 g, 4.24 mmol).
- Reference example 22 step 3 Compound RE22-3 (1.15 g, 3.16 mmol) and Fmoc-Ser(tBuMe2Si)-OH (Watanabe Chemical Industry Co., Ltd., 1.677 g, 3.8 mmol) were used to prepare compound RE22-4 in the same manner as in Reference Example 3 Step 3. (560 mg, yield 31%) was obtained.
- Reference example 23 Using the compounds RE23-1 to RE23-5 and Fmoc-Ser(tBuMe 2 Si)-OH described in Table Y-1, the compound RE23 described in Table Y-2 was prepared in the same manner as in Reference Example 22. -6 ⁇ RE23-10 was obtained. Using the compound RE22-3 of Reference Example 22 and Fmoc-Thr(tBuMe 2 Si)-OH, the compound RE23-11 shown in Table Y-2 was obtained in the same manner as in Reference Example 22. The compound RE23-12 shown in Table Y-2 was obtained in the same manner as in Reference Example 22 by using the compound RE23-1 shown in Table Y-1 and Fmoc-Thr(tBuMe 2 Si)-OH. The NMR analysis data of the compounds synthesized according to this example are shown in Table Y-3.
- Compound RE24-2 was obtained in the same manner as in Reference Example 2 Step 2 using the compound RE24-1 synthesized by the method described in Reference Example 22 (Compound RE22-4 in Reference Example 22, 2.487 g, 3.16 mmol). (1.2 g, yield 67%).
- Reference example 25 The compounds RE25-6 to RE25-7 shown in Table Z-1 were obtained in the same manner as in Reference Example 24 using the compounds RE23-6 to RE23-12 shown in Table Y-2. The mass spectrometry results of the compounds synthesized in this example are shown in Table Z-2.
- Reference example 27 step 1 Compound RE27-1 (2.000 g, 12.98 mmol) was dissolved in N, N'-dimethylformamide (30 mL), potassium hydrogen carbonate (1.559 g, 15.57 mmol) and benzyl chloride (2.328 mL, 19.47 mmol) were added. The mixture was stirred at room temperature for 4 hours. A saturated aqueous ammonium chloride solution was added to the reaction solution, the mixture was extracted with dichloromethane, the organic layer was washed with water, and dried over anhydrous sodium sulfate.
- Reference example 27 process 2 Compound RE27-2 (2.500 g, 10.24 mmol) was dissolved in N, N'-dimethylformamide (30 mL), potassium carbonate (5.660 g, 40.90 mmol) and tert-butyl bromoacetic acid (3.300 mL, 22.52 mmol) were added. The mixture was stirred at 90°C for 4 hours. A saturated aqueous ammonium chloride solution was added to the reaction solution, and the mixture was extracted with dichloromethane. Then, the organic layer was washed with saturated saline and dried over anhydrous sodium sulfate.
- Reference example 27 step 3 Compound RE27-3 (1.000 g, 2.116 mmol) was dissolved in dichloromethane (10 mL), trifluoroacetic acid (10.00 mL, 130.0 mmol) was added, and the mixture was stirred at room temperature for 6 hr. The solvent was distilled off under reduced pressure to obtain a crude product of compound RE27-4.
- Reference example 27 step 4 Compound RE27-4 (350.0 mg, 0.9710 mmol) was dissolved in N, N'-dimethylformamide (7 mL) to give 1-hydroxybenzotriazole monohydrate (327.0 mg, 2.137 mmol), 1-(3-dimethyl Aminopropyl)-3-ethylcarbodiimide hydrochloride (410.0 mg, 2.137 mmol) and iminodiacetic acid di-tert-butyl ester (524.0 mg, 2.137 mmol) were added, and the mixture was stirred at room temperature for 5 hours.
- 1-hydroxybenzotriazole monohydrate 327.0 mg, 2.137 mmol
- 1-(3-dimethyl Aminopropyl)-3-ethylcarbodiimide hydrochloride 410.0 mg, 2.137 mmol
- iminodiacetic acid di-tert-butyl ester 524.0 mg, 2.137 mmol
- Reference example 27 step 5 Compound RE27-5 (610.0 mg, 0.7490 mmol) was dissolved in dichloromethane (6 mL), trifluoroacetic acid (6 mL, 78.00 mmol) was added, and the mixture was stirred at room temperature for 1 hr. The solvent was distilled off under reduced pressure to obtain a crude product of compound RE27-6.
- Reference example 28 step 1 Compound RE28-1 synthesized by the method described in Reference Example 26 (Compound RE26-3 in Reference Example 26, 474 mg, 0.744 mmol) was dissolved in N,N'-dimethylformamide (10 mL), and the journal was obtained at room temperature. ⁇ Trans-cyclohexane-1,4-dicarboxylic acid monobenzyl ester (0.234 mg, 0.893) synthesized by the method described in Journal of Medicinal Chemistry, Volume 54, pages 2433-2446, 2011.
- Reference example 28 step 2 Compound RE28-2 (341 mg, 0.387 mmol) was dissolved in dichloromethane (3.4 mL), trifluoroacetic acid (3.4 mL) was added at room temperature, and the mixture was stirred overnight. The reaction solution was concentrated under reduced pressure, azeotroped with ethyl acetate, and purified by slurry with heptane to obtain compound RE28-3 (254 mg, yield 100%). ESI-MS m/z: 656 (M + H) +
- Reference example 29 process 2 Compound RE29-2 (323 mg, 0.507 mmol) was dissolved in N, N'-dimethylformamide (6.5 mL), and potassium carbonate (84.0 mg, 0.609 mmol) and benzyl bromoacetate (139 mg, 0.609 mmol) were added at room temperature. Was added and stirred for 3 hours. After water was added to the reaction solution and the mixture was extracted with ethyl acetate, the organic layer was washed with saturated saline and dried over anhydrous sodium sulfate.
- Reference example 29 step 3 Compound RE29-3 (312 mg, 0.398 mmol) was dissolved in dichloromethane (3.1 mL), trifluoroacetic acid (3.1 mL) was added at room temperature, and the mixture was stirred overnight. The reaction mixture was concentrated under reduced pressure and azeotroped with ethyl acetate to give compound RE29-4 (252 mg, quantitative). ESI-MS m/z: 561 (M + H) +
- Reference example 30 step 2 Compound RE30-2 (500 mg, 1.40 mmol) was suspended in acetonitrile (10 mL), and acrylic acid tert-butyl ester (3.59 g, 28.0 mmol) and benzyltrimethylammonium hydroxide (40% aqueous solution; 1.76 mL) were added at room temperature. , 702 mmol) was added and the mixture was stirred overnight. The solvent was evaporated under reduced pressure, water was added, the mixture was extracted with ethyl acetate, the organic layer was washed with saturated brine and dried over anhydrous sodium sulfate.
- Reference example 30 step 4 Compound RE30-4 (232 mg, 0.276 mmol) was dissolved in N, N'-dimethylformamide (4.6 mL), and dodecanoic acid monobenzyl ester (0.133 mg, 0.414 mmol) and diisopropylethylamine (0.145 mL, 0.829) were dissolved at room temperature. mmol) and O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (158 mg, 0.414 mmol) were added and stirred overnight.
- Reference example 30 step 5 Compound RE30-5 (273 mg, 0.239 mmol) was dissolved in dichloromethane (2.7 mL), trifluoroacetic acid (2.7 mL) was added at room temperature, and the mixture was stirred overnight. The reaction mixture was concentrated under reduced pressure and azeotroped with ethyl acetate to give compound RE30-6 (231 mg, quantitative). ESI-MS m/z: 919 (M + H) +
- Reference example 31 step 1 4-Nitroisophthalic acid RE31-1 (500 mg, 2.37 mmol) and N-Boc-ethylenediamine (808 mg, 5.21 mmol) were dissolved in N,N'-dimethylformamide (10 mL), and triethylamine (0.90 mL, 7.11 mmol), 1-hydroxybenzotriazole monohydrate (703 mg, 5.21 mmol) and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (1.36 g, 7.11 mmol) were added to give 16 Stir for hours. The reaction solution was post-treated, and the crude product was purified by silica gel column chromatography to obtain compound RE31-2 (650 mg, yield 55%).
- Reference example 31 step 2 Compound RE31-2 (500 mg, 1.01 mmol) and zinc dust (330 mg, 5.05 mmol) were suspended in methanol (3.5 mL) and tetrahydrofuran (3.5 mL), and ammonium chloride (378 mg, 7.07 mmol) was added at 0°C. Was added dropwise, and the mixture was stirred at room temperature for 24 hours. The reaction solution was post-treated, and the crude product was purified by silica gel column chromatography to obtain compound RE31-3 (160 mg, yield 34%).
- Reference example 32 step 1 3,5-Dinitrobenzoic acid RE32-1 (500 mg, 2.36 mmol) and N-Cbz-ethylenediamine (588 mg, 2.83 mmol) were dissolved in N,N'-dimethylformamide (5.0 mL), and triethylamine was added at room temperature. (0.65 mL, 4.72 mmol), 1-hydroxybenzotriazole monohydrate (380 mg, 2.83 mmol) and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (675 mg, 3.54 mmol) were added. And stirred for 16 hours. The reaction solution was post-treated, and the crude product was purified by silica gel column chromatography to obtain compound RE32-2 (445 mg, yield 48%).
- Reference example 32 step 2 Compound RE32-2 (200 mg, 0.515 mmol) was dissolved in ethanol (5.0 mL), tin(II) chloride (584 mg, 3.09 mmol) and concentrated hydrochloric acid (0.2 mL) were added at room temperature, and the mixture was added at 80°C for 16 Stir for hours. The reaction solution was post-treated to obtain compound RE32-3 (180 mg, quantitative). ESI-MS m/z: 329 (M + H) +
- Reference example 35 step 1 Compound RE35-1 synthesized by the method described in Reference Example 11 (Compound RE11-2 in Reference Example 11, 1.015 g, 1.748 mmol) was dissolved in N,N′-dimethylformamide (12 mL), and the mixture was dissolved at room temperature for 10 minutes. % Palladium carbon powder (hydrous product, 54.29%; 187 mg) was added, and the mixture was stirred under a hydrogen atmosphere for 6 hours. The reaction solution was filtered. Compound RE26-5 (250.0 mg, 0.350 mmol) synthesized in Reference Example 26, 1-hydroxybenzotriazole monohydrate (26.80 mg, 0.1750 mmol), and 1-(3-dimethylaminopropyl)-3 in the filtrate.
- Reference Example 36 Step 1 Compound RE36-1 synthesized by the method described in Reference Example 12 (Compound RE12-2 in Reference Example 12, 500 mg, 0.879 mmol) was dissolved in N,N′-dimethylformamide (6.5 mL), and the mixture was dissolved at room temperature for 10 % Palladium carbon powder (hydrous product, 54.29%; 94 mg) was added, and the mixture was stirred under a hydrogen atmosphere for 4 hours. The reaction solution was filtered. The compound RE26-5 in Reference Example 26 (126.0 mg, 0.176 mmol), 1-hydroxybenzotriazole monohydrate (13.47 mg, 0.088 mmol), and 1-(3-dimethylaminopropyl)-3-ethyl were added to the filtrate.
- Reference Example 37 Step 1 Compound RE37-1 synthesized by the method described in Reference Example 13 (Compound RE13-2 in Reference Example 13, 430 mg, 0.674 mmol) was dissolved in N,N'-dimethylformamide (6 mL), and the mixture was dissolved at room temperature for 10 % Palladium carbon powder (hydrous product, 54.29%; 79 mg) was added, and the mixture was stirred under a hydrogen atmosphere for 4 hours. The reaction solution was filtered. The compound RE26-5 in Reference Example 26 (105.0 mg, 0.148 mmol), 1-hydroxybenzotriazole monohydrate (11.31 mg, 0.074 mmol), and 1-(3-dimethylaminopropyl)-3-ethyl were added to the filtrate.
- Reference Example 38 Step 1 Compound RE38-1 synthesized by the method described in Reference Example 12 (Compound RE12-2 in Reference Example 12, 450 mg, 0.791 mmol) was dissolved in N,N′-dimethylformamide (6 mL), and the mixture was dissolved at room temperature for 10 % Palladium carbon powder (hydrous product, 54.29%; 85 mg) was added, and the mixture was stirred under a hydrogen atmosphere for 5 hours. The reaction solution was filtered. The compound RE27-6 in Reference Example 27 (94 mg, 0.158 mmol), 1-hydroxybenzotriazole monohydrate (133.0 mg, 0.871 mmol), and 1-(3-dimethylaminopropyl)-3-ethyl were added to the filtrate.
- Reference Example 39 Step 1 Compound RE39-1 synthesized by the method described in Reference Example 13 (Compound RE13-2 in Reference Example 13, 418 mg, 0.655 mmol) was dissolved in N,N′-dimethylformamide (6 mL), and the mixture was dissolved at room temperature for 10 % Palladium carbon powder (hydrated product, 54.29%; 77 mg) was added, and the mixture was stirred under a hydrogen atmosphere for 5 hours. The reaction solution was filtered. The compound RE27-6 (85 mg, 0.144 mmol), 1-hydroxybenzotriazole monohydrate (121.0 mg, 0.791 mmol) synthesized in Reference Example 27 was added to the filtrate, and 1-(3-dimethylaminopropyl)-3.
- Reference example 39 process 2 Compound RE39-2 (186 mg, 0.073 mmol) was dissolved in tetrahydrofuran (2.8 mL) and water (0.93 mL), 10% palladium carbon powder (hydrated product, 54.29%; 40 mg) was added at room temperature, and hydrogen atmosphere was added. Stirred under 2 hours. The reaction solution was filtered, and the solvent was evaporated under reduced pressure to give compound D6 (156.7 mg, yield 87%).
- Reference example 40 step 1 Compound D5 (171 mg, 0.079 mmol) synthesized by the method described in Reference Example 38 was dissolved in N, N'-dimethylformamide (3.4 mL), and glycine benzyl p-toluenesulfonate (32.0 mg, 0.095 mmol) was added. , 1-Hydroxybenzotriazole monohydrate (12.09 mg, 0.079 mmol), and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (18.16 mg, 0.095 mmol) were added, and the mixture was stirred at room temperature overnight. ..
- Reference example 40 step 2 Compound RE40-2 (54 mg, 0.023 mmol) was dissolved in tetrahydrofuran (0.83 mL) and water (0.28 mL), 10% palladium carbon powder (hydrated product, 54.29%; 18 mg) was added at room temperature, and hydrogen atmosphere was added. Stirred under 2 hours. The reaction solution was filtered, and the solvent was evaporated under reduced pressure to give compound RE40-3 (50.1 mg, yield 97%).
- Reference Example 42 Step 1 Compound RE42-1 synthesized by the method described in Reference Example 11 (Compound RE11-2 in Reference Example 11, 500 mg, 0.861 mmol) was dissolved in N,N'-dimethylformamide (10 mL), and the mixture was dissolved at room temperature for 10 % Palladium carbon powder (hydrated product, 54.29%; 92.1 mg) was added, and the mixture was stirred under a hydrogen atmosphere for 2 hours.
- Reference Example 43 Step 1 Compound RE43-1 synthesized by the method described in Reference Example 13 (Compound RE13-2 in Reference Example 13, 500 mg, 0.784 mmol) was dissolved in N,N′-dimethylformamide (10 mL), and the mixture was dissolved at room temperature for 10 % Palladium carbon powder (hydrated product, 54.29%; 92.1 mg) was added, and the mixture was stirred under a hydrogen atmosphere for 2 hours.
- Reference Example 44 Step 1 Compound RE44-1 synthesized by the method described in Reference Example 31 (Compound RE31-4 in Reference Example 31, 150 mg, 0.228 mmol) was dissolved in dichloromethane (1.5 mL), and trifluoroacetic acid (1.5 mL) at room temperature. Was added and stirred for 4 hours. The reaction solution was concentrated under reduced pressure and azeotroped with ethyl acetate. The residue was dissolved in N,N'-dimethylformamide (3 mL), and at room temperature the compound RE14-3 of Reference Example 14 (574 mg, 0.571 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide.
- Reference Example 45 Step 1 Compound RE45-1 synthesized by the method described in Reference Example 32 (Compound RE32-3 in Reference Example 32, 75.0 mg, 0.228 mmol) was dissolved in N, N′-dimethylformamide (3.0 mL), and the solution was referred to at room temperature.
- Compound RE14-3 of Example 14 (574 mg, 0.571 mmol), diisopropylethylamine (0.199 mL, 1.14 mmol), O-(7-azabenzotriazol-1-yl)-N,N,N',N'-tetra Methyluronium hexafluorophosphate (217 mg, 0.571 mmol) was added and the mixture was stirred overnight.
- Reference example 45 step 2 Compound RE45-2 (196 mg, 0.085 mmol) was dissolved in tetrahydrofuran/water (4/1; 10 mL), 10% palladium carbon powder (hydrated product, 54.29%; 36.1 mg) was added at room temperature, and hydrogen atmosphere was added. Stirred under 2 hours. 6-maleimidohexanoic acid (19.8 mg, 0.094 mmol), 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride ( 47.0 mg, 0.170 mmol) was added and the mixture was stirred overnight.
- Reference Example 47 Step 1 Using the compound RE47-1 synthesized by the method described in Reference Example 33 (Compound RE33-4 in Reference Example 33, 0.101 g, 0.282 mmol), the compound RE15-2 of Reference Example 15 (0.607 g, 0.613 mmol) was prepared. A compound RE47-2 (0.25 g, yield 39%) was obtained by using the same method as in Reference Example 3, step 3. ESI-MS m/z: 2304(M+H) +
- Reference example 51 step 1 Compound RE51-1 (0.122 g, 0.054 mmol) synthesized by the method described in Reference Example 7 and the method described in Bioconjugate Chemistry, Volume 22, 690-699, 2011. Compound RE51-2 (0.076 g, yield 56%) was obtained in the same manner as in Reference Example 4, Step 1 using hexanoic acid monobenzyl ester synthesized by the same method.
- Reference example 54 step 2 A crude product of compound RE54-2 was obtained in the same manner as in Reference Example 10 step 4 using compound RE54-1 (90 mg, 0.030 mmol). ESI-MS m/z: 1558 (M+HCOOH-2H) 2-
- Reference example 56 step 2 A crude product of compound RE56-2 was obtained in the same manner as in Reference Example 10 step 4 using compound RE56-1 (50 mg, 0.017 mmol). ESI-MS m/z: 1587 (M+HCOOH-2H) 2-
- Reference example 57 process 2 The compound RE57-1 (40 mg, 0.012 mmol) was used to obtain a crude product of the compound RE57-2 in the same manner as in Reference Example 10 step 4.
- Reference example 58 step 2 Compound RE58-1 (58 mg, 0.022 mmol) was dissolved in methanol (0.15 mL) and synthesized by the method described in Journal of Organic Chemistry, Vol. 74, pages 6837-6842, 2009.
- Reference example 60 Compound D1, and the structure described in Table Z-1 or the compound RE20-4 of Reference Example 20, in the same manner as in Reference Example 59 Step 1 and Step 2, described in Table P-1 and Table P-2. The compound was obtained.
- Table P-3 shows the results of mass spectrometry of the compounds synthesized in this example.
- Reference Example 62 Synthesis of C9 to C17 Using the compounds shown in Table P-1 and Table P-2, the compounds shown in Table Q-1 and Table Q-2 were obtained in the same manner as in Reference Example 61. The supported amounts of the compounds synthesized in this example are shown in Table Q-3.
- Process 2 Compound 1-1 (3'-APCS-ssRNA) synthesized in Step 1 was mixed with a mixed buffer solution (100 mmol/L potassium acetate, 30 mmol/L 2-[4-(2-hydroxyethyl)piperazin-1-yl). ] The concentration was adjusted (50 ⁇ mol/L) with ethanesulfonic acid, HEPES)-KOH (pH 7.4), 2 mmol/L magnesium acetate). Equal amounts of the above-mentioned sense strand and antisense strand (50 ⁇ mol/L) were mixed, and the mixture was allowed to stand at 80° C. for 10 minutes. The antisense strand sequences are as described in Table R-3 to Table R-4. The temperature was gradually lowered, and the mixture was allowed to stand at 37° C. for 1 hour to obtain a double-stranded compound 1-2.
- a mixed buffer solution 100 mmol/L potassium acetate, 30 mmol/L 2-[4-(2-hydroxyethyl)
- Examples 2 to 10 Synthesis of Compounds 2-1 to 10-1 and Compounds 2-2 to 10-2 Compound 2 1 to 10-1 and compounds 2-2 to 10-2 were synthesized.
- Examples 12 to 43 Synthesis of Compounds 12-1 to 43-1 and Compounds 12-2 to 43-2 Compound 12 1 to 43-1 and compounds 12-2 to 43-2 were synthesized.
- the sequence (sense strand) of the nucleic acid complex synthesized according to this example and the result of mass spectrometry are shown in Tables R-1 and R-2.
- N(M) is 2'-O-methyl modified RNA
- N(F) is 2'-fluorine modified RNA
- p is phosphorylation at the 5'end
- ⁇ is Phosphorothioate
- X represents the residue of the reference compound A1
- Y represents the residue of the reference compound D5.
- a double-stranded nucleic acid consisting of a sense strand composed of the ribonucleotides represented by SEQ ID NOS: 2069 to 2111 and an antisense strand composed of the ribonucleotides represented by SEQ ID NOs: 2112 to 2154 (SEQ ID NO: n (n 2069... 2111) and the antisense strand shown in SEQ ID NO: [n+43] make a pair).
- N(M) is 2'-O-methyl modified RNA
- N(F) is 2'-fluorine modified RNA
- p is phosphorylation at the 5'end
- ⁇ Indicates phosphorothioate.
- Reference Test Example 1 Measurement of APCS mRNA knockdown activity of siRNA in human cells
- RNAiMax transfection reagent (Thermo Fisher Scientific, Catalog No. 13778150) were diluted with Opti-MEM I Reduced Serum Medium medium (Thermo Fisher Scientific, Catalog No. 31985070). 20 ⁇ L of siRNA/RNAiMax mixed solution was added.
- RMG-I cells JCRB cell bank, JCRB0172
- a human ovarian cancer-derived cell line were seeded in 384-well culture plates at 10,000 cells/40 ⁇ L/well, and 37°C, 5% CO 2 conditions. Cultured under 24 hours.
- Ham's F-12 Nutrient Mix medium (Thermo Fisher Scientific, Catalog No.
- RNA extract 1 ⁇ L of Stop Solution (the contents of the kit) was added and mixed for 2 minutes to obtain an RNA extract.
- the APCS mRNA relative expression level value when each siRNA was introduced was calculated by setting the APCS mRNA amount when the RMG-I cells were treated with the transfection reagent alone without adding siRNA to 1.0. This experiment was performed twice, and the minimum values of APCS mRNA relative expression levels are shown in Tables 1-1 to 1-13.
- Table 2 shows the full-length base sequence of APCS 2nd strand cDNA.
- Reference Test Example 3 Measurement of APCS mRNA knockdown activity of modified siRNA in human cells 2
- each double-stranded nucleic acid and RNAiMax transfection reagent (Thermo Fisher Scientific Co., Catalog No. 13778150) were diluted with Opti-MEM I Reduced Serum Medium medium (Thermo Fisher Scientific Co., Catalog No. 31985070). 20 ⁇ L of the mixed siRNA/RNAiMax mixture was added.
- RMG-I cells JCRB cell bank, JCRB0172
- a human ovarian cancer-derived cell line were seeded in 96-well culture plates at 10,000 cells/60 ⁇ L/well, and 37°C, 5% CO2 conditions The cells were cultured for 24 hours.
- Ham's F-12 Nutrient Mix medium (Thermo Fisher Scientific, Catalog No.
- GAPDH is a constitutively expressed gene and was measured as an internal control to correct the APCS gene expression level.
- the APCS mRNA relative expression level value when each siRNA was introduced was calculated by setting the APCS mRNA amount when the RMG-I cells were treated with the transfection reagent alone without adding siRNA to 1.0. This experiment was performed twice, and the average value of the relative expression levels of APCS mRNA is shown in Table M1-3.
- N(M) represents 2'-O-methyl modified RNA and N(F) represents 2'-fluorine modified RNA.
- Test Example 1 Knockdown test of APCS mRNA of nucleic acid complex on human primary hepatocytes In vitro knockdown activity on human primary hepatocytes of each nucleic acid complex obtained in Examples 1 to 43 was measured.
- Each nucleic acid complex diluted with Optimem (Opti-MEM) (Thermo Fisher Scientific Co., Catalog No. 31985) was prepared so that the final concentration of this nucleic acid complex would be 300, 30, 3 or 0.3 nmol/L.
- Opti-MEM Optimem
- 96 well collagen I-coated culture plate (Corning Co., Catalog No.: 356407), 20 ⁇ L each was dispensed, and then suspended in Plating Medium (Biopredic International Co., Catalog No. LV0304-2).
- Human primary hepatocytes (Biopredick International, Catalog No. HEP187) were seeded at 10,000 cells/80 ⁇ L/well and cultured at 37° C. under 5% CO2 conditions for 6 hours, and then the culture supernatant was used. After careful removal, incubation medium (manufactured by Biopredic International, Catalog No. LV0304-2) was added, and each nucleic acid complex was subjected to human primary hepatocytes. As a negative control group, human primary hepatocytes provided with 20 ⁇ L of Optimem were added to each nucleic acid complex, and the cells were cultured in a 5% CO2 incubator at 37°C for 18 hours and then buffered with ice-cold phosphate buffer.
- each nucleic acid complex suppressed the expression of APCS gene mRNA after addition to human primary hepatocytes.
- Test Example 2 In Vivo Knockdown Test of Nucleic Acid Complex in Mice
- the nucleic acid complexes obtained in Examples 1 to 43 were subjected to an in vivo knockdown test by the following method.
- Each nucleic acid complex was diluted with phosphate buffered saline (DPBS) (manufactured by Nacalai Tesque, Inc.) according to the test.
- DPBS phosphate buffered saline
- a human hepatocyte-transplanted PXB mouse PXB/human Hepatocyte repopulated cDNA-uPA/SCID Tg, obtained from Phoenix Bio was used to evaluate the effect of the nucleic acid complex on human APCS.
- each nucleic acid complex was subcutaneously administered to the mice.
- the dose was 10 mg/kg, and the dose was 5 mL/kg.
- DPBS alone was subcutaneously administered to mice.
- Blood was collected 6 days before administration and 1, 2, 3, 6, 10 and 13 days after administration, and serum was obtained by centrifugation at 1500 ⁇ g.
- the amount of human APCS in blood was evaluated using these sera using human SAP ELISA (SAP, Human, ELISA kit, HycultBiotech, #HK331-02).
- the ELISA was performed according to the attached manual. Changes in blood human APCS concentration in each mouse group are shown in FIG. Table S2 shows the APCS expression ratio (%) in the nucleic acid complex-administered group to the DPBS-administered group.
- nucleic acid complex of the present invention was administered to mice expressing human APCS to reduce APCS protein expression in mouse peripheral blood.
- the nucleic acid complex of the present invention can be administered to mammals and used in vivo to treat amyloid-related diseases.
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Abstract
Description
また、核酸医薬は、細胞内における標的選択性と活性の高さから、抗体、低分子医薬に次ぐ次世代医薬として期待されている。
しかしながら、核酸医薬の問題点として、標的組織への送達が困難であることが挙げられる。
また、APCSはカルシウム依存的にすべての種類のアミロイド線維に結合する生化学的特性を持ち、アミロイドを有する患者のアミロイド中にも20,000 mgもの多量のAPCSが含まれていることが知られている(非特許文献2)。
APCSは、すべてのアミロイド関連疾患の患者におけるアミロイド中に存在することから、アミロイド関連疾患の患者における診断マーカーとして用いられている(非特許文献3)。
APCSがアミロイドに結合することでプロテアーゼによる分解耐性や免疫細胞による貪食に対する耐性を誘導することにより、APCSが結合したアミロイドを安定化し得ることが明らかとなっており、また、APCSのアミロイドへの結合を阻害することで、臓器へのアミロイド沈着及びそれに伴う組織障害を軽減できることが、動物モデルを用いた研究ならびに臨床研究より強く示唆されている(非特許文献4および5)。
APCSの発現を特異的に抑制することにより、アミロイド関連疾患を予防又は治療できると期待できるものの、APCSの発現を特異的に抑制する医薬品はこれまでに報告されていない。
[1]
下記式1で表される核酸複合体。
式1:
Xは、センス鎖およびアンチセンス鎖からなり、少なくとも11個の塩基対の二重鎖領域を含む二本鎖核酸であり、
該二本鎖核酸は、該アンチセンス鎖中の、17個~30個のヌクレオチドの鎖長のオリゴヌクレオチド鎖において、表1-1~表1-13に記載された標的APCS mRNA配列のいずれかと相補的であり、
該センス鎖の3'末端または5'末端はS3に結合し、
L1およびL2は、それぞれ独立して、糖リガンドであり、
S1、S2およびS3は、それぞれ独立して、リンカーである。)
[2]
下記式2で表される構造を有する、[1]に記載の核酸複合体。
式2:
X、L1、L2およびS3は、それぞれ前記と同義であり、
P1、P2、P3、P4、P5およびP6、ならびにT1およびT2は、それぞれ独立して、存在しないか、または、-CO-、-NH-、-O-、-S-、-O-CO-、-S-CO-、-NH-CO-、-CO-O-、-CO-S-もしくは-CO-NH-であり、
Q1、Q2、Q3およびQ4は、それぞれ独立して、存在しないか、または、置換もしくは無置換の炭素数1~12のアルキレンまたは-(CH2CH2O)n-CH2CH2-であり、nは0~99の整数であり、
B1およびB2は、それぞれ独立して、結合手であるか、または、下記式2-1で表されるいずれかの構造であり、各構造における末端の黒丸点は、それぞれ、P2またはP3あるいはP5またはP6との結合点であり、m1、m2、m3およびm4は、それぞれ独立して、0~10の整数であり、
式2-1:
q1、q2、q3およびq4は、それぞれ独立して、0~10の整数であり、
ただし、p1およびp2がそれぞれ2または3の整数であるとき、それぞれのP3およびP6、Q2およびQ4、T1およびT2ならびにL1およびL2は、同一または異なっていてもよく、q1~q4が2~10のとき、それぞれの-[P2-Q1]-,-[Q2-P3]-,-[P5-Q3]-,-[Q4-P6]-の組み合わせは同一または異なっていてもよい。)
[3]
P1およびP4が、それぞれ独立して、-CO-NH-、-NH-CO-または-O-である[2]に記載の核酸複合体。
[4]
-[P2-Q1]q1-および-[P5-Q3]q3-がそれぞれ独立して、存在しないか、または下記式3-1~式3-3で表されるいずれかの構造である、[2]または[3]に記載の核酸複合体。
式3-1:
m5およびm6は、それぞれ独立して、0~10の整数であり、式3-1~式3-3の構造における末端の黒丸点は、それぞれ、B1またはB2あるいはP1またはP4との結合点である。)
[5]
下記式4-1~式4-9で表されるいずれかの構造を有する、[2]~[4]のいずれか1項に記載の核酸複合体。
式4-1:
X、L1、L2、S3、P3、P6、T1、T2、Q2、Q4、q2およびq4はそれぞれ前記と同義である。)
[6]
下記式5で表される構造を有する、[1]に記載の核酸複合体。
式5:
X、S3、P1、P2、P3、Q1、Q2、B1、T1、L1、p1、q1およびq2はそれぞれ前記と同義である。)
[7]
P1が-CO-NH-、-NH-CO-または-O-である[6]に記載の核酸複合体。
[8]
下記式6-1~式6-9で表されるいずれかの構造を有する、[6]または[7]に記載の核酸複合体。
式6-1:
X、S3、P3、Q2、T1、L1およびq2は、それぞれ前記と同義である。)
[9]
下記式7-1~式7-9で表されるいずれかの構造を有する、[2]~[5]のいずれか1項に記載の核酸複合体。
式7-1:
X、S3、L1およびL2は、それぞれ前記と同義である。)
[10]
前記糖リガンドが、N-アセチルガラクトサミンである、[1]~[9]のいずれか1項に記載の核酸複合体。
[11]
前記二本鎖核酸が修飾ヌクレオチドを含む、[1]~[10]のいずれか1項に記載の核酸複合体。
[12]
センス鎖の3'末端およびアンチセンス鎖の5'末端は、平滑末端を形成する、[1]~[11]のいずれか1項に記載の核酸複合体。
[13]
前記二本鎖核酸が、糖部修飾ヌクレオチドを含む、[11]に記載の核酸複合体。
[14]
下記式7-8-1で表される構造を有する、[1]~[13]のいずれか1項に記載の核酸複合体。
式7-8-1:
[15]
Xが、表1-1~表1-13に記載のセンス鎖/アンチセンス鎖から成る群から選択される1対のセンス鎖/アンチセンス鎖である、[1]~[14]のいずれか1項に記載の核酸複合体。
[16]
Xが、表M1-1~表M1-3および表R-1~表R-4に記載のセンス鎖/アンチセンス鎖から成る群から選択される1対のセンス鎖/アンチセンス鎖である、[1]~[14]のいずれか1項に記載の核酸複合体。
[16-A1]
Xが、3'末端がS3に結合するセンス鎖と、配列番号2126、2144、2146のいずれかのアンチセンス鎖からなる1対のセンス鎖/アンチセンス鎖である、[1]~[14]のいずれか1項に記載の核酸複合体。
[16-A2]
下記式6-1~式6-9で表される構造を有する、[16-A1]に記載の核酸複合体。
式6-7:
X、S3、P3、Q2、T1、L1およびq2は、それぞれ前記と同義である。)
[16-A3]
下記式7-8で表される構造を有する、[16-A1]に記載の核酸複合体。
式7-8:
X、S3、L1およびL2は、それぞれ前記と同義である。)
[16-A4]
下記式7-8-1で表される構造を有する、[16-A1]に記載の核酸複合体。
式7-8-1:
[16-B1]
Xが、配列番号2083のセンス鎖と配列番号2126のアンチセンス鎖、配列番号2101のセンス鎖と配列番号2144のアンチセンス鎖、または配列番号2103のセンス鎖と配列番号2146のアンチセンス鎖からなる1対のセンス鎖/アンチセンス鎖である、[1]~[14]のいずれか1項に記載の核酸複合体。
[16-B2]
下記式6-1~式6-9で表される構造を有する、[16-B1]に記載の核酸複合体。
式6-7:
X、S3、P3、Q2、T1、L1およびq2は、それぞれ前記と同義である。)
[16-B3]
下記式7-8で表される構造を有する、[16-B1]に記載の核酸複合体。
式7-8:
X、S3、L1およびL2は、それぞれ前記と同義である。)
[16-B4]
下記式7-8-1で表される構造を有する、[16-B1]に記載の核酸複合体。
式7-8-1:
[17]
[1]~[16]のいずれか1項に記載の核酸複合体を含む、医薬組成物。
[18]
細胞内に導入するための、[17]に記載の医薬組成物。
[19]
静脈内投与または皮下投与される、[17]または[18]に記載の医薬組成物。
[20]
[1]~[16]のいずれか1項に記載の核酸複合体または[17]~[19]のいずれか1項に記載の医薬組成物を、それを必要とする患者に投与することを含む、疾患の治療または予防方法。
[21]
[1]~[16]のいずれか1項に記載の核酸複合体または[17]~[19]のいずれか1項に記載の医薬組成物を用いて二本鎖核酸を細胞内に導入することを含む、APCS遺伝子の発現を抑制する方法。
[22]
[1]~[16]のいずれか1項に記載の核酸複合体または[17]~[19]のいずれか1項に記載の医薬組成物を哺乳動物に投与することを含む、アミロイド関連疾患の治療方法。
[23]
[1]~[16]のいずれか1項に記載の核酸複合体または[17]~[19]のいずれか1項に記載の医薬組成物を含む、アミロイド関連疾患の治療に用いるための医薬。
[24]
[1]~[16]のいずれか1項に記載の核酸複合体または[17]~[19]のいずれか1項に記載の医薬組成物を含む、アミロイド関連疾患の治療剤。
[25]
アミロイド関連疾患が、APCSを含んだアミロイド線維により媒介される障害によって引き起こされる疾患である、[22]に記載の治療方法。
[26]
アミロイド関連疾患が、APCSを含んだアミロイド線維により媒介される障害によって引き起こされる疾患である、[23]に記載の医薬。
[27]
アミロイド関連疾患が、APCSを含んだアミロイド線維により媒介される障害によって引き起こされる疾患である、[24]に記載の治療剤。
式1:
Xは、センス鎖およびアンチセンス鎖からなり、少なくとも11個の塩基対の二重鎖領域を含む二本鎖核酸であり、
該二本鎖核酸は、該アンチセンス鎖中の、17個~30個のヌクレオチドの鎖長のオリゴヌクレオチド鎖において、表1-1~表1-13に記載された標的APCS mRNA配列のいずれかと相補的であり、
該センス鎖の3'末端または5'末端はS3に結合し、
L1およびL2は、それぞれ独立して、糖リガンドであり、
S1、S2およびS3は、それぞれ独立して、リンカーである。
式1-1:
X、L1、L2、S1、S2およびS3は、それぞれ前記と同義である。
本明細書において、前記と同義とは、式1-1中を例示して説明すると、式1-1中のX、L1、L2、S1およびS2それぞれについて、式1において前記するX、L1、L2、S1およびS2それぞれについての定義と同様の基であり得ることを意味している。
また、該二本鎖核酸は、該アンチセンス鎖中の、17個~30個のヌクレオチドの鎖長のオリゴヌクレオチド鎖において、後述する表1-1~表1-13に記載された標的APCS mRNA配列のいずれかと相補的である。
さらにまた、該センス鎖の3'末端または5'末端はS3に結合する。
本発明において、糖リガンドとは、標的細胞に発現している受容体に結合可能な糖類(単糖、二糖、三糖および多糖等)に由来する基を意味する。また、本発明において、糖リガンドがO-結合によりS1およびS2のリンカーに結合している場合には、糖リガンドとは、それを構成する糖類の結合に関与する水酸基を除いた部分が糖類に由来する基を意味する。
本発明においては、オリゴヌクレオチドの標的となる糖リガンドを選択すればよい。
単糖としては、例えば、アロース、アルトース、アラビノース、クラジノース、エリトロース、エリスルロース、フルクトース、D-フシトール、L-フシトール、フコサミン、フコース、フクロース、ガラクトサミン、D-ガラクトサミニトール、N-アセチル-ガラクトサミン、ガラクトース、グルコサミン、N-アセチル-グルコサミン、グルコサミニトール、グルコース、グルコース-6-リン酸、グロース、グリセルアルデヒド、L-グリセロ-D-マンノ-ヘプトース、グリセロール、グリセロン、グロース、イドース、リキソース、マンノサミン、マンノース、マンノース-6-リン酸、プシコース、キノボース、キノボサミン、ラムニトール、ラムノサミン、ラムノース、リボース、リブロース、セドヘプツロース、ソルボース、タガトース、タロース、酒石酸、トレオース、キシロース、およびキシルロース等が挙げられる。
二糖、三糖、多糖としては、例えば、アベクオース、アクラボース、アミセトース、アミロペクチン、アミロース、アピオース、アルカノース、アスカリロース、アスコルビン酸、ボイビノース、セロビオース、セロトリオース、セルロース、カコトリオース、カルコース、キチン、コリトース、シクロデキストリン、シマロース、デキストリン、2-デオキシリボース、2-デオキシグルコース、ジギノース、ジギタロース、ジギトキソース、エバロース、エベミトロース(evemitrose)、フルクトオリゴ糖、ガルトオリゴ糖(galto-oligosaccharide)、ゲンチアノース、ゲンチオビオース、グルカン、グリコーゲン、ハマメロース、ヘパリン、イヌリン、イソレボグルコセノン、イソマルトース、イソマルトトリオース、イソパノース、コジビオース、ラクトース、ラクトサミン、ラクトースジアミン、ラミナラビオース、レボグルコサン、レボグルコセノン、β-マルトース、マルトリオース、マンナン-オリゴ糖、マンニノトリオース、メレチトース、メリビオース、ムラミン酸、ミカロース、ミシノース、ノイラミン酸、シアル酸含有糖鎖、ニゲロース、ノジリミシン、ノビオース、オレアンドロース、パノース、パラトース、プランテオース、プリメベロース、ラフィノース、ロジノース、ルチノース、サルメントース、セドヘプツロース、セドヘプツロサン、ソラトリオース、ソホロース、スタキオース、ストレプトース、スクロース、α,α-トレハロース、トラハロサミン、ツラノース、チベロース、キシロビオース、ウンベリフェロース等が挙げられる。
糖類は、デオキシ糖(アルコールヒドロキシ基を水素原子に置換したもの)、アミノ糖(アルコールヒドロキシ基をアミノ基に置換したもの)、チオ糖(アルコールヒドロキシ基をチオールに置換したもの、またはC=OをC=Sに置換したもの、または環酸素を硫黄に置換したもの)、セレノ糖、テルロ糖、アザ糖(環炭素を窒素に置換したもの)、イミノ糖(環酸素を窒素に置換したもの)、ホスファノ糖(環酸素をリンに置換したもの)、ホスファ糖(環炭素をリンに置換したもの)、C-置換単糖(非末端炭素原子における水素原子を炭素原子で置換したもの)、不飽和単糖、アルジトール(カルボニル基をCHOH基で置換したもの)、アルドン酸(アルデヒド基をカルボキシ基に置換したもの)、ケトアルドン酸、ウロン酸、アルダル酸等を含んでいてもよい。
単糖であるアミノ糖として、ガラクトサミン、グルコサミン、マンノサミン、フコサミン、キノボサミン、ノイラミン酸、ムラミン酸、ラクトースジアミン、アコサミン、バシロサミン、ダウノサミン、デソサミン、フォロサミン、ガロサミン、カノサミン、カンソサミン(kansosamine)、ミカミノース、ミコサミン、ペロサミン、プノイモサミン、プルプロサミン(purpurosamine)、ロドサミン等が挙げられる。また、アミノ糖のアミノ基は、アセチル基等で置換されていてもよい。
シアル酸含有糖鎖としては、NeuAcを糖鎖非還元末端に含有する糖鎖が挙げられ、具体的には、NeuAc-Gal-GlcNAcを含有する糖鎖や、Neu5Acα(2-6)Galβ(1-3)GlcNAc等が挙げられる。
糖類における各単糖は、標的細胞に発現している受容体に結合可能であることを限度として、置換基で置換されていてもよく、例えば、水酸基が置換されていてもよく、各単糖における水素原子がアジドおよび/または置換されていてもよいアリール基で1~複数置換されていてもよい。
ASGPRに対してより親和性の高い糖リガンドとして、例えばBioorganic Medicinal Chemistry, 17,7254 (2009)、およびJournal of American Chemical Society, 134, 1978 (2012)等に記載の糖誘導体が知られており、これらを用いてもよい。
S1とS2は、糖リガンドであるL1とL2と、ベンゼン環とを連結する構造であれば特に限定されるものではなく、核酸複合体において用いられる公知の構造を採用してもよい。S1とS2は、同一であってもよく、異なっていてもよい。
糖リガンドであるL1とL2は、S1およびS2とグリコシド結合により連結していることが好ましい。S1およびS2は、ベンゼン環と、例えば、-CO-、-NH-、-O-、-S-、-O-CO-、-S-CO-、-NH-CO-、-CO-O-、-CO-S-もしくは-CO-NH-結合によりそれぞれ連結していてもよい。
オリゴヌクレオチドであるXは、S3とホスホジエステル結合により連結していることが好ましい。S3は、ベンゼン環と、例えば、-CO-、-NH-、-O-、-S-、-O-CO-、-S-CO-、-NH-CO-、-CO-O-、-CO-S-もしくは-CO-NH-結合により連結していてもよい。
式2:
X、L1、L2およびS3は、それぞれ前記と同義であり、
P1、P2、P3、P4、P5およびP6、ならびにT1およびT2は、それぞれ独立して、存在しないか、または、-CO-、-NH-、-O-、-S-、-O-CO-、-S-CO-、-NH-CO-、-CO-O-、-CO-S-もしくは-CO-NH-であり、
Q1、Q2、Q3およびQ4は、それぞれ独立して、存在しないか、または、置換もしくは無置換の炭素数1~12のアルキレンまたは-(CH2CH2O)n-CH2CH2-であり、nは0~99の整数である。
P1またはP4が、例えば、-NH-CO-である場合、-NH-CO-ベンゼン環という部分構造を有する。
式3-1:
m5およびm6は、それぞれ独立して、0~10の整数であり、式3-1~式3-3の構造における末端の黒丸点は、それぞれ、B1またはB2あるいはP1またはP4との結合点である。
q1~q4が2~10のとき、それぞれの-[P2-Q1]-,-[Q2-P3]-,-[P5-Q3]-,-[Q4-P6]-の組み合わせは同一または異なっていてもよい。それぞれの-[P2-Q1]-,-[Q2-P3]-,-[P5-Q3]-,および-[Q4-P6]-の組み合わせが同一または異なるとは、-[P2-Q1]-,-[Q2-P3]-,-[P5-Q3]-,および-[Q4-P6]-で示される各2~10の単位が、同一である場合と異なる場合があることを意味する。
式4-1:
X、L1、L2、S3、P3、P6、T1、T2、Q2、Q4、q2およびq4はそれぞれ前記と同義である。
式5では、式2におけるP1とP4、P2とP5、P3とP6、Q1とQ3、Q2とQ4、B1とB2、T1とT2、L1とL2、p1とp2、q1とq3ならびにq2とq4がそれぞれ同一である。
式5:
X、S3、P1、P2、P3、Q1、Q2、B1、T1、L1、p1、q1およびq2はそれぞれ前記と同義である。
また、式5におけるX、S3、P1、P2、P3、Q1、Q2、B1、T1、L1、p1、q1およびq2は、各々、上述した好適な基であって良いが、P1が-CO-NH-、-NH-CO-または-O-であることが好ましい。
式5における-(P2-Q1)q1-は、存在しないか、または上記式3-1~式3-3で表されるいずれかの構造であることが好適である。
式6-1:
X、S3、P3、Q2、T1、L1およびq2は、それぞれ前記と同義である。
式7-1:
X、L1、L2およびS3は、それぞれ前記と同義である。L1とL2は同一であってもよく、異なっていてもよく、同一であることが好適である。
式7-1~式7-9において、各アルキレン基部分を鎖長の異なるアルキレン鎖を導入することにより、また、アミド結合等を他の結合に置換することにより、式7-1~式7-9で表される構造を有する核酸複合体以外の核酸誘導体を製造することもできる。
式11:
L1、L2、S1S2およびXは、それぞれ前記と同義であり、
P7およびP8は、それぞれ独立して、存在しないか、または、-CO-、-NH-、-O-、-S-、-O-CO-、-S-CO-、-NH-CO-、-CO-O-、-CO-S-もしくは-CO-NH-であり、
Q5、Q6およびQ7は、それぞれ独立して、存在しないか、または、置換もしくは無置換の炭素数1~12のアルキレンまたは-(CH2CH2O)n8-CH2CH2-であり、n8は0~99の整数であり、
B3は、本明細書中ではブランチャーユニットと呼ばれ、下記式11-1で表されるいずれかの構造であり、破線は、それぞれ、Q5およびQ6との結合手を意味する。
式11-1:
q5およびq6は、それぞれ独立して、0~10の整数である。
、-S-CO-、-NH-CO-、-CO-O-、-CO-S-もしくは-CO-NH-あるが、存在する場合、-CO-O-または-CO-NH-であることが好ましく、-CO-NH-であることがより好ましい。P8が、例えば、-CO-NH-である場合、Q6-CO-NH-という部分構造を有する。
式12-1:
X、L1、L2、S1およびS2は、それぞれ前記と同義であり、n1'~n12'はそれぞれ独立して、1~10の整数である。
二本鎖核酸領域内のヌクレオチドに対して、2'-修飾ヌクレオチドは、50~100%含まれることが好ましく、70~100%含まれることがより好ましく、90~100%含まれることがさらに好ましい。また、センス鎖のヌクレオチドに対して、2'-修飾ヌクレオチドは、20~100%含まれることが好ましく、40~100%含まれることがより好ましく、60%~100%含まれることがさらに好ましい。また、アンチセンス鎖のヌクレオチドに対して、2'-修飾ヌクレオチドは、20~100%含まれることが好ましく、40~100%含まれることがより好ましく、60~100%含まれることがさらに好ましい。
ヌクレオチド誘導体は、核酸内の他のヌクレオチドまたはヌクレオチド誘導体とアルキレン構造、ペプチド構造、ヌクレオチド構造、エーテル構造、エステル構造、およびこれらの少なくとも一つを組み合わせた構造等の架橋構造を形成してもよい。
また、「相補的」とは、一方のヌクレオチド配列が、他方のヌクレオチド配列と完全に相補する塩基配列において、1つまたは複数の塩基が付加および/または欠失した配列である場合を包含する意味である。例えば、APCS mRNAと本発明のアンチセンス鎖核酸とは、アンチセンス鎖における塩基の付加および/または欠失により、アンチセンス鎖および/または標的APCS mRNA領域に1個または2個のバルジ塩基を有してもよい。
い。
本発明におけるオリゴヌクレオチドは、2'-修飾ヌクレオチドを含む二本鎖核酸であってよく、表M1~表M3に記載のものが好ましく、1nM添加時のノックダウン活性の測定において、二本鎖核酸を加えていない条件に対して二本鎖核酸を加えた時のAPCSの相対的発現量が0.10以下であるものがより好ましい。
上記の好ましい二本鎖核酸と公知のリガンドリンカーを組み合わせた核酸複合体も本発明に含まれる。公知のリガンドリンカーとしては、例えば、国際公開第2009/073809号および国際公開第2013/075035号に開示されているものが挙げられる。
式1で表される核酸複合体は、固相合成によっても合成することができる。
式1で表される核酸複合体における、S1をリンカーとしたL1-ベンゼン環ユニットやS2をリンカーとしたL2-ベンゼン環ユニットの合成は、例えば、式2で表される核酸複合体を例として説明する。
式2で表される核酸複合体におけるL1-ベンゼン環ユニットやL2-ベンゼン環ユニットは、P1、P2、P3、P4、P5、およびP6ならびにT1およびT2により連結している。
P1、P2、P3、P4、P5、およびP6ならびにT1およびT2の-CO-、-NH-、-O-、-S-、-O-CO-、-S-CO-、-NH-CO-、-CO-O-、-CO-S-または-CO-NH-結合は、例えば、第4版実験化学講座19「有機化合物の合成I」丸善(1992年)、第4版実験化学講座20「有機化合物の合成II」、丸善(1992年)等に記載の結合反応の方法を参考にして、式2で表される構造を形成するのに適切な原料を選択することにより適宜合成することができる。
また、ベンゼン環から順次、Q1を部分構造として有する化合物、B1を部分構造として有する化合物を結合させることで、L1-ベンゼン環ユニットの部分構造を製造することができる。
L1とQ2を部分構造として有する化合物を別途合成し、L1とQ2を部分構造として有する化合物をベンゼン環、Q1およびB1を部分構造として有するL1-ベンゼン環ユニットの部分構造を有する化合物と結合させることにより、L1-ベンゼン環ユニット構造を製造することができる。
L2-ベンゼン環ユニットについても同様に、ベンゼン環から順次、Q3を部分構造として有する化合物、B2を部分構造として有する化合物を結合させることで、L2-ベンゼン環ユニットの部分構造を製造することができる。
L2とQ4を部分構造として有する化合物を別途合成し、L2とQ4を部分構造として有する化合物をベンゼン環、Q3およびB2を部分構造として有するL2-ベンゼン環ユニットの部分構造を有する化合物と結合させることにより、L2-ベンゼン環ユニット構造を製造することができる。
B1を部分構造として有する化合物、B2を部分構造として有する化合物としては、下記式2-1で表されるいずれかの構造を有し、各構造における末端の黒丸点において、それぞれ、水酸基、カルボキシル基、アミノ基、またはチオール基を有する化合物が挙げられる。
式2-1:
L2、Q4およびB2を部分構造として有する化合物を合成してから、Q3とベンゼン環を有する化合物と結合することにより、L2-ベンゼン環ユニット構造を製造してもよい。
本発明においては、[L1-T1-(Q2-P3)q2-]p1-B1-(P2-Q1)q1-P1-である部分構造と、[L2-T2-(Q3-P6)q4-]p2-B2-(P5-Q3)q3-P2-である部分構造とは同一または異なっていても良いが、同一であることが好ましい。
L3は、脱保護することにより、L1となる糖リガンド誘導体であれば特に限定されない。糖リガンドの置換基としては、糖質化学の分野で汎用される置換基であれば特に限定されないが、Ac基が好ましい。
式12で表される核酸複合体におけるX-ベンゼン環ユニットは、オリゴヌクレオチドの結合以外に、P7およびP8により表される結合を有する。
P7およびP8の-CO-、-NH-、-O-、-S-、-O-CO-、-S-CO-、-NH-CO-、-CO-O-、-CO-S-または-CO-NH-結合は、例えば、第4版実験化学講座19「有機化合物の合成I」丸善(1992年)、第4版実験化学講座20「有機化合物の合成II」、丸善(1992年)に記載の結合反応の方法を参考にして、式12で表される構造を形成するのに適切な原料を選択することにより適宜合成することができる。
また、ベンゼン環から順次、Q5を部分構造として有する化合物、B3を部分構造として有する化合物を結合させることで、X-ベンゼン環ユニットの部分構造を製造することができる。
具体的には、ベンゼン環およびQ5を部分構造として有するX-ベンゼン環ユニットの部分構造を有する化合物の末端にアジド基を有する場合を例にとると、実施例に開示するような末端結合性官能基化したオリゴヌクレオチドを反応させることにより、環化付加させて、トリアゾール環を形成させて、B3部分を構築することにより、X-ベンゼン環ユニット構造を製造することができる。
式8:
R1およびR2は、それぞれ独立して、水素原子、t-ブトキシカルボニル基(Boc基)、ベンジルオキシカルボニル基(Z基)、9-フルオレニルメチルオキシカルボニル基(Fmoc基)、-CO-R4、または-CO-B4-[(P9-Q8)q7-T3-L3]p3であり、
P9およびT3は、それぞれ独立して、存在しないか、または、-CO-、-NH-、-O-、-S-、-O-CO-、-S-CO-、-NH-CO-、-CO-O-、-CO-S-もしくは-CO-NH-であり、
Q8は、存在しないか、または、置換もしくは無置換の炭素数1~12のアルキレンまたは-(CH2CH2O)n1-CH2CH2-であり、n1は0~99の整数であり、
B4は、それぞれ独立して、結合手であるか、または、下記式8-1で表されるいずれかの構造であり、各構造における末端の黒丸点は、それぞれ、カルボニル基またはP9との結合点であり、m7、m8、m9およびm10は、それぞれ独立して、0~10の整数であり、
式8-1:
q7は、0~10の整数であり、
L3は、糖リガンドであり、
Yは-O-(CH2)m11-NH-および-NH-CO-(CH2)m12-NHであり、m11およびm12は、それぞれ独立して、1~10の整数であり、
R3は、水素原子、t-ブトキシカルボニル基、ベンジルオキシカルボニル基、9-フルオレニルメチルオキシカルボニル基、-CO-R4、-CO-(CH2CH2O)n2-CH2CH2-N3、または-CO-Q9-B5-(Q10-P10)q8-X1あり、n2は0~99の整数であり、
P10は、存在しないか、または、-CO-、-NH-、-O-、-S-、-O-CO-、-S-CO-、-NH-CO-、-CO-O-、-CO-S-もしくは-CO-NH-であり、
Q9およびQ10は、それぞれ独立して、存在しないか、または、置換もしくは無置換の炭素数1~12のアルキレンまたは-(CH2CH2O)n3-CH2CH2-であり、n3は0~99の整数であり、
B5は、下記式8-2で表されるいずれかの構造であり、破線において、それぞれ、Q9およびQ10との結合手を意味し、
式8-2:
q8は、0~10の整数であり、
X1は、水素原子または固相担体であり、
R4は、t-ブトキシカルボニル基、ベンジルオキシカルボニル基、9-フルオレニルメチルオキシカルボニル基で置換もしくは無置換のアミノ基、カルボキシ基、マレイミド基、およびアラルキルオキシカルボニル基からなる群から選択される1または2個の置換基で置換された炭素数2~10のアルキル基である。)
R5およびR6は、それぞれ独立して、水素原子、t-ブトキシカルボニル基、ベンジルオキシカルボニル基、9-フルオレニルメチルオキシカルボニル基、-CO-R4'、または-CO-Q11-(P11-Q11')q9-T4-L4であり、
P11およびT4は、それぞれ独立して、存在しないか、または、-CO-、-NH-、-O-、-S-、-O-CO-、-S-CO-、-NH-CO-、-CO-O-、-CO-S-もしくは-CO-NH-であり、
Q11およびQ11'は、存在しないか、または、置換もしくは無置換の炭素数1~12のアルキレンまたは-(CH2CH2O)n4-CH2CH2-であり、n4は0~99の整数であり、
q9は、0~10の整数であり、
L4は、糖リガンドであり、
Y'は-O-(CH2)m11'-NH-および-NH-CO-(CH2)m12'-NHであり、m11'およびm12'は、それぞれ独立して、1~10の整数であり、
R3'は、水素原子、t-ブトキシカルボニル基、ベンジルオキシカルボニル基、9-フルオレニルメチルオキシカルボニル基、-CO-R4'、-CO-(CH2CH2O)n2'-CH2CH2-N3、または-CO-Q9'-B5'-(Q10'-P10')q8'-X1'であり、n2'は0~99の整数であり、
P10'は、存在しないか、または、-CO-、-NH-、-O-、-S-、-O-CO-、-S-CO-、-NH-CO-、-CO-O-、-CO-S-もしくは-CO-NH-であり、
Q9'およびQ10'は、それぞれ独立して、存在しないか、または、置換もしくは無置換の炭素数1~12のアルキレンまたは-(CH2CH2O)n3'-CH2CH2-であり、n3'は0~99の整数であり、
B5'は、下記式9-1で表されるいずれかの構造であり、破線において、それぞれ、Q9'およびQ10'との結合手を意味し、
式9-1:
q8'は、0~10の整数であり、
X1'は、水素原子または固相担体であり、
R4'は、t-ブトキシカルボニル基、ベンジルオキシカルボニル基、9-フルオレニルメチルオキシカルボニル基で置換もしくは無置換のアミノ基、カルボキシ基、マレイミド基、およびアラルキルオキシカルボニル基からなる群から選択される1または2個の置換基で置換された炭素数2~10のアルキル基である。)
R7およびR8は、それぞれ独立して、ヒドロキシ基、t-ブトキシ基、ベンジルオキシ基、-NH-R10、または-NH-Q12-(P12-Q12')q10-T4-L4であり、
P12およびT4は、それぞれ独立して、存在しないか、または、-CO-、-NH-、-O-、-S-、-O-CO-、-S-CO-、-NH-CO-、-CO-O-、-CO-S-もしくは-CO-NH-であり、
Q12およびQ12'は、存在しないか、または、置換もしくは無置換の炭素数1~12のアルキレンまたは-(CH2CH2O)n2-CH2CH2-であり、n2は0~99の整数であり、
L4は、糖リガンドであり、
Y2は-O-(CH2)m9-NH-および-NH-CO-(CH2)m10-NHであり、m9、m10は、それぞれ独立して、1~10の整数であり、
q10は、0~10の整数であり、
R9は、水素原子、t-ブトキシカルボニル基、ベンジルオキシカルボニル基、9-フルオレニルメチルオキシカルボニル基、-CO-R10、-CO-(CH2CH2O)n6-CH2CH2-N3、または-CO-Q13-B6-(Q14-P13)q11-X2であり、n6は0~99の整数であり、
P13は、存在しないか、または、-CO-、-NH-、-O-、-S-、-O-CO-、-S-CO-、-NH-CO-、-CO-O-、-CO-S-もしくは-CO-NH-であり、
Q13およびQ14は、それぞれ独立して、存在しないか、または、置換もしくは無置換の炭素数1~12のアルキレンまたは-(CH2CH2O)n7-CH2CH2-であり、n7は0~99の整数であり、
B6は、下記式10-1で表されるいずれかの構造であり、破線において、それぞれ、Q13およびQ14との結合手を意味し、
式10-1:
q11は、0~10の整数であり、
X2は、水素原子または固相担体であり、
R10は、t-ブトキシカルボニル基、ベンジルオキシカルボニル基、9-フルオレニルメチルオキシカルボニル基で置換もしくは無置換のアミノ基、カルボキシ基、マレイミド基、およびアラルキルオキシカルボニル基からなる群から選択される1または2個の置換基で置換された炭素数2~10のアルキル基である。)
本発明における核酸誘導体は、式(I')で表される部分構造を有する化合物の製造方法として、その製造方法を例示することができる。
化合物(I-B)は、化合物(I-A)とp,p'-ジメトキシトリチルクロリドを、ピリジン等の溶媒中、必要に応じて共溶媒の存在下、0℃と100℃の間の温度で、5分間~100時間反応させることにより製造することができる。
共溶媒としては、例えばメタノール、エタノール、ジクロロメタン、クロロホルム、1,2-ジクロロエタン、トルエン、酢酸エチル、アセトニトリル、ジエチルエーテル、テトラヒドロフラン、1,2-ジメトキシエタン、ジオキサン、N,N-ジメチルホルムアミド(DMF)、N,N-ジメチルアセトアミド、N-メチルピロリドン、ピリジン、水等があげられ、これらは単独でまたは混合して用いられる。
化合物(I-C)は、化合物(I-B)を、無溶媒でまたは溶媒中、1~1000当量の2級アミン存在下、室温と200℃の間の温度で、5分間~100時間反応させることにより製造することができる。
溶媒としては、例えばメタノール、エタノール、ジクロロメタン、クロロホルム、1,2-ジクロロエタン、トルエン、酢酸エチル、アセトニトリル、ジエチルエーテル、テトラヒドロフラン、1,2-ジメトキシエタン、ジオキサン、N,N-ジメチルホルムアミド(DMF)、N,N-ジメチルアセトアミド、N-メチルピロリドン、ピリジン、水等があげられ、これらは単独でまたは混合して用いられる。
2級アミンとしては、例えばジエチルアミン、ピペリジン等が挙げられる。
化合物(1-E)は、化合物(I-C)と化合物(I-D)を、無溶媒でまたは溶媒中、1~30当量の塩基、縮合剤および必要に応じて0.01~30当量の添加剤の存在下、室温と200℃の間の温度で、5分間~100時間反応させることにより製造することができる。
溶媒としては、工程2で例示したものが挙げられる。
塩基としては、例えば炭酸セシウム、炭酸カリウム、水酸化カリウム、水酸化ナトリウム、ナトリウムメトキシド、カリウム tert-ブトキシド、トリエチルアミン、ジイソプロピルエチルアミン、N-メチルモルホリン、ピリジン、1,8-ジアザビシクロ[5.4.0]-7-ウンデセン(DBU)、N,N-ジメチル-4-アミノピリジン(DMAP)等が挙げられる。
縮合剤としては、例えば1,3-ジシクロヘキサンカルボジイミド(DCC)、1-エチル-3-(3-ジメチルアミノプロピル)カルボジイミド・塩酸塩(EDC)、カルボニルジイミダゾール、ベンゾトリアゾール-1-イルオキシトリス(ジメチルアミノ)ホスホニウムヘキサフルホロホスファート、(ベンゾトリアゾール-1-イルオキシ)トリピロリジノホスホニウム ヘキサフルオロホスファート、O-(7-アザベンゾトリアゾール-1-イル)-N,N,N',N'-テトラメチルウロニウム ヘキサフルオロホスファート(HATU)、O-(ベンゾトリアゾール-1-イル)-N,N,N',N'-テトラメチルウロニウム ヘキサフルオロホスファート(HBTU)、ヨウ化 2-クロロ-1-メチルピリジニウム等が挙げられる。
添加剤としては、例えば1-ヒドロキシベンゾトリアゾール(HOBt)、4-ジメチルアミノピリジン(DMAP)等が挙げられる。
化合物(I-D)は、公知の方法(例えば、Journal of American Chemical Society, 136, 16958, (2014)を参照)もしくはそれに準じた方法で得ることができる。
化合物(I-F)は、化合物(I-E)とコハク酸無水物を、溶媒中、1~30当量の塩基存在下、室温と200℃の間の温度で、5分間~100時間反応させることにより製造することができる。
化合物(I-G)は、化合物(I-F)と末端がアミノ化された固相担体とを、無溶媒でまたは溶媒中、1~30当量の塩基、縮合剤および必要に応じて0.01~30当量の添加剤の存在下、室温と200℃の間の温度で、5分間~100時間反応した後、無水酢酸/ピリジン溶液と室温と200℃の間の温度で5分間~100時間反応させることにより製造することができる。
溶媒としては、工程2で例示したものが挙げられる。
塩基、縮合剤および添加剤としては、それぞれ工程3で例示したものがあげられる。
アミノ化された固相担体としては、例えば長鎖アルキルアミン細孔性ガラス(LCAA-CPG)等 があげられ、これらは市販品として得ることができる。
式(I')で表される糖リガンド-テザー-ブランチャーユニットを有する核酸複合体は、化合物(I-G)を用い、公知のオリゴヌクレオチド化学合成法で対応するヌクレオチド鎖を伸長した後に、固相からの脱離、保護基の脱保護および精製を行うことで製造することができる。
本発明における核酸誘導体は、式(II')で表される部分構造を有する化合物の製造方法として、その製造方法を例示することができる。
化合物(II-A)は、化合物(I-A)、t-ブチルジメチルシリルクロリドおよびジメチルアミノピリジンをN,N-ジメチルホルムアミド(DMF)等の溶媒中、好ましくは2等量の塩基の存在下、0℃~100℃の間の温度で、5分間~100時間反応させることにより製造することができる。
塩基としては、製造方法1の工程3で例示したものが挙げられる。
化合物(II-B)は、化合物(II-A)を用い、製造方法1の工程1と同様の条件にて製造することができる。
化合物(II-C)は、化合物(II-B)とフッ化n-テトラブチルアンモニウム(TBAF)を、溶媒中、室温と200℃の間の温度で、5分間~100時間反応させることにより製造することができる。
溶媒としては、工程2で例示したものが挙げられる。
化合物(II-D)は、化合物(II-C)を用い、製造方法1の工程2と同様の条件にて製造することができる。
化合物(II-E)は、化合物(II-D)および化合物(I-D)を用い、製造方法1の工程3と同様の条件にて製造することができる。
化合物(II')は、化合物(II-E)を用い、製造方法1の工程4~工程6と同様の条件にて製造することができる。
本発明における核酸誘導体は、式(III')で表される部分構造を有する化合物の製造方法として、その製造方法を例示することができる。
化合物(III-B)は、化合物(III-A)を用い、製造法1の工程1と同様の条件にて製造することができる。
化合物(III-A)は市販品として購入することができる。
化合物(III-C)は、化合物(III-B)を用い、製造法1の工程2と同様の条件にて製造することができる。
化合物(III-E)は、化合物(III-C)を用い、製造法1の工程3と同様の条件にて製造することができる。
化合物(III')は、化合物(III-E)を用い、製造方法1の工程4~工程6と同様の条件にて製造することができる。
本発明における核酸誘導体は、式(IV')で表される部分構造を有する化合物の製造方法として、その製造方法を例示することができる。
本発明における核酸誘導体は、式(V')で表される部分構造を有する化合物の製造方法として、その製造方法を例示することができる。
オリゴヌクレオチドの5'末端に糖リガンド-テザー-ブランチャーユニットが結合した、本発明の核酸複合体の製造方法を以下に例示する。
化合物(I-H)は、化合物(II-E)と2-シアノエチル-N,N,N',N'-テトライソプロピルホスホジアミダイトを、無溶媒でまたは溶媒中、塩基および反応促進剤共存下、室温と200℃の間の温度で、5分間~100時間反応させることにより製造することができる。
溶媒としては、製造方法1の工程2で例示したものがあげられる。
塩基としては、製造方法1の工程3で例示したものがあげられる。
反応促進剤としては、例えば、1H-テトラゾール、4,5-ジシアノイミダゾール、5-エチルチオテトラゾール、5-ベンジルチオテトラゾール等があげられ、市販品として購入できる。
オリゴヌクレオチド鎖を伸長し、最後に化合物(I-H)を用い、オリゴヌクレオチド
の5'末端を糖リガンド-テザー-ブランチャーユニットで修飾した後、固相からの脱離保護基の脱保護および精製を行うことにより、化合物(I'')を製造することができる。ここで、固相からの脱離、保護基の脱保護および精製は、それぞれ製造方法1の工程7と同様にして製造できる。
オリゴヌクレオチドの5'末端に糖リガンド-テザー-ブランチャーユニットが結合した、本発明の核酸複合体の製造方法を以下に例示する。
オリゴヌクレオチドの5'末端に糖リガンド-テザー-ブランチャーユニットが結合した、本発明の核酸複合体の製造方法を以下に例示する。
オリゴヌクレオチドの5'末端に糖リガンド-テザー-ブランチャーユニットが結合した、本発明の核酸複合体の製造方法を以下に例示する。
オリゴヌクレオチドの5'末端に糖リガンド-テザー-ブランチャーユニットが結合した、本発明の核酸複合体の製造方法を以下に例示する。
二本鎖核酸を構成するセンス鎖の3末端'または5'末端に糖リガンド-テザー-ブランチャーユニットを有するセンス鎖と、二本鎖核酸を構成するアンチセンス鎖とを、水または適当な緩衝液にそれぞれ溶解し、混合することにより二本鎖核酸を有する核酸複合体を得ることができる。
緩衝液としては、例えば酢酸緩衝液、トリス緩衝液、クエン酸緩衝液、リン酸緩衝液、水等が挙げられ、これらを単独または混合して用いられる。
本発明における核酸誘導体は、式(VI')で表される部分構造を有する化合物の製造方法として、その製造方法を例示することができる。
化合物(VI-B)は化合物(VI-A)を用い、製造方法1の工程1と同様の条件にて製造することができる。
化合物(VI-A)は市販品として、または公知の方法(例えばバイオオーガニック・アンド・メディシナル・ケミストリー・レターズ,第11巻,383-386頁)もしくはそれに準じた方法で得ることができる。
化合物(VI-C)は化合物(VI-B)を用い、製造方法1の工程2と同様の条件にて製造することができる。
化合物(VI-D)は化合物(VI-C)を用い、製造方法1の工程3と同様の条件にて製造することができる。
化合物(VI-E)は化合物(VI-D)を用い、製造方法1の工程2と同様の条件にて製造することができる。
化合物(VI-G)は化合物(VI-E)と化合物(VI-F)とを用い、製造方法1の工程3と同様の条件にて製造することができる。
化合物(VI-H)は化合物(VI-G)を用い、製造方法2の工程9と同様の条件にて製造することができる。
化合物(VI')は化合物(VI-H)、化合物(VI-I)および化合物(VI-J)を用い、製造方法1の工程4~6と同様の条件にて製造することができる。
化合物(VI-F)は公知の方法(例えば、ジャーナル・オブ・アメリカン・ケミカル・ソサイエティ(Journal of American Chemical Society), 136巻, 16958貢, 2014年記載の方法)、またはそれに準じた方法で得ることができる。
式2においてP1およびP4が-NH-CO-、-O-CO-または-S-CO-である、糖リガンド-テザーーユニットは以下の方法で製造することができる。
式:
化合物(VII-C)は、化合物(VII-A)と化合物(VII-B)を、テトロヒドロフラン等の溶媒中、トリフェニルホスフィンポリマー担持体を加え、氷冷下、ジイソプロピルアゾジカルボキシレートトルエン溶液を反応させることにより製造することができる。
溶媒としては製造工程1の工程2で例示したものが挙げられる。
化合物(VII-A)は市販品として得ることができる。
化合物(VII-D)は化合物(VII-C)を用い、メタノール等の溶媒中、氷冷下、塩基の存在下、反応させることにより製造することができる。
溶媒としては、製造工程1の工程2で例示したものが挙げられる。
塩基としては、製造工程1の工程3で例示したものが挙げられる。
化合物(VII-F)は化合物(VII-D)および化合物(VII-E)を用い、製造工程1の工程3と同様の条件で製造することができる。
化合物(VII-H)は化合物(VII-F)および化合物(VII-G)を用い、製造工程1の工程3と同様の条件で製造することができる。
化合物(VII-J)は化合物(VII-H)および化合物(VII-I)を用い、製造工程1の工程3と同様の条件で製造することができる。
また、下記工程DP1と工程58を繰り返し行うことで、望みのq1の値をもつ化合物(VII-J)を製造することができる。
化合物(VII-L)は化合物(VII-J)および化合物(VII-K)を用い、製造工程1の工程3と同様の条件で製造することができる。
化合物(VII-N)は化合物(VII-L)および化合物(VII-M)を用い、製造工程1の工程3と同様の条件で製造することができる。
化合物(VII')は化合物(VII-O)、化合物(VII-P)および化合物 (VII-Q)を用い、製造工程1の工程3と同様の条件で製造することができる。
また、下記工程DP1と工程61を繰り返し行うことで、望みのq3の値をもつ化合物(VII')を製造することができる。
有機合成化学で常用される方法[例えば、プロテクティブ・グループス・イン・オーガニック・シンセシス第3版(Protective Groups in Organic Synthesis, third edition)、グリーン(T.W.Greene)著、John Wiley&Sons Inc.(1999年)等に記載の方法等]を適切に用いることで所望の化合物を製造することができる。
化合物(VII-B)、化合物(VII-E)、化合物(VII-G)、化合物(VII-I)、化合物(VII-K)、化合物(VII-M)、化合物(VII-O)、化合物(VII-P)および化合物(VII-Q)は市販品として、または「実験化学講座第4版 有機合成、p. 258、丸善(1992年)」、「March's Advanced Organic Chemistry: Reactions, Mechanisms, and Structure, 7th Edition」に記載の方法を組み合わせること、もしくはそれに準じた方法で得ることができる。
式4においてP7が-O-である、ユニットは以下の方法で製造することができる。
化合物(VIII-C)は化合物(VIII-A)および化合物(VIII-B)を用い、製造工程1の工程3と同様の条件で製造することができる。
また、下記工程DP2と工程64を繰り返し行うことで、望みのq5''の値をもつ化合物(VIII-C)を製造することができる。化合物(VIII-B)は市販品として、または「実験化学講座第4版 有機合成、p. 258、丸善(1992年)」、「March's Advanced Organic Chemistry: Reactions, Mechanisms, and Structure, 7th Edition」に記載の方法を組み合わせること、もしくはそれに準じた方法で得ることができる。
化合物(VIII')は化合物(VIII-C)および化合物(VIII-D)を用い、製造工程1の工程3と同様の条件で製造することができる。
化合物(VIII-D)は市販品として、または「実験化学講座第4版 有機合成、p. 258、丸善(1992年)」、「March's Advanced Organic Chemistry: Reactions, Mechanisms, and Structure, 7th Edition」に記載の方法を組み合わせること、もしくはそれに準じた方法で得ることができる。
有機合成化学で常用される方法[例えば、プロテクティブ・グループス・イン・オーガニック・シンセシス第3版(Protective Groups in Organic Synthesis, third edition)、グリーン(T.W.Greene)著、John Wiley&Sons Inc.(1999年)等に記載の方法等]を適切に用いることで所望の化合物を製造することができる。
式2においてP1およびP4が-O-である、糖リガンド-テザーユニットは以下の方法で製造することができる。
q1、q2、q3、q4、q2'、q4' 、Z、B1'、B2'はそれぞれ前記と同義であり、PG10、PG11、PG12、PG13、PG14およびPG15はそれぞれ適切保護基を表す)
式:
化合物(IX-C)は化合物(IX-A)と化合物(IX-B)をN,N'-ジメチルホルムアミドな等の溶媒に溶解し、炭酸水素カリウム等の塩基を加えて、室温~200℃にて5分間~100時間反応させることにより製造することができる。
溶媒としては、製造工程1の工程2に例示したものが挙げられる。
塩基としては、製造工程1の工程3で例示したものが挙げられる。
化合物(IX-E)は化合物化合物(IX-C)と化合物(IX-D)をN, N'-ジメチルホルムアミド等の溶媒に溶解し、炭酸水素カリウム等の塩基を加えて、室温~200℃で5分間~100時間反応させることにより製造することができる。
溶媒としては、製造工程1の工程2で例示したものが挙げられる。
塩基としては、製造工程1の工程3で例示したものが挙げられる。
化合物(IX-A)は市販品として得ることができる。
化合物(IX-G)は化合物(IX-E)および化合物(IX-F)を用い、製造工程1の工程3と同様の条件で製造することができる。
化合物(IX-I)は化合物(IX-G)および化合物(IX-H)を用い、製造工程1の工程3と同様の条件で製造することができる。
また、工程DPと工程69を繰り返し行うことで、望みのq1の値をもつ化合物(VII-J)を製造することができる。
化合物(IX-K)は化合物(IX-I)および化合物(IX-J)を用い、製造工程1の工程3と同様の条件で製造することができる。
化合物(IX-M)は化合物(IX-K)および化合物(IX-L)を用い、製造工程1の工程3と同様の条件で製造することができる。
化合物(IX')は化合物(IX-M), 化合物(IX-N), 化合物(IX-O)および化合物(IX-P)を用い、製造工程1の工程3と同様の条件で製造することができる。
また、下記工程DP3と工程72を繰り返し行うことで、望みのq3の値をもつ化合物(IX')を製造することができる。
有機合成化学で常用される方法[例えば、プロテクティブ・グループス・イン・オーガニック・シンセシス第3版(Protective Groups in Organic Synthesis, third edition)、グリーン(T.W.Greene)著、John Wiley&Sons Inc.(1999年)等に記載の方法等]を適切に用いることで所望の化合物を製造することができる。
式1~式8の核酸複合体の製造方法として、以下の方法も用いることができる。
化合物(X-B)は化合物(XIII'')と化合物(X-A)を溶媒中、0℃~100℃で10秒間~100時間反応させることにより製造することができる。
溶媒としては水、リン酸緩衝液、酢酸ナトリウム緩衝液、ジメチルスルホキシド等があげられ、これらは単独でまたは混合して用いられる。
化合物(VIII')は製造法14を用いることで、得ることができる。
化合物(X')は化合物(X-B)を用いて炭酸ナトリウム水溶液またはアンモニア水中等pH8以上の条件下、室温と200℃の間の温度で、5分間~100時間反応させる事により製造することができる。
式1~式8の核酸複合体の製造方法として、以下の方法も用いることができる。
化合物(XI-A)は化合物(VIII'')を用いて、公知の方法(例えばバイオコンジュゲート・ケミストリー(Bioconjugate Chemistry), 第26巻, 1451-1455頁, 2015年に記載の方法)またはそれに準じた方法で得ることができる。
化合物(VIII''')は製造法14を用いることで、得ることができる。
化合物(XI')は化合物(XI-A)と化合物(XI-B)を用いて、公知の方法(例えばバイオコンジュゲート・ケミストリー(Bioconjugate Chemistry), 第26巻, 1451-1455頁, 2015年に記載の方法)またはそれに準じた方法で得ることができる。
化合物(XI-B)はバイオコンジュゲート・ケミストリー(Bioconjugate Chemistry), 第26巻, 1451-1455頁, 2015年に記載の方法)またはそれに準じた方法で得ることができる。
また別の方法として、化合物(XI')は、公知の方法(例えばバイオコンジュゲートケミストリー(Bioconjugate Chemistry), 第22巻,1723-1728頁, 2011年を参照)あるいははそれに準じた方法で、化合物(XI-A)から直接得ることができる。
本発明の核酸複合体は、哺乳動物に投与して、生体内において、標的遺伝子の発現を低下または停止させることで抑制し、標的遺伝子に関連する疾患の治療に用いることができる。
本発明の核酸複合体を治療剤または予防剤として使用する場合、投与経路としては、治療に際し最も効果的な投与経路を使用するのが望ましく、特に限定されるものではないが、例えば、静脈内投与、皮下投与、筋肉内投与等が挙げられ、好ましくは皮下投与である。
投与量は、投与対象の病状や年齢、投与経路等によって異なるが、例えば二本鎖のオリゴヌクレオチドに換算した1日投与量が0.1μg~1000 mgとなるように投与すればよく、1日投与量が1~100 mgとなるように投与することがより好ましい。
注射剤の場合、液剤または溶媒を除去または凍結乾燥した組成物に、例えば水、酸、アルカリ、種々の緩衝液、生理食塩水またはアミノ酸輸液等を混合して注射剤を調製することが好ましい。また、例えばクエン酸、アスコルビン酸、システインもしくはEDTA等の抗酸化剤、またはグリセリン、ブドウ糖もしくは塩化ナトリウム等の等張化剤等を添加して注射剤を調製することも可能である。また、例えばグリセリン等の凍結保存剤を加えて凍結保存することもできる。
UPLC分析は以下の条件を用いた。
移動相A: 0.1%ギ酸含有水溶液、B: アセトニトリル溶液
グラジエント: 移動相Bが10%-90%のリニアグラジエント(3分間)
カラム: Waters社製ACQUITY UPLC BEH C18 (1.7 μm、内経 2.1 x 50 mm)
流速: 0.8 mL/min
PDA検出波長: 254 nm (検出範囲190-800 nm)
参考例1工程1
ジャーナル・オブ・アメリカン・ケミカル・ソサイエティー (Journal of American Chemical Society), 第136巻, 16958-16961頁, 2014年に記載された方法で合成した化合物RE1-1 (0.8755 g, 1.9567 mmol)をテトラヒドロフラン (10 mL)に溶解し、1, 3-ジシクロヘキサンカルボジイミド(DCC, 0.4247 g, 2.0584 mmol)とN-ヒドロキシスクシミド (0.2412 g, 2.0958 mmol)を加え室温にて一晩撹拌した。反応混合物から析出した固体を除き、減圧下、溶媒を留去した。得られた混合物をN, N'-ジメチルホルムアミド (DMF)に溶解し、2-アミノエチルマレイミド臭酸塩 (0.6479 g, 2.5491 mmol)とジイソプロピルエチルアミン (1.7 mL, 9.7835 mmol)を加えた後、室温で一晩撹拌した。減圧下、反応液の溶媒を留去し、逆相カラムクロマトグラフィー (水/メタノール=80/20)で溶出させることにより、化合物RE1-2 (0.8502 g, 収率76%)を得た。
ESI-MS m/z: 570 (M + H)+;
1H-NMR (DMSO-D6) δ: 1.45-1.56 (4H, m), 1.78 (3H, s), 1.90 (3H, s), 1.97 (2H, t, J = 7.0 Hz), 2.00 (3H, s), 2.11 (3H, s), 3.18-3.19 (2H, m), 3.38-3.45 (3H, m), 3.64-3.71 (1H, m), 3.85-3.89 (1H, m), 4.01-4.04 (3H, m), 4.48 (1H, d, J = 8.6 Hz), 4.95-4.98 (1H, m), 5.21 (1H, d, J = 3.5 Hz), 6.99 (2H, s), 7.81-7.87 (2H, m).
参考例1工程2
化合物RE1-1 (0.9602 g, 2.1460 mmol)をN,N'-ジメチルホルムアミド (10 mL)に溶解し、N-Boc-エチレンジアミン (シグマアルドリッチ社製, 0.6877 g, 4.292 mmol)、ジイソプロピルエチルアミン (1.90 mL, 10.87 mmol)、および2-(1H-ベンゾトリアゾール-1-イル)-1,1,3,3-テトラメチルウロニウム ヘキサフルオロリン酸塩 (和光純薬工業社製, 1.6437 g, 4.3229 mmol)を加えて、室温にて終夜攪拌した。反応液に水を加え、クロロホルムで2回抽出した後、有機層を飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥した。減圧下、溶媒を留去し、化合物RE1-3の粗精製物を得た。
ESI-MS m/z: 590 (M + H)+
化合物RE1-4の合成工程1で合成した化合物RE1-3 (1.2654 g, 2.1460 mmol)をジクロロメタン (15 mL)に溶解し、トリフルオロ酢酸 (4 mL)を加えて、室温にて一晩攪拌した。反応液に水を加え、酢酸エチルで抽出した後、有機層を飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥した。減圧下、溶媒を留去し、逆相カラムクロマトグラフィー (水/メタノール=80/20)で溶出させることにより、化合物RE1-4 (0.3879 g, 収率37 %)を得た。
ESI-MS m/z: 490 (M + H)+;
1H-NMR (DMSO-D6) δ: 1.46-1.52 (4H, m), 1.78 (3H, s), 1.90 (3H, s), 2.00 (3H, s), 2.08 (2H, t, J = 7.4 Hz), 2.11 (3H, s), 2.85 (2H, t, J = 6.3 Hz), 3.27 (2H, dd, J = 12.3, 6.2 Hz), 3.67-3.69 (1H, m), 3.68-3.73 (1H, m), 3.86-3.90 (1H, m), 4.01-4.04 (3H, m), 4.49 (1H, d, J = 8.4 Hz), 4.97 (1H, dd, J = 11.3, 3.4 Hz), 5.22 (1H, d, J = 3.5 Hz), 7.86 (1H, d, J = 9.1 Hz), 7.95-8.02 (1H, m).
(9H-フルオレン-9-イル)メチル((2R,3R)-1,3-ジヒドロキシブタン-2-イル)カルバマート (化合物RE2-1, Chem-Impex International, Inc社製, 1.50 g, 4.58 mmol)をピリジン (20 mL)に溶解し、氷冷下、4,4'-ジメトキシトリチルクロライド (東京化成工業社製, 1.71 g, 5.04 mmol)を加えた後、室温にて2時間攪拌した。反応液を氷冷し、10%クエン酸水溶液を加え、酢酸エチルで抽出した後、有機層を飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー (ヘキサン/酢酸エチル=90/10)で精製することにより、化合物RE2-2 (1.07 g, 収率37%)を得た。
ESI-MS m/z: 630 (M + H)+
参考例2工程1で合成した化合物RE2-2 (1.07 g, 1.699 mmol)をN,N-ジメチルホルムアミド (10 mL)に溶解し、室温にてピペリジン (0.336 mL, 3.40 mmol)を加えて3時間攪拌した。反応液に水を加え、酢酸エチルで抽出した後、有機層を飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥した。減圧下、溶媒を留去し、残渣をアミノシリカゲルカラムクロマトグラフィー (クロロホルム/メタノール=90/10)で精製することにより、化合物RE2-3 (0.59 g, 収率85 %)を得た。
ESI-MS m/z: 408 (M + H)+
5-ヒドロキシイソフタル酸ジメチル (化合物RE3-1, 和光純薬工業社製, 5.0443 g, 24 mmol)をテトラヒドロフラン (和光純薬工業社製25 mL)に溶解し、2-(tert-ブトキシカルボニルアミノ)-1-エタノール (東京化成工業社製, 4.0343 g, 25.03 mmol)、およびトリフェニルホスフィン ポリマー担持体 (シグマアルドリッチ社製, 6.61 g, 25.2 mmol)を加えた後、氷冷下、40%ジイソプロピルアゾジカルボキシレート(DIAD)トルエン溶液 (東京化成工業社製, 13.26 mL, 25.2 mmol)を加え、室温にて一晩攪拌した。反応液をろ過し、減圧下、ろ液を留去した後、残渣をアミノシリカゲルカラムクロマトグラフィー (ヘキサン/酢酸エチル=95/5~80/20)で精製することにより、化合物RE3-2 (5.3071 g, 収率63%)を得た。
ESI-MS m/z: 254 (M + H)+, 脱Boc体として検出
参考例3工程1で合成した化合物RE3-2 (5.3071 g, 15.02 mmol)をメタノール (25 mL)に溶解し、氷冷下、2mol/L水酸化ナトリウム水溶液 (和光純薬工業社製, 13 mL)を加え、室温にて4時間攪拌した。反応液を氷冷し、10%クエン酸水溶液を加え、酢酸エチルで抽出した後、有機層を飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥した。減圧下、溶媒を留去することにより、化合物RE3-3を定量的に得た。
ESI-MS m/z: 324 (M - H)-
参考例3工程2で合成した化合物RE3-3 (1.9296 g, 5.93 mmol)をN, N'-ジメチルホルムアミド (70 mL)に溶解し、N-1-(9H-フルオレン-9-イルメトキシカルボニル)-エチレンジアミン塩酸塩 (3.3493 g, 11.86 mmol)、ジイソプロピルエチルアミン (5.18 mL, 29.7 mmol)、および2-(1H-ベンゾトリアゾール-1-イル)-1,1,3,3-テトラメチルウロニウムヘキサフルオロリン酸塩 (4.5168 g, 11.88 mmol)を加えて、室温にて4時間攪拌した。反応液を氷冷し、10%クエン酸水溶液を加え、クロロホルムで抽出した後、有機層を飽和炭酸水素ナトリウム水溶液および飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー (クロロホルム/メタノール)で精製することにより、化合物RE3-4 (3.4407 g, 収率68%)を得た。
ESI-MS m/z: 898 (M + HCOO)-
参考例3工程3で合成した化合物RE3-4 (1.6087 g, 1.884 mmol)をジクロロメタン (20 mL)に溶解し、氷冷下、トリフルオロ酢酸 (5mL, 64.9 mmol)を加えて、室温にて4時間攪拌した。反応液を減圧下、溶媒を留去することにより、化合物RE3-5 (2.4079 g)を定量的に得た。
ESI-MS m/z: 798(M + HCOO)-
参考例3工程4で合成した化合物RE3-5 (386 mg, 0.512 mmol)をテトラヒドロフラン (10 mL)に溶解し、氷冷下、塩化ベンゾイル (175 mg, 1.024 mmol)を加えて、室温にて1時間攪拌した。反応液を減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー(クロロホルム/メタノール)で精製することにより、化合物RE3-6 (373 mg, 収率82%)を得た。
ESI-MS m/z: 888(M + H)+
参考例3工程5で合成した化合物RE3-6 (108 mg, 0.122 mmol)をジクロロメタン (5 mL)に溶解し、室温にてジエチルアミン (0.5 mL,4.8 mmol)を加えて1時間攪拌した。減圧下、溶媒を留去することにより、化合物RE3-7 (54.9 mg)を定量的に得た。
ESI-MS m/z: 444(M + H)+
参考例3工程6で合成した化合物RE3-7 (180 mg, 0.406 mmol)、Nα,Nε-ビス(tert-ブトキシカルボニル)-L-リジン (ノババイオケム社製, 295 mg, 0.852 mmol)、ジイソプロピルエチルアミン (0.354 mL,2.029 mmol)、および2-(1H-ベンゾトリアゾール-1-イル)-1,1,3,3-テトラメチルウロニウムヘキサフルオロリン酸塩 (324 mg, 0.852 mmol)を加えて、室温にて終夜攪拌した。反応液を氷冷し、10%クエン酸水溶液を加え、クロロホルムで抽出した後、有機層を飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥した。減圧下、溶媒を留去し、残渣をアミノシリカゲルカラムクロマトグラフィー (クロロホルム/メタノール)で精製することにより、化合物RE3-8 (450 mg)を定量的に得た。
ESI-MS m/z: 1101(M + H)+
参考例3工程7で合成した化合物RE3-8 (2.1558 g, 1.9593 mmol)をジクロロメタン (20 mL)に溶解し、氷冷下、トリフルオロ酢酸 (5 mL)を加えて、室温にて4時間攪拌した。反応液を減圧下、溶媒を留去することにより、化合物RE3-9を定量的に得た。
ESI-MS m/z: 700(M + H)+
参考例3に記載の方法で合成した化合物RE4-1(参考例3における化合物RE3-5, 0.5716 g, 0.7582 mmol)、バイオコンジュゲート・ケミストリー (Bioconjugate Chemistry), 第22巻, 690-699頁, 2011年に記載された方法で合成したドデカン酸モノベンジルエステル (0.4859 g, 1.5164 mmol)、ジイソプロピルエチルアミン (0.662 mL, 3.79 mmol)、および2-(1H-ベンゾトリアゾール-1-イル)-1,1,3,3-テトラメチルウロニウムヘキサフルオロリン酸塩 (0.5766 g, 1.516 mmol)をN,Nジメチルホルムアミド(12 mL)に溶解し、室温にて1時間攪拌した。反応液を氷冷し、飽和クエン酸水溶液を加え、クロロホルムで抽出した後、有機層を飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー (クロロホルム/メタノール)で精製することにより、化合物RE4-2 (0.88 g, 収率84%)を得た。
ESI-MS m/z: 1057(M + H)+
参考例4工程1で合成した化合物RE4-2 (0.7545 g, 0.714 mmol)をジクロロメタンとテトラヒドロフランの混合溶媒 (20 mL)に溶解し、室温にてジエチルアミン (5 mL,47.9 mmol)を加えて終夜攪拌した。減圧下、溶媒を留去することにより、化合物RE4-3を定量的に得た。
ESI-MS m/z: 612(M + H)+
参考例4工程2で合成した化合物RE4-3 (0.437 g, 0.7143 mmol)、Nα,Nε-ビス(tert-ブトキシカルボニル)-L-リジン (ノババイオケム社製, 0.5483 g, 1.583 mmol)、ジイソプロピルエチルアミン (0.624 mL, 3.57 mmol)、2-(1H-ベンゾトリアゾール-1-イル)-1,1,3,3-テトラメチルウロニウムヘキサフルオロリン酸塩 (0.5703 g, 1.5 mmol)を加えて、室温にて2時間攪拌した。反応液に10%クエン酸水溶液を加え、酢酸エチルで抽出した後、有機層を飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥した。減圧下、溶媒を留去することにより、化合物RE4-4の粗生成物を得た。
ESI-MS m/z: 1269(M + H)+
参考例4工程3で合成した化合物RE4-4 (0.906 g, 0.7143 mmol)をジクロロメタン (12 mL)に溶解し、氷冷下、トリフルオロ酢酸 (3mL, 38.9 mmol)を加えて、室温にて4時間攪拌した。反応液を減圧下、溶媒を留去することにより、化合物RE4-5の粗生成物を得た。
ESI-MS m/z: 869(M + H)+
参考例3に記載の方法で合成した化合物RE5-1 (参考例3におけるRE3-8, 100 mg, 0.091 mmol)をメタノール (3 mL)に溶解し、酢酸 (2 μL)を添加した後、パラジウム/炭素による接触水素還元を行った。得られた溶液留分を減圧下、溶媒を留去することにより、化合物RE5-2を定量的に得た。
ESI-MS m/z: 967 (M + H)+
化合物RE5-2 (50 mg, 0.052 mmol)およびN-(6-マレイミドカプロイルオキシ)スクシミド (48 mg, 0.155 mmol)をテトラヒドロフラン (2 mL)に溶解し、ジイソプロピルエチルアミン (0.045 mL, 0.259 mmol)を加えて、室温にて終夜攪拌した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー(クロロホルム/メタノール)で精製することにより、化合物RE5-3 (18 mg, 収率30%)を得た。
ESI-MS m/z: 1160 (M + H)+
参考例5工程2で合成した化合物RE5-3 (18 mg, 0.016 mmol)をジクロロメタン (2 mL)に溶解し、氷冷下、トリフルオロ酢酸 (0.2 mL, 2.6 mmol)を加えて、室温にて終夜攪拌した。反応液を減圧下、溶媒を留去し、ジエチルエーテルにて晶析した後、化合物RE5-4 (7.5 mg, 収率64%)を白色固体として得た。
ESI-MS m/z: 759 (M + H)+
参考例3に記載の方法で合成した化合物RE6-1 (参考例3における化合物RE3-2, 0.9372 g, 2.8809 mmol)、β-アラニンメチルエステル塩酸塩 (東京化成工業株式会社製, 0.8082 g, 5.7902 mmol)を用い、参考例3工程3と同様の方法で化合物RE6-2を定量的に得た。
ESI-MS m/z: 495 (M + H)+
参考例6工程1で合成した化合物RE6-2 (0.9622 g, 1.952 mmol)を用い、参考例3工程4と同様の方法で化合物RE6-3を定量的に得た。
ESI-MS m/z: 396 (M + H)+
参考例6工程2で合成した化合物RE6-3 (0.1146 g, 0.290 mmol)およびN-スクシンイミジル15-アジド-4,7,10,13-テトラオキサペンタデカン酸(N3-PEG4-NHS, 東京化成工業株式会社製, 0.0750 g, 0.1931 mmol)を用い、参考例5工程2と同様の方法で化合物RE6-4を定量的に得た。
ESI-MS m/z: 669 (M + H)+
参考例6工程3で合成した化合物RE6-4 (0.1291 g, 0.193 mmol)を用い、参考例3工程2と同様の方法で化合物RE6-5を定量的に得た。
ESI-MS m/z: 641 (M + H)+
参考例6工程4で合成した化合物RE6-5 (0.1252 g, 0.193 mmol)およびL-グルタミン酸 ジ-tert-ブチルエステル(渡辺化学株式会社製, 0.1180 g, 0.399 mmol)を用い、参考例3工程3と同様の方法で化合物RE6-6 (0.0521 g, 収率24%)を得た。
ESI-MS m/z: 1124 (M + H)+
参考例6工程5で合成した化合物RE6-6 (0.0521 g, 0.0464 mmol)を用い 、参考例3工程4と同様の方法で化合物RE6-7 (36 mg, 収率86%)を得た。
ESI-MS m/z: 899 (M + H)+
参考例3に記載の方法で合成した化合物RE7-1 (参考例3におけるRE3-9, 0.2586 g, 0.3695 mmol)とジャーナル・オブ・アメリカン・ケミカル・ソサイエティー (Journal of American Chemical Society), 第136巻, 16958-16961頁, 2014年に記載された方法で合成した参考例1に記載の化合物RE-1 (0.8559 g, 1.7927 mmol)を用い、参考例3工程3と同様の方法で化合物RE7-2 (0.5272 g, 収率61%)を得た。
ESI-MS m/z: 2418 (M + H)+
参考例7工程1で合成した化合物RE7-2 (0.2653 g, 0.1097 mmol)を用い、参考例5工程1と同様の方法で化合物RE7-3 (0.1524 g, 収率61%)を得た。
ESI-MS m/z: 2284 (M + H)+
参考例7に記載の方法で合成した化合物RE8-1 (参考例7における化合物RE7-3, 0.0152 g, 0.006657 mmol)を用い、参考例5工程2と同様の方法で化合物A1 (0.0077 g, 収率47%)を得た。
ESI-MS m/z: 1239(M + 2H)2+
1H-NMR (DMSO-D6) δ: 1.11-1.66 (34H, m), 1.77 (12H, d, J = 1.5 Hz), 1.89 (12H, s), 2.01-2.14 (10H, m), 2.01 (12H, s), 2.10 (12H, s), 2.92-2.99 (4H, m), 3.16-3.54 (14H, m), 3.65-3.74 (4H, m), 3.81-3.91 (4H, m), 3.98-4.08 (14H, m), 4.11-4.24 (4H, m), 4.48 (4H, dd, J = 8.4, 1.8 Hz), 4.93-5.00 (4H, m), 5.21 (4H, d, J = 3.5 Hz), 6.99 (2H, s), 7.52 (2H, s), 7.66-7.75 (2H, m), 7.78-7.87 (6H, m), 7.91 (1H, br s), 8.01-8.08 (3H, br m), 8.54-8.60 (2H, br m).
化合物RE8-1 (参考例7における化合物RE7-3, 0.0150 g, 0.00657 mmol)を用い、参考例3工程3と同様の方法で化合物B1 (0.0062 g, 収率37%)を得た。
ESI-MS m/z: 1279(M + 2H)2+
1H-NMR (DMSO-D6) δ: 1.11-1.66 (30H, m), 1.77 (12H, s), 1.89 (12H, s), 2.01-2.14 (8H, m), 2.01 (12H, s), 2.10 (12H, s), 2.33-2.38 (2H, m), 2.92-2.99 (4H, m), 3.16-3.54 (14H, m), 3.58-3.63 (16H, m), 3.65-3.74 (4H, m), 3.81-3.91 (4H, m), 3.98-4.08 (12H, m), 4.11-4.24 (4H, m), 4.48 (4H, dd, J = 8.4, 1.8 Hz), 4.93-5.00 (4H, m), 5.21 (4H, d, J = 3.5 Hz), 7.52 (2H, s), 7.66-7.75 (2H, m), 7.78-7.87 (6H, m), 7.91 (1H, br s), 8.01-8.08 (3H, br m), 8.54-8.60 (2H, br m).
参考例6に記載の方法で合成した化合物RE9-1 (参考例6における化合物RE6-5, 0.00436 g, 0.00681 mmol)および参考例1の化合物RE1-4 (0.010 g, 0.020 mmol)を用い、参考例3工程3と同様の方法で化合物B2の粗生成物を得た。
ESI-MS m/z: 1584(M + H)+
参考例6に記載の方法で合成した化合物RE9-2 (参考例6における化合物RE6-7, 0.0100 g, 0.01112 mmol)を用い、参考例3工程3と同様の方法で化合物B3 (0.0223 g, 収率72%)を得た。
ESI-MS m/z: 1393(M + 2H)2+
参考例4に記載の方法で合成した化合物RE10-1 (参考例4における化合物RE4-5, 0.1952 g, 0.225 mmol)とジャーナル・オブ・アメリカン・ケミカル・ソサイエティー (Journal of American Chemical Society), 第136巻, 16958-16961頁、2014年に記載された方法で合成した参考例1の化合物RE1-1 (0.4162 g, 0.93 mmol)を用い、参考例3工程3と同様の方法で化合物RE10-2 (334.8 mg, 収率58%)を得た。
ESI-MS m/z: 1294 (M + 2H)2+
参考例10工程1で合成した化合物RE10-2 (0.1459 g, 0.056 mmol)を用い、参考例5工程1と同様の方法で化合物D1 (112 mg, 収率80%)を得た。
ESI-MS m/z: 1249 (M + 2H)2+
1H-NMR (DMSO-D6) δ: 1.11-1.66 (44H, m), 1.77 (12H, d, J = 1.5 Hz), 1.89 (12H, s), 2.01-2.20 (12H, m), 2.01 (12H, s), 2.10 (12H, s), 2.92-2.99 (4H, m), 3.16-3.54 (10H, m), 3.58-3.64 (4H, m), 3.65-3.74 (4H, m), 3.81-3.91 (4H, m), 3.98-4.08 (12H, m), 4.11-4.24 (4H, m), 4.48 (4H, dd, J = 8.4, 1.8 Hz), 4.93-5.00 (4H, m), 5.21 (4H, d, J = 3.5 Hz), 6.99 (2H, s), 7.52 (2H, s), 7.66-7.75 (2H, m), 7.78-7.87 (6H, m), 7.91 (1H, br s), 8.01-8.08 (3H, br m), 8.54-8.60 (2H, br m).
参考例10工程2で合成した化合物D1 (0.1091 g, 0.044 mmol)および参考例2の化合物RE2-3 (0.0748 g, 0.184 mmol)を用い、参考例3工程3と同様の方法で化合物RE10-3を粗生成物として得た。
ESI-MS m/z: 1292 (M + 2H)2+, 脱DMTr体として検出
参考例10工程3で合成した化合物RE10-3 (0.161 g, 0.05586 mmol)をジクロロメタン (5 mL)に溶解し、コハク酸無水物 (東京化成工業社製, 0.1182 g, 1.181 mmol)、N,N-ジメチルアミノピリジン (0.0224 g,0.183 mmol)、およびトリエチルアミン(0.55 mL, 3.95 mmol)を加えて、室温にて一晩攪拌した。反応液を氷冷し、水を加え、酢酸エチルで2回抽出した後、有機層を飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥した。減圧下、溶媒を留去することにより、化合物RE10-4の粗生成物を得た。
ESI-MS m/z: 1342(M + 2H)2+, 脱DMTr体として検出
参考例10工程4で合成した化合物RE10-4 (0.0816 g, 0.02734 mmol)、O-(ベンゾトリアゾール-1-イル)-N,N,N',N'-テトラメチルウロニウム ヘキサフルオロリン酸塩 (0.0221 g, 0.05827 mmol)、およびジイソプロピルエチルアミン(0.02 mL, 0.1094 mmol)をN,N-ジメチルホルムアミド(4 mL)に溶解し、LCAA-CPG (Chem Gene社製, 0.4882 g)を加え、室温にて終夜攪拌した。混合物を濾別し、ジクロロメタン、10%メタノールジクロロメタン溶液、およびジエチルエーテルで順次洗浄した後、無水酢酸/ピリジン溶液と作用させることにより、化合物C1(49.5 μmol/g, 収率89%)を得た。なお、収率は1%トリフルオロ酢酸/ジクロロメタン溶液を固相担持体に添加し、DMTr基に由来する吸収から計算できる固相担体への導入率より算出した。
ESI-MS m/z: 582 (M + H)+
ESI-MS m/z: 570 (M + H)+
ESI-MS m/z: 639 (M + H)+
化合物RE14-1 (参考例1における化合物RE1-1, 3.00 g, 6.70 mmol)をジクロロメタン (60 mL)に溶解し、室温にてL-リジンベンジルエステル二p-トルエンスルホン酸塩 (1.75 g, 3.02 mmol)、トリエチルアミン(0.935 mL, 6.70 mmol), 1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩 (1.29 g, 6.70 mmol)、1-ヒドロキシベンゾトリアゾール1水和物 (103 mg, 0.670 mmol)を加えて2.5時間撹拌した。反応液を水と飽和炭酸水素ナトリウム水溶液で洗浄し、無水硫酸ナトリウムで乾燥した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー (クロロホルム/メタノール=90/10)で精製することにより、化合物RE14-2を定量的に得た。
ESI-MS m/z: 1096 (M + H)+
化合物RE14-2 (2.30 g, 2.10 mmol)をテトラヒドロフラン (46 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 424 mg)を加え、水素雰囲気下で終夜撹拌した。反応液をろ過し、減圧下、溶媒を留去することにより、化合物RE14-3を定量的に得た。
ESI-MS m/z: 1006 (M + H)+
イミノ二酢酸 (東京化成工業社製, 1.5 g, 6.43 mmol,)を塩化メチレン(30 mL)に溶解し、ペンタフルオロトリフルオロ酢酸(東京化成工業社製, 2.75 mL, 16.08 mmol)、トリエチルアミン(4.48 mL, 32.2 mmol)を加えて4時間撹拌した。反応液に10%クエン酸水溶液を加え、クロロホルムで抽出した後、有機層を飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥した。そこに、参考例11に記載の方法で合成した化合物RE15-1 (参考例11における化合物RE11-2, 2 g, 3.45 mmol)を酢酸エチル(10 mL)とアセトニトリル(10 mL)との混合液に溶解し、パラジウム/炭素による接触水素還元を行った。得られた溶液部分を減圧下、溶媒を留去することにより、化合物RE15-2の粗製生物を得た。
ESI-MS m/z: 1091(M+H)+
化合物RE15-2 (1.5 g,1.37 mmol)を用い、参考例1工程3と同様の方法で化合物RE15-3を定量的に得た。
ESI-MS m/z: 990(M+H)+
N-(t-ブトキシカルボニル)-L-グルタミン酸 (東京化成工業社製)を用いて、参考例11に記載の方法で合成した化合物RE16-1 (1.855 g, 3.19 mmol)を用い、参考例15工程1と同様の方法で化合物RE16-2の粗精製物を得た。
ESI-MS m/z: 1105(M+H)+
化合物RE16-2(1.421 g, 1.2866 mmol)を用い、参考例1工程3と同様の方法で化合物RE16-3を定量的に得た。
ESI-MS m/z: 1004(M+H)+
を得た。
ESI-MS m/z: 516 (M+Na)+
1H-NMR (400 MHz, CDCl3): δ0.89 (3H, s), 1.42-1.48 (2H, m), 1.52-1.61 (2H, m), 1.85 (1H, br s), 2.68 (2H, t, J = 7.2 Hz), 3.06-3.07 (2H, m), 3.39-3.44 (3H, m), 3.51-3.55 (3H, m), 3.78 (6H, s), 6.80-6.85 (4H, m), 7.17-7.23 (1H, m), 7.27-7.33 (6H, m), 7.41-7.43 (2H, m).
化合物RE18-1 (東京化成工業社製, 0.500 g, 3.73 mmoL)を用いて参考例2工程1と同様の方法で化合物RE18-2の粗生成物 (1.5 g) を得た。
ESI-MS m/z: 435 (M-H)-
化合物RE18-2の粗生成物 (1.5 g) と1,4-Diaminobutane (東京化成工業社製, 3.29 g, 37.3 mmol)を用いて参考例3工程3と同様の方法で化合物RE18-3 (0.18 g, 2 段階収率10%)を得た。
ESI-MS m/z: 551 (M+HCOO)-
1H-NMR (400 MHz, MeOD):δ1.09 (3H, s), 1.45-1.52 (4H, m), 2.80 (2H, t, J = 7.2 Hz), 2.91 (2H, s), 3.05 (1H, d, J = 8.8 Hz), 3.12-3.16 (4H, m), 3.24 (1H, s), 3.43 (1H, d, J = 10.8 Hz), 3.62-3.66 (7H, m), 6.71-6.76 (4H, m), 7.05-7.11 (1H, m), 7.12-7.20 (6H, m), 7.28-7.32 (2H, m).
ESI-MS m/z: 845 (M+H)+
1H-NMR (400 MHz, CDCl3):δ0.88 (3H, s), 0.91-1.09 (3H, m), 1.20-1.25 (1H, m), 1.52-1.59 (4H, m), 1.80-1.85 (2H, m), 2.19-2.25 (4H, m), 2.59-2.68 (1H, m), 2.84-2.90 (4H, m), 3.02-3.11 (3H, m), 3.35-3.44 (5H, m), 3.49-3.53 (5H, m), 3.54-3.58 (2H, m), 3.62 (5H, s), 3.78 (6H, s), 4.13 (2H, d, J = 6.4 Hz), 4.21 (2H, t, J = 7.2 Hz), 6.79-6.84 (4H, m), 7.18-7.21 (1H, m), 7.24-7.27 (2H, m), 7.28-7.32 (4H, m), 7.39-7.44 (2H, m).
化合物RE20-1 (AstaTech社製, 100 mg, 1.148 mmol)およびFmoc-Ser(tBuMe2Si)-OH (渡辺化学工業社製, 532 mg, 1.205 mmol)を用いて参考例3工程3と同様の方法で化合物RE20-2 (410 mg, 収率70%)を得た。
ESI-MS m/z: 511 (M+H)+
1H-NMR (400 MHz, CDCl3):δ 0.06 (6H, s), 0.90 (9H, s), 2.76-2.85 (1H, m), 3.65-3.86 (5H, m), 4.02-4.23 (3H, m), 4.32-4.40 (4H, m), 5.55 (1H, d, J = 8.0 Hz), 7.31 (2H, t, J = 7.6 Hz), 7.40 (2H, t, J = 7.6 Hz), 7.59 (2H, d, J = 7.6 Hz), 7.76 (2H, d, J = 7.6 Hz).
化合物RE20-2 (410 mg, 0.803 mmol)を用いて参考例2工程1と同様の方法で化合物RE20-3の粗生成物(680 mg)を得た。
ESI-MS m/z: 814 (M+H)+
化合物RE20-3の粗生成物 (680 mg)を用いて参考例2工程5と同様の方法で化合物RE20-4 (330 mg, 2段階収率70%)を得た。
ESI-MS m/z: 519 (M+H)+
1H-NMR (400 MHz, CDCl3):δ0.02-0.09 (6H, m), 0.89 (9H, d, J = 28.8 Hz), 2.84-2.94 (1H, m), 3.24-3.30 (2H, m), 3.46 (1H, t, J = 7.2 Hz), 3.52-3.68 (2H, m), 3.75-3.80 (1H, m), 3.82 (6H, d, J = 2.4 Hz), 3.89-3.96 (1H, m), 4.05-4.17 (1H, m), 4.27-4.37 (1H, m), 6.82-6.89 (4H, m), 7.22-7.27 (1H, m), 7.29-7.34 (6H, m), 7.41-7.45 (2H, m)
N-(Tert-ブトキシカルボニル)-1,3-ジアミノプロパン(東京化成工業社製,1.788 g, 10.26 mmol)をジクロロメタン(22.8 mL)に溶解し、トリエチルアミン(1.907 mL, 13.68 mmol)を加え、室温で15分撹拌した。反応液に、オーガニックレター(Organic Letter), 第16巻, 6318-6321頁, 2014年に記載された方法で合成した化合物RE21-1(1.126 g, 6.84 mmol)のジクロロメタン溶液(5 mL)を滴下し、室温で2時間撹拌した。反応液に水を加え、クロロホルムで抽出した後、有機層を飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー(ヘプタン/酢酸エチル=35/65)で精製することにより、化合物RE21-2(1.65 g,収率80%)を得た。
ESI-MS m/z: 303 (M+H)+
化合物RE21-2 (1.65 g, 5.46 mmol)を用いて参考例1工程2と同様の方法で化合物RE21-3 (1.10 g, 収率100%)を得た。
ESI-MS m/z: 203 (M+H)+
1H-NMR (400 MHz, CDCl3):δ1.74 (2H, dt, J = 12.0, 6.0 Hz), 2.95 (2H, t, J = 6.0 Hz), 3.18 (1H, s), 3.60 (2H, td, J = 6.0, 5.2 Hz), 7.54 (2H, dt, J = 8.4, 1.8 Hz), 7.76 (2H, dt, J = 8.4, 1.8 Hz), 7.97 (1H, br s).
化合物RE22-1 (東京化成社製, 1.2 g, 4.24mmol)を用いて参考例2工程1と同様の方法で化合物RE22-2の粗製生物を得た。
ESI-MS m/z: 608(M+Na)+
化合物RE22-2の粗生成物を用いて参考例2工程5と同様の方法で化合物R22-3 (1.34 g, 2段階収率52%) を得た。
ESI-MS m/z: 386(M+Na)+
1H-NMR (400 MHz, CDCl3):δ3.34 (2H, t, J = 6.4 Hz), 3.47 (2H, t, J = 6.4 Hz), 3.79 (6H, s), 6.78-6.84 (4H, m), 7.17-7.21 (1H, m), 7.27-7.35 (6H, m), 7.42-7.46 (2H, m).
化合物RE22-3 (1.15 g,3.16 mmol)およびFmoc-Ser(tBuMe2Si)-OH(渡辺化学工業社製, 1.677 g, 3.8 mmol)を用いて参考例3工程3と同様の方法で化合物RE22-4 (560 mg, 収率31%)を得た。
1H-NMR (400 MHz, CDCl3) δ: 0.00-0.07 (6H, m), 0.83-0.89 (9H, m), 3.18-3.26 (2H, m), 3.39-3.46 (2H, m), 3.61-3.68 (1H, m), 3.76 (6H, s), 3.89 (1H, dd, J = 10.0, 4.0 Hz), 4.03 (1H, dd, J = 10.0, 4.0 Hz), 4.15-4.20 (1H, m), 4.22-4.28 (1H, m), 4.32-4.40 (2H, m), 5.65-5.88 (1H, m), 6.76-6.85 (4H, m), 7.16-7.23 (1H, m), 7.25-7.34 (8H, m), 7.36-7.44 (4H, m), 7.50-7.64 (2H, m), 7.72-7.79 (2H, m).
表Y-1に記載された化合物RE23-1~RE23-5およびFmoc-Ser(tBuMe2Si)-OHを用いて、参考例22と同様の方法により、表Y-2に記載された化合物RE23-6~RE23-10を得た。
参考例22の化合物RE22-3とFmoc-Thr(tBuMe2Si)-OHを用いて、参考例22と同様の方法により表Y-2に記載した化合物RE23-11を得た。
表Y-1に記載された化合物RE23-1とFmoc-Thr(tBuMe2Si)-OHを用いて、参考例22と同様の方法により表Y-2に記載した化合物RE23-12を得た。
本実施例により合成した化合物のNMR分析データを表Y-3に示す。
ESI-MS m/z: 587(M+Na)+
1H-NMR (400 MHz, CDCl3):δ-0.01-0.07 (6H, m), 0.86-0.90 (9H, m), 3.15-3.21 (2H, m), 3.41-3.48 (3H, m), 3.72 (1H, dd, J = 10.0, 6.4 Hz), 3.79 (6H, s), 3.84 (1H, dd, J = 10.0, 4.8 Hz), 6.79-6.84 (4H, m), 7.18-7.23 (1H, m), 7.27-7.33 (6H, m), 7.40-7.44 (2H, m), 7.72-7.75 (1H, br m).
表Y-2に記載した化合物RE23-6~RE23-12を用いて参考例24と同様の方法により表Z-1に記載した化合物RE25-1~RE25-7を得た。
本実施例により合成した化合物の質量分析結果を表Z-2に示す。
化合物RE26-1 (2.00 g, 9.47 mmol)をN, N'-ジメチルホルムアミド (40 mL)に溶解し、室温にてイミノ二酢酸ジ-tert-ブチルエステル (5.11 g, 20.84 mmol)、1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩 (4.00 g, 20.84 mmol)、1-ヒドロキシベンゾトリアゾール1水和物 (145 mg, 0.947 mmol)を加えて2時間撹拌した。反応液に水を加え、酢酸エチルで抽出した後、有機層を飽和炭酸水素ナトリウム水溶液と飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー (ヘプタン/酢酸エチル=50/50)で精製した。さらにメタノールでスラリー精製することにより、化合物RE26-2 (4.07 g, 収率65 %)を得た。
ESI-MS m/z: 664 (M - H)-
化合物RE26-2 (2.66 g, 4.00 mmol)をテトラヒドロフラン (53 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 490 mg)を加え、水素雰囲気下で3時間撹拌した。反応液をろ過し、減圧下、溶媒を留去することにより、化合物RE26-3 (2.86 g, 収率113%)を得た。
ESI-MS m/z: 634 (M - H)-
化合物RE26-3(871.0 mg, 1.370 mmol)をN, N'-ジメチルホルムアミド(17 mL)に溶解し、O-(7-アザベンゾトリアゾール-1-イン)-N,N,N',N'-テトラメチルウロニウムヘキサフルオロリン酸塩(625.0 mg, 1.644 mmol)、ジイソプロピルエチルアミン(0.5730 mL, 3.290 mmol)、およびドデカン二酸モノベンジルエステル(527.0 mg, 1.644 mmol)を加え、室温で終夜攪拌した。反応液に水を加え、酢酸エチルで抽出した後、有機層を飽和炭酸水素ナトリウム水溶液および飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー(へプタン/酢酸エチル=60/40)で精製することにより、化合物RE26-4(1.030 g, 収率80%)を得た。
ESI-MS m/z: 939 (M + H)+
化合物RE26-4(1.030 g, 1.098 mmol)をジクロロメタン(10 mL)に溶解し、トリフルオロ酢酸(10.00 mL, 130.0 mmol)を加え、室温で1時間攪拌した。減圧下、溶媒を留去し、化合物RE26-5の粗生成物を得た。
ESI-MS m/z: 713 (M - H)-
化合物RE27-1(2.000 g, 12.98 mmol)をN, N'-ジメチルホルムアミド(30 mL)に溶解し、炭酸水素カリウム(1.559 g, 15.57 mmol)および塩化ベンジル(2.328 mL, 19.47 mmol)を加えて、室温にて4時間攪拌した。反応液に飽和塩化アンモニウム水溶液を加え、ジクロロメタンで抽出した後、有機層を水で洗浄し、無水硫酸ナトリウムで乾燥した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー(へプタン/酢酸エチル=50/50)で精製することにより、化合物RE27-2(2.850 g, 収率90%)を得た。
ESI-MS m/z: 243 (M - H)-
化合物RE27-2(2.500 g, 10.24 mmol)をN, N'-ジメチルホルムアミド(30 mL)に溶解し、炭酸カリウム(5.660 g, 40.90 mmol)およびtert-ブチルブロモ酢酸(3.300 mL, 22.52 mmol)を加え、90℃で4時間攪拌した。反応液に飽和塩化アンモニウム水溶液を加え、ジクロロメタンで抽出した後、有機層を飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー(へプタン/酢酸エチル=75/25)で精製することにより、化合物RE27-3(4.300 g, 収率89%)を得た。
ESI-MS m/z: 472 (M - H)-
化合物RE27-3(1.000 g, 2.116 mmol)をジクロロメタン(10 mL)に溶解し、トリフルオロ酢酸(10.00 mL, 130.0 mmol)を加え、室温で6時間攪拌した。減圧下、溶媒を留去し、化合物RE27-4の粗生成物を得た。
ESI-MS m/z: 359 (M - H)-
化合物RE27-4(350.0 mg, 0.9710 mmol)をN, N'-ジメチルホルムアミド(7 mL)に溶解し、1-ヒドロキシベンゾトリアゾール一水和物(327.0 mg, 2.137 mmol)、1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩(410.0 mg, 2.137 mmol)、およびイミノジ酢酸ジ-tert-ブチルエステル(524.0 mg, 2.137 mmol)を加え、室温で5時間攪拌した。反応液に水を加え、酢酸エチルで抽出した後、有機層を飽和炭酸水素ナトリウム水溶液および飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー(へプタン/酢酸エチル=60/40)で精製することにより、化合物RE27-5(617.0 mg, 収率78%)を得た。
ESI-MS m/z: 814 (M - H)-
化合物RE27-5(610.0 mg, 0.7490 mmol)をジクロロメタン(6 mL)に溶解し、トリフルオロ酢酸(6 mL, 78.00 mmol)を加え、室温で1時間攪拌した。減圧下、溶媒を留去し、化合物RE27-6の粗生成物を得た。
ESI-MS m/z: 590 (M + H)+
参考例26に記載に方法で合成した化合物RE28-1 (参考例26における化合物RE26-3, 474 mg, 0.744 mmol)をN, N'-ジメチルホルムアミド (10 mL)に溶解し、室温にてジャーナル・オブ・メディシナル・ケミストリー (Journal of Medicinal Chemistry), 第54巻, 2433-2446頁, 2011年に記載された方法で合成したtrans-シクロヘキサン-1,4-ジカルボン酸モノベンジルエステル (0.234 mg, 0.893 mmol)、ジイソプロピルエチルアミン (0.312 mL, 1.79 mmol)、O-(7-アザベンゾトリアゾール-1-イル)-N,N,N',N'-テトラメチルウロニウムヘキサフルオロホスファート (339 mg, 0.893 mmol)を加えて6時間撹拌した。反応液に水を加え、酢酸エチルで抽出した後、有機層を飽和炭酸水素ナトリウム水溶液と飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー (ヘプタン/酢酸エチル=50/50)で精製することにより、化合物RE28-2 (448 mg, 収率68 %)を得た。
ESI-MS m/z: 879 (M - H)-
化合物RE28-2 (341 mg, 0.387 mmol)をジクロロメタン (3.4 mL)に溶解し、室温にてトリフルオロ酢酸 (3.4 mL)を加えて終夜撹拌した。反応液を減圧濃縮し、酢酸エチルで共沸し、ヘプタンでスラリー精製することにより、化合物RE28-3 (254 mg, 収率100%)を得た。
ESI-MS m/z: 656 (M + H)+
化合物RE29-1 (500 mg, 2.75 mmol)をN, N'-ジメチルホルムアミド (10 mL)に溶解し、室温にてイミノジ酢酸ジ-tert-ブチルエステル (1.48 g, 6.04 mmol)、1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩 (1.16 g, 6.04 mmol)、1-ヒドロキシベンゾトリアゾール1水和物 (42.0 mg, 0.275 mmol)を加えて4時間撹拌した。反応液に水を加え、酢酸エチルで抽出した後、有機層を飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー (ヘプタン/酢酸エチル=50/50)で精製することにより、化合物RE29-2 (329 mg, 収率19 %)を得た。
ESI-MS m/z: 635 (M - H)-
化合物RE29-2 (323 mg, 0.507 mmol)をN, N'-ジメチルホルムアミド (6.5 mL)に溶解し、室温にて炭酸カリウム (84.0 mg, 0.609 mmol)、ブロモ酢酸ベンジル (139 mg, 0.609 mmol)を加えて3時間撹拌した。反応液に水を加え、酢酸エチルで抽出した後、有機層を飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー (ヘプタン/酢酸エチル=50/50)で精製することにより、化合物RE29-3 (313 mg, 収率79 %)を得た。
ESI-MS m/z: 783 (M - H)-
化合物RE29-3 (312 mg, 0.398 mmol)をジクロロメタン (3.1 mL)に溶解し、室温にてトリフルオロ酢酸 (3.1 mL)を加えて終夜撹拌した。反応液を減圧濃縮し、酢酸エチルで共沸することにより、化合物RE29-4 (252 mg, 定量的)を得た。
ESI-MS m/z: 561 (M + H)+
化合物RE30-1 (2.00 g, 9.47 mmol)をN, N'-ジメチルホルムアミド (40 mL)に溶解し、室温にて2-アミノ-1,3-プロパンジオール (1.90 g, 20.84 mmol)、1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩 (4.00 g, 20.84 mmol)、1-ヒドロキシベンゾトリアゾール1水和物 (145 mg, 0.947 mmol)を加えて2時間撹拌した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー (酢酸エチル/メタノール=70/30)で精製した。さらに酢酸エチルでスラリー精製することにより、化合物RE30-2 (2.68 g, 収率79 %)を得た。
ESI-MS m/z: 356 (M - H)-
化合物RE30-2 (500 mg, 1.40 mmol)をアセトニトリル (10 mL)に懸濁し、室温にてアクリル酸tert-ブチルエステル (3.59 g, 28.0 mmol)、ベンジルトリメチルアンモニウムヒドロキシド (40%水溶液; 1.76 mL, 702 mmol)を加えて終夜撹拌した。減圧下、溶媒を留去し、水を加え、酢酸エチルで抽出した後、有機層を飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー (ヘプタン/酢酸エチル=50/50)で精製することにより、化合物RE30-3 (300 mg, 収率24 %)を得た。
ESI-MS m/z: 871 (M + H)+
化合物RE30-3 (340 mg, 0391 mmol)をテトラヒドロフラン (6.8 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 31.3 mg)を加え、水素雰囲気下で6時間撹拌した。反応液をろ過し、減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー (ヘプタン/酢酸エチル=30/70)で精製することにより、化合物RE30-4 (235 mg, 収率72 %)を得た。
ESI-MS m/z: 841 (M + H)+
化合物RE30-4 (232 mg, 0.276 mmol)をN, N'-ジメチルホルムアミド (4.6 mL)に溶解し、室温にてドデカン酸モノベンジルエステル (0.133 mg, 0.414 mmol)、ジイソプロピルエチルアミン (0.145 mL, 0.829 mmol)、O-(7-アザベンゾトリアゾール-1-イル)-N,N,N',N'-テトラメチルウロニウムヘキサフルオロホスファート (158 mg, 0.414 mmol)を加えて終夜撹拌した。反応液に水を加え、酢酸エチルで抽出した後、有機層を飽和炭酸水素ナトリウム水溶液と飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー (ヘプタン/酢酸エチル=30/70)で精製することにより、化合物RE30-5 (274 mg, 収率87 %)を得た。
ESI-MS m/z: 1141 (M - H)-
化合物RE30-5 (273 mg, 0.239 mmol)をジクロロメタン (2.7 mL)に溶解し、室温にてトリフルオロ酢酸 (2.7 mL)を加えて終夜撹拌した。反応液を減圧濃縮し、酢酸エチルで共沸することにより、化合物RE30-6 (231 mg, 定量的)を得た。
ESI-MS m/z: 919 (M + H)+
4-ニトロイソフタル酸RE31-1 (500 mg, 2.37 mmol)およびN-Boc-エチレンジアミン (808 mg, 5.21 mmol)をN, N'-ジメチルホルムアミド (10 mL)に溶解し、室温にてトリエチルアミン (0.90 mL, 7.11 mmol)、1-ヒドロキシベンゾトリアゾール一水和物(703 mg, 5.21 mmol)および1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩(1.36 g, 7.11 mmol)を加えて16時間撹拌した。反応液を後処理し、粗体をシリカゲルカラムクロマトグラフィーで精製することにより、化合物RE31-2 (650 mg, 収率55 %)を得た。
化合物RE31-2 (500 mg, 1.01 mmol)および亜鉛末 (330 mg, 5.05 mmol)をメタノール (3.5 mL)およびテトラヒドロフラン (3.5 mL)に懸濁し、0℃にて塩化アンモニウム (378 mg, 7.07 mmol)の水溶液を滴下し、室温にて24時間撹拌した。反応液を後処理し、粗体をシリカゲルカラムクロマトグラフィーで精製することにより、化合物RE31-3 (160 mg, 収率34 %)を得た。
化合物RE31-3 (200 mg, 0.430 mmol)およびN-ベンジルオキシカルボニル-グリシン(ベンジルオキシカルボニルを、Cbzとも記載する。) (90.0 mg, 0.430 mmol)をN, N'-ジメチルホルムアミド (2.0 mL)に溶解し、室温にてジイソプロピルエチルアミン (0.220 mL, 1.29 mmol)、O-(7-アザベンゾトリアゾール-1-イル)-N,N,N',N'-テトラメチルウロニウムヘキサフルオロホスファート (245 mg, 0.645 mmol)を加えて16時間撹拌した。反応液を後処理し、粗体をシリカゲルカラムクロマトグラフィーで精製することにより、化合物RE31-4 (180 mg, 収率64 %)を得た。
ESI-MS m/z: 657 (M + H)+
3,5-ジニトロ安息香酸RE32-1 (500 mg, 2.36 mmol)およびN-Cbz-エチレンジアミン (588 mg, 2.83 mmol)をN, N'-ジメチルホルムアミド (5.0 mL)に溶解し、室温にてトリエチルアミン (0.65 mL, 4.72 mmol)、1-ヒドロキシベンゾトリアゾール一水和物(380 mg, 2.83 mmol)および1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩(675 mg, 3.54 mmol)を加えて16時間撹拌した。反応液を後処理し、粗体をシリカゲルカラムクロマトグラフィーで精製することにより、化合物RE32-2 (445 mg, 収率48 %)を得た。
化合物RE32-2 (200 mg, 0.515 mmol)をエタノール (5.0 mL)に溶解し、室温にて塩化スズ(II) (584 mg, 3.09 mmol)および濃塩酸 (0.2 mL)を加え、80℃で16時間撹拌した。反応液を後処理し、化合物RE32-3 (180 mg,定量的)を得た。
ESI-MS m/z: 329 (M + H)+
参考例3に記載の方法で合成した化合物RE33-1 (参考例3における化合物RE3-2, 8.17 g, 23.12 mmol)を用いて参考例3の工程4と同様の方法で化合物RE33-2 (3.7 g, 収率63%)を得た。
ESI-MS m/z: 254(M+H)+
化合物RE33-2 (3.7 g, 14.63 mmol)を用いて参考例3の工程5と同様の方法で化合物RE33-3 (3.82 g, 収率67%)を得た。
ESI-MS m/z: 432(M+HCOO)-
化合物RE33-3 (3.82 g, 9.86 mmol)を用いて参考例1の工程2と同様の方法で化合物RE33-4(3.08 g, 収率87%)を得た。
ESI-MS m/z: 360(M+H)+
化合物RE34-1 (2g, 9.53mmol)とtert-ブトキシカルボニルアミノ)-1-ペンタノール (東京化成社製, 2g,10mmol)を用い、参考例3の工程1と同様の方法で化合物RE34-2 (2.40 g, 収率63%)を得た。
ESI-MS m/z: 296(M+H)+, 脱Boc体として検出
化合物RE34-2を用いて、参考例3の工程2~4および参考例4の工程1~4と同様の方法で化合物RE34-3 (1.579g,収率21%)を得た。
ESI-MS m/z: 910 (M+H)+
参考例11に記載の方法で合成した化合物RE35-1 (参考例11における化合物RE11-2, 1.015 g, 1.748 mmol)をN, N'-ジメチルホルムアミド (12 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 187 mg)を加え、水素雰囲気下で6時間撹拌した。反応液をろ過した。ろ液に参考例26で合成した化合物RE26-5(250.0 mg, 0.350 mmol), 1-ヒドロキシベンゾトリアゾール一水和物(26.80 mg, 0.1750 mmol)、および1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩(402.0 mg, 2.099 mmol)を加え、室温で終夜攪拌した。反応液に水を加え、酢酸エチルで抽出した後、有機層を飽和炭酸水素ナトリウム水溶液および飽和食塩水で洗浄し、無水硫酸ナトリウムで乾燥した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー(クロロホルム/メタノール=87/13)で精製することにより、化合物RE35-2(617.0 mg, 収率88%)を得た。
ESI-MS m/z: 1215 (M + 2H) 2+
化合物RE35-2 (0.7380 g, 0.3040 mmol)をテトラヒドロフラン (7 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 135.90 mg)を加え、水素雰囲気下で終夜撹拌した。反応液をろ過し、減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー(クロロホルム/メタノール=87/13)で精製することにより、化合物D2(581 mg, 収率82%)を得た。
ESI-MS m/z: 1170 (M + 2H) 2+
1H-NMR (400 MHz, DMSO-d6,δ): 1.12-2.36 (106H, m), 2.91-3.19 (8H, m), 3.23-3.55 (14H, m), 3.60-3.76 (4H, m), 3.78-3.94 (8H, m), 3.95-4.10 (16H, m), 4.47 (4H, d, J = 8.8 Hz), 4.92-5.01 (4H, m), 5.17-5.24 (4H, m), 6.98 (1H, s), 7.64 (2H, s), 7.81-7.95 (4H, m), 8.28-8.38 (2H, m), 8.44-8.56 (2H, m), 10.13 (1H, s)
参考例12に記載の方法で合成した化合物RE36-1 (参考例12における化合物RE12-2, 500 mg, 0.879 mmol)をN, N'-ジメチルホルムアミド (6.5 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 94 mg)を加え、水素雰囲気下で4時間撹拌した。反応液をろ過した。ろ液に参考例26における化合物RE26-5(126.0 mg, 0.176 mmol), 1-ヒドロキシベンゾトリアゾール一水和物(13.47 mg, 0.088 mmol)、および1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩(202.0 mg, 1.055 mmol)を加え、室温で終夜攪拌した。反応液を減圧下、溶媒を留去し、残渣を逆相カラムクロマトグラフィー(水/アセトニトリル)で精製することにより、化合物RE36-2(249.7 mg, 収率60%)を得た。
ESI-MS m/z: 1191 (M + 2H) 2+
化合物RE36-2 (0.242 g, 0.102 mmol)をテトラヒドロフラン (3.6 mL)および水(1.2 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 45 mg)を加え、水素雰囲気下で4時間攪拌した。反応液をろ過し、減圧下、溶媒を留去し、化合物D3(216 mg, 収率93%)を得た。
ESI-MS m/z: 1146 (M + 2H) 2+
1H-NMR (400 MHz, DMSO-d6,δ): 1.15-1.65 (20H, m), 1.68-2.15 (52H, m), 3.13-3.29 (6H, m), 3.40-3.67 (16H, m), 3.71-3.96 (11H, m), 3.98-4.14 (16H, m), 4.55 (4H, t, J = 8.8 Hz), 4.93-5.06 (4H, m), 5.12-5.28 (4H, m), 6.56 (1H, s), 6.98 (1H. s), 7.64 (2H, s), 7.77-7.93 (4H, m), 8.26-8.49 (3H, m), 10.10 (1H, s)
参考例13に記載の方法で合成した化合物RE37-1 (参考例13における化合物RE13-2, 430 mg, 0.674 mmol)をN, N'-ジメチルホルムアミド (6 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 79 mg)を加え、水素雰囲気下で4時間撹拌した。反応液をろ過した。ろ液に参考例26における化合物RE26-5(105.0 mg, 0.148 mmol), 1-ヒドロキシベンゾトリアゾール一水和物(11.31 mg, 0.074 mmol)、および1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩(170.0.0 mg, 0.887 mmol)を加え、室温で終夜攪拌した。反応液を減圧下、溶媒を留去し、残渣を逆相カラムクロマトグラフィー(水/アセトニトリル)で精製することにより、化合物RE37-2(218.1 mg, 収率56%)を得た。
ESI-MS m/z: 1329 (M + 2H) 2+
化合物RE37-2 (0.210 g, 0.079 mmol)をテトラヒドロフラン (3.1 mL)および水(1.0 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 39 mg)を加え、水素雰囲気下で4時間攪拌した。反応液をろ過し、減圧下、溶媒を留去し、化合物D4 (192.7 mg, 収率95%)を得た。
ESI-MS m/z: 1284 (M + 2H) 2+
1H-NMR (400 MHz, DMSO-d6,δ): 1.17-1.65 (42H, m), 1.69-2.13 (61H, m), 2.95-3.17 (16H, m), 3.65-3.77 (3H, m), 3.79-3.94 (6H, m), 3.96-4.10 (16H, m), 4.48 (4H, d, J = 8.4 Hz), 4.96 (4H, dd, J = 2.4, 11.2 Hz), 5.21 (4H, d, J = 3.2 Hz), 7.01 (1H, s), 7.64-7.92 (11H, m), 8.26-8.48 (4H, m), 10.14 (1H, s)
参考例12に記載の方法で合成した化合物RE38-1 (参考例12における化合物RE12-2, 450 mg, 0.791 mmol)をN, N'-ジメチルホルムアミド (6 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 85 mg)を加え、水素雰囲気下で5時間撹拌した。反応液をろ過した。ろ液に参考例27における化合物RE27-6(94 mg, 0.158 mmol), 1-ヒドロキシベンゾトリアゾール一水和物(133.0 mg, 0.871 mmol)、および1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩(182.0 mg, 0.950 mmol)を加え、室温で終夜攪拌した。反応液を減圧下、溶媒を留去し、残渣を逆相カラムクロマトグラフィー(水/アセトニトリル)で精製することにより、化合物RE38-2(99 mg, 収率28%)を得た。
ESI-MS m/z: 1129 (M + 2H) 2+
化合物RE38-2 (80 mg, 0.035 mmol)をテトラヒドロフラン (1.7 mL)および水(0.85 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 26 mg)を加え、水素雰囲気下で2時間撹拌した。反応液をろ過し、減圧下、溶媒を留去し、化合物D5(57.5 mg, 収率75%)を得た。
ESI-MS m/z: 1084 (M + 2H) 2+
1H-NMR (400 MHz, DMSO-d6,δ): 1.69-2.21 (46H, m), 3.14-3.65 (28H, m), 3.67-4.22 (27H, m), 4.43-4.66 (4H, m), 4.69-4.88 (4H, m), 4.89-5.08 (4H, m), 5.12-5.32 (4H, m), 6.54-6.68 (1H, br), 7.01 (2H, s), 7.78-8.09 (3H, m), 8.13-8.31 (2H, m), 8.58-8.75 (2H, m)
参考例13に記載の方法で合成した化合物RE39-1 (参考例13における化合物RE13-2, 418 mg, 0.655 mmol)をN, N'-ジメチルホルムアミド (6 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 77 mg)を加え、水素雰囲気下で5時間撹拌した。反応液をろ過した。ろ液に参考例27で合成した化合物RE27-6(85 mg, 0.144 mmol), 1-ヒドロキシベンゾトリアゾール一水和物(121.0 mg, 0.791 mmol)、および1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩(165.0 mg, 0.863 mmol)を加え、室温で終夜攪拌した。反応液を減圧下、溶媒を留去し、残渣を逆相カラムクロマトグラフィー(水/アセトニトリル)で精製することにより、化合物RE39-2(99 mg, 収率28%)を得た。
ESI-MS m/z: 1268 (M + 2H) 2+
化合物RE39-2 (186 mg, 0.073 mmol)をテトラヒドロフラン (2.8 mL)および水(0.93 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 40 mg)を加え、水素雰囲気下で2時間撹拌した。反応液をろ過し、減圧下、溶媒を留去し、化合物D6(156.7 mg, 収率87%)を得た。
ESI-MS m/z: 1222 (M + 2H) 2+
1H-NMR (400 MHz, DMSO-d6,δ): 1.36-1.62 (27H, m), 1.67-2.17 (64H, m), 2.92-3.21 (15H, m), 3.58-3.77 (2H, m), 3.80-3.95 (7H, m), 3.97-4.13 (15H, m), 4.47 (4H, d, J = 8.8 Hz), 4.88-5.02 (7H, m), 5.10-5.24 (3H, m), 6.95-7.00 (1H, m), 7.26-7.31 (2H, m), 7.72-7.88 (8H, m), 8.10-8.20 (2H, m), 8.51-8.60 (2H, m)
参考例38に記載の方法で合成した化合物D5 (171 mg, 0.079 mmol)をN, N'-ジメチルホルムアミド (3.4 mL)に溶解し、グリシンベンジル p-トルエンスルホン酸塩(32.0 mg, 0.095 mmol)、1-ヒドロキシベンゾトリアゾール一水和物(12.09 mg, 0.079 mmol)、および1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩(18.16 mg, 0.095 mmol)を加え、室温で終夜攪拌した。反応液を減圧下、溶媒を留去し、残渣を逆相カラムクロマトグラフィー(水/アセトニトリル)で精製することにより、化合物RE40-2(55.7 mg, 収率31%)を得た。
ESI-MS m/z: 1158 (M + 2H) 2+
化合物RE40-2 (54 mg, 0.023 mmol)をテトラヒドロフラン (0.83 mL)および水(0.28 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 18 mg)を加え、水素雰囲気下で2時間撹拌した。反応液をろ過し、減圧下、溶媒を留去し、化合物RE40-3(50.1 mg, 収率97%)を得た。
ESI-MS m/z: 1112 (M + 2H) 2+
1H-NMR (400 MHz, DMSO-d6,δ): 0.96-1.06 (3H, m), 1.71-2.20 (54H, m), 3.41-3.64 (15H, m), 3.68-4.20 (32H), 4.55 (4H, d, J = 8.4 Hz), 4.81 (4H, s), 4.94-5.02 (4H, m), 5.17-5.25 (4H, m), 6.63-6.76 (2H, m), 6.93-7.02 (2H, m), 7.84-8.00 (3H, m), 8.17-8.30 (2H, m), 8.58-8.70 (2H, m)
化合物RE41-1 (500 mg, 0.861 mmol)をN, N'-ジメチルホルムアミド (10 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 92.1 mg)を加え、水素雰囲気下で2時間撹拌した。アルゴン雰囲気下、室温にて参考例27で合成した化合物RE27-3 (113 mg, 0.172 mmol)、1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩 (198 mg, 1.03 mmol)、1-ヒドロキシベンゾトリアゾール1水和物 (13.2 mg, 0.086 mmol)を加えて終夜撹拌した。反応液をセライトでろ過し、減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー (クロロホルム/メタノール=90/10)で精製し、さらに逆相分取HPLC (アセトニトリル/水)で精製することにより、化合物RE41-2 (195 mg, 収率48%)を得た。
ESI-MS m/z: 1186 (M + 2H) 2+
化合物RE41-2 (194 mg, 0.082 mmol)をテトラヒドロフラン (2.9 mg)および水 (1.0 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 35.7 mg)を加え、水素雰囲気下で8時間撹拌した。反応液をろ過し、減圧下、溶媒を留去し、化合物D7(183 mg, 収率98%)を得た。
ESI-MS m/z: 1141 (M + 2H) 2+
1H-NMR (400 MHz, DMSO-d6,δ): 1.21-1.45 (m, 40H), 1.76-2.18 (m, 50H), 3.00-3.09 (m, 8H), 3.40-4.20 (m, 32H), 4.47 (d, J = 8.5 Hz, 4H), 4.96 (dd, J = 3.1, 11.2 Hz, 4H), 5.21 (d, J = 3.1 Hz, 4H), 6.98 (s, 1H), 7.65 (s, 2H), 7.84 (d, J = 9.0 Hz, 4H), 8.31 (brs, 1H), 8.44 (brs, 1H), 10.11 (s, 1H).
参考例11に記載の方法で合成した化合物RE42-1 (参考例11における化合物RE11-2, 500 mg, 0.861 mmol)をN, N'-ジメチルホルムアミド (10 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 92.1 mg)を加え、水素雰囲気下で2時間撹拌した。アルゴン雰囲気下、室温にて参考例29で合成した化合物RE29-4 (97.0 mg, 0.172 mmol)、1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩 (198 mg, 1.03 mmol)、1-ヒドロキシベンゾトリアゾール1水和物 (13.2 mg, 0.086 mmol)を加えて終夜撹拌した。反応液をセライトでろ過し、減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー (クロロホルム/メタノール=85/15)で精製し、さらに逆相分取HPLC (アセトニトリル/水)で精製することにより、化合物RE42-2 (179 mg, 収率46%)を得た。
ESI-MS m/z: 1138 (M + 2H) 2+
化合物RE42-2 (175 mg, 0.077 mmol)をテトラヒドロフラン (2.6 mg)および水 (0.9 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 32.4 mg)を加え、水素雰囲気下で1時間撹拌した。反応液をろ過し、減圧下、溶媒を留去し、化合物D8(160 mg, 収率95%)を得た。
ESI-MS m/z: 1093 (M + 2H) 2+
1H-NMR (400 MHz, DMSO-d6,δ): 1.23-1.45 (m, 32H), 1.77 (s, 12H), 1.89 (s, 12H), 1.99 (s, 12H), 2.10 (s, 12H), 3.01-3.11 (m, 8H), 3.69-4.02 (m, 34H), 4.47-4.50 (m, 4H), 4.94-4.98 (m, 4H), 5.21 (d, J = 3.1 Hz, 4H), 6.92 (s, 1H), 6.94 (s, 2H), 7.87 (d, J = 9.4 Hz, 2H), 7.92 (d, J = 8.5 Hz, 2H), 8.33 (brs, 2H), 8.50 (brs, 2H).
参考例13に記載の方法で合成した化合物RE43-1 (参考例13における化合物RE13-2, 500 mg, 0.784 mmol)をN, N'-ジメチルホルムアミド (10 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 92.1 mg)を加え、水素雰囲気下で2時間撹拌した。アルゴン雰囲気下、室温にて参考例30で合成した化合物RE30-6 (144 mg, 0.157 mmol)、1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩 (180 mg, 0.941 mmol)、1-ヒドロキシベンゾトリアゾール1水和物 (12.0 mg, 0.078 mmol)を加えて終夜撹拌した。反応液をセライトでろ過し、減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー (クロロホルム/メタノール=80/20)で精製し、さらに逆相分取HPLC (アセトニトリル/水)で精製することにより、化合物RE43-2 (191 mg, 収率43%)を得た。
ESI-MS m/z: 1431 (M + 2H) 2+
化合物RE43-2 (186 mg, 0.065 mmol)をテトラヒドロフラン (2.8 mg)および水 (0.9 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 34.3 mg)を加え、水素雰囲気下で1時間撹拌した。反応液をろ過し、減圧下、溶媒を留去し、化合物D9(174 mg, 収率97%)を得た。
ESI-MS m/z: 1386 (M + 2H) 2+
1H-NMR (400 MHz, DMSO-d6,δ):1.25-4.02 (m, 164H), 4.18-4.26 (m, 2H), 4.47 (d, J = 8.1 Hz, 4H), 4.96 (dd, J = 3.1, 11.2 Hz, 4H), 5.21 (d, J = 3.6 Hz, 4H), 7.74-7.91 (m, 13H), 8.18 (s, 2H), 8.36 (d, J = 7.2 Hz, 2H), 10.27 (brs, 1H).
参考例31に記載の方法で合成した化合物RE44-1 (参考例31における化合物RE31-4, 150 mg, 0.228 mmol)をジクロロメタン (1.5 mL)に溶解し、室温にてトリフルオロ酢酸 (1.5 mL)を加えて4時間撹拌した。反応液を減圧濃縮し、酢酸エチルで共沸した。残渣をN, N'-ジメチルホルムアミド (3 mL)に溶解し、室温にて参考例14の化合物RE14-3 (574 mg, 0.571 mmol)、1-(3-ジメチルアミノプロピル)-3-エチルカルボジイミド塩酸塩 (109 mg, 0.571 mmol)、トリエチルアミン (0.159 mL, 1.14 mmol)、1-ヒドロキシベンゾトリアゾール1水和物 (3.50 mg, 0.023 mmol)を加えて終夜撹拌した。反応液を減圧濃縮し、残渣をシリカゲルカラムクロマトグラフィー (クロロホルム/メタノール=90/10)で精製し、さらに逆相分取HPLC (アセトニトリル/水)で精製することにより、化合物RE44-2 (242 mg, 収率44%)を得た。
ESI-MS m/z: 1216 (M + 2H) 2+
化合物RE44-2 (242 mg, 0.100 mmol)を テトラヒドロフラン/水 (4/1; 12 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 44.6 mg)を加え、水素雰囲気下で2時間撹拌した。アルゴン雰囲気下、室温にて6-マレイミドヘキサン酸 (23.2 mg, 0.110 mmol)、4-(4,6-ジメトキシ-1,3,5-トリアジン-2-イル)-4-メチルモルホリニウムクロリド (55.2 mg, 0.199 mmol)を加えて終夜撹拌した。反応液をセライトでろ過し、減圧下、溶媒を留去し、残渣をHP20レジン (アセトン/水)で精製精製することにより、化合物A2 (97.4 mg, 収率39%)を得た。
ESI-MS m/z: 1245 (M + 2H) 2+
1H-NMR (400 MHz, DMSO-d6,δ):1.14-2.16 (100H, m), 2.96-2.98 (4H, m), 3.24-3.41 (18H, m), 3.69-3.73 (4H, m), 3.83-3.91 (6H, m), 4.14-4.16 (2H, m), 4.47 (4H, d, J = 8.6 Hz), 4.96 (4H, dd, J = 3.6, 11.3 Hz), 5.21 (4H, d, J = 3.2 Hz), 7.01 (2H, s), 7.73-7.75 (2H, m), 7.83-7.94 (7H, m), 8.05-8.08 (2H, m), 8.14-8.20 (3H, m), 8.55-8.56 (2H, m), 10.24 (1H, brs).
参考例32に記載の方法で合成した化合物RE45-1 (参考例32における化合物RE32-3, 75.0 mg, 0.228 mmol)をN, N'-ジメチルホルムアミド (3.0 mL)に溶解し、室温にて参考例14の化合物RE14-3 (574 mg, 0.571 mmol)、ジイソプロピルエチルアミン (0.199 mL, 1.14 mmol)、O-(7-アザベンゾトリアゾール-1-イル)-N,N,N',N'-テトラメチルウロニウムヘキサフルオロホスファート (217 mg, 0.571 mmol)を加えて終夜撹拌した。減圧下、溶媒を留去し、残渣をシリカゲルカラムクロマトグラフィー (クロロホルム/メタノール=90/10)で精製し、さらに逆相分取HPLC (アセトニトリル/水)で精製することにより、化合物RE45-2 (202 mg, 収率38%)を得た。
ESI-MS m/z: 1152 (M + 2H) 2+
化合物RE45-2 (196 mg, 0.085 mmol)を テトラヒドロフラン/水 (4/1; 10 mL)に溶解し、室温にて10%パラジウムカーボン粉末 (含水品, 54.29%; 36.1 mg)を加え、水素雰囲気下で2時間撹拌した。アルゴン雰囲気下、室温にて6-マレイミドヘキサン酸 (19.8 mg, 0.094 mmol)、4-(4,6-ジメトキシ-1,3,5-トリアジン-2-イル)-4-メチルモルホリニウムクロリド (47.0 mg, 0.170 mmol)を加えて終夜撹拌した。反応液をセライトでろ過し、減圧下、溶媒を留去し、残渣をHP20レジン (アセトン/水)で精製することにより、化合物A3 (42.4 mg, 収率21%)を得た。
ESI-MS m/z: 1182 (M + 2H) 2+
ESI-MS m/z: 2437(M+H)+
参考例33に記載の方法で合成した化合物RE47-1 (参考例33における化合物RE33-4, 0.101 g, 0.282 mmol)を用いて、参考例15の化合物RE15-2 (0.607 g, 0.613 mmol)を用い、参考例3工程3と同様の方法によって化合物RE47-2 (0.25 g, 収率39%)を得た。
ESI-MS m/z: 2304(M+H)+
化合物RE47-2 (0.255 g, 0.111 mmol)を用いて、参考例3工程2と同様の方法によって化合物RE47-3 (0.15 g, 収率63%)を得た。
ESI-MS m/z: 2170(M+H)+
化合物RE47-3 (20.8 mg, 9.59 μmol)を用いて、参考例5工程2と同様の方法によって化合物A4 (5.5 mg, 収率24%)を得た。
ESI-MS m/z: 1182(M+2H)2+
参考例33に記載の方法で合成した化合物RE48-1 (参考例33における化合物RE33-4, 0.099g, 0.277 mmol)を用いて、参考例16工程2で合成した化合物RE16-3 (0.618 g, 0.615 mmol)を用い、参考例3工程3と同様の方法によって化合物RE48-2 (0.343 g, 収率53%)を得た。
ESI-MS m/z: 2333(M+H)+
化合物RE48-2を用いて、参考例10工程1および2と同様の方法で化合物A5 (6.9 mg, 収率28%)を得た。
ESI-MS m/z: 2392(M+H)+
ESI-MS m/z: 2480(M+HCOO)-
参考例10に記載の方法で合成した化合物D1 (23.6 mg, 9.46 μmol)とN-(2-アミノエチル)マレイミド トリフルオロ酢酸塩 (シグマアルドリッチ社製, 7.21 mg, 0.028 μmol)を用いて参考例3工程3と同様の方法で化合物A7 (9.1 mg, 収率36%)を得た。
ESI-MS m/z: 1310(M+2H)2+
参考例7に記載の方法で合成した化合物RE51-1 (0.122 g, 0.054 mmol)と、バイオコンジュゲート・ケミストリー (Bioconjugate Chemistry), 第22巻, 690-699頁, 2011年に記載された方法と同様の方法を用いて合成したヘキサン酸モノベンジルエステルを用い、参考例4工程1と同様の方法で、化合物RE51-2 (0.076 g, 収率56%)を得た。
ESI-MS m/z: 2503(M+H)+
化合物RE51-2 (0.076 g, 0.03 mmol)を用いて参考例3工程1と同様の方法で化合物RE51-3 (0.030 g, 収率40%)を得た。
ESI-MS m/z: 2412(M+H)+
ESI-MS m/z: 1581 (M - H)-
参考例46に記載の方法で合成した化合物D10 (0.2011 g, 0.079 mmol)を用いて、参考例10工程3と同様の方法で化合物RE53-1 (0.129 g, 収率55%)を得た。
ESI-MS m/z: 2972 (M+HCOO)-
化合物RE53-1(0.129 g, 0.044 mmol)を用いて、参考例10工程4と同様の方法で化合物RE53-2の粗製生物を得た。
ESI-MS m/z: 1535 (M+HCOOH-2H)2-
化合物RE53-2 (0.0467 g, 0.013 mmol)を用いて、参考例10工程5と同様の方法で、化合物C2(19.4 μmol/g, 収率35%)を得た。
参考例10に記載の方法で合成した化合物D1 (100 mg, 0.040mmol) および参考例17の化合物RE17-2を用い、参考例10工程3と同様の方法で化合物RE54-1 (90 mg, 収率76%) を得た。
ESI-MS m/z: 1335 (M-DMTr+2H)2+
化合物RE54-1 (90 mg, 0.030 mmol) を用い、参考例10工程4と同様の方法で化合物RE54-2の粗生成物を得た。
ESI-MS m/z: 1558 (M+HCOOH-2H)2-
化合物RE54-2の粗生成物を用い、参考例10工程5と同様の方法で化合物C3 (21.5 μmol/g, 2段階収率32%) を得た。
参考例46に記載の方法で合成した化合物D10 (100 mg, 0.039 mmol) および参考例17で合成した化合物RE17-2を用い、参考例10工程3と同様の方法で化合物RE55-1 (90 mg, 収率76%) を得た。
ESI-MS m/z: 1356 (M+2H)2+ 脱DMTr体として検出
化合物RE55-1 (90 mg, 0.030 mmol) を用い、参考例10工程4と同様の方法で化合物RE55-2の粗生成物を得た。
ESI-MS m/z: 1579 (M+HCOOH-2H)2-
化合物RE55-2の粗生成物を用い、参考例10工程5と同様の方法で化合物C4 (17.0 μmol/g, 2段階収率26%) を得た。
参考例46に記載の方法で合成した化合物D10 (100 mg, 0.039 mmol) および参考例18の工程2で合成した化合物RE18-3を用い、参考例10工程3と同様の方法で化合物RE56-1 (50 mg, 収率42%) を得た。
ESI-MS m/z: 1363 (M+2H)2+ 脱DMTr体として検出
化合物RE56-1 (50 mg, 0.017 mmol) を用い、参考例10工程4と同様の方法で化合物RE56-2の粗生成物を得た。
ESI-MS m/z: 1587 (M+HCOOH-2H)2-
化合物RE56-2の粗生成物を用い、参考例10工程5と同様の方法で化合物C5 (0.5 μmol/g, 2段階収率1%) を得た。
参考例46に記載の方法で合成した化合物D10 (100 mg, 0.039 mmol) および参考例19の化合物RE19-2を用い、参考例10工程3と同様の方法で化合物RE57-1 (40 mg, 収率30%) を得た。
ESI-MS m/z: 1532 (M+2H)2+ 脱DMTr体として検出
化合物RE57-1(40 mg, 0.012 mmol)を用い、参考例10工程4と同様の方法で化合物RE57-2の粗生成物を得た。
ESI-MS m/z: 1582 (M+2H)2+
脱DMTr体として検出
化合物RE57-2の粗生成物を用い、参考例10工程5と同様の方法で化合物C6 (0.2 μmol/g, 2段階収率1%) を得た。
参考例10に記載の方法で合成した化合物D1 (70 mg, 0.028 mmol) および参考例21の化合物RE21-3を用い、参考例10工程3と同様の方法で化合物RE58-1 (58 mg, 収率77%) を得た。
ESI-MS m/z: 1341 (M+2H)2+
化合物RE58-1 (58 mg, 0.022 mmol) をメタノール (0.15 mL) に溶解し、ジャーナルオブオーガニックケミストリー(Journal of Organic Chemistry), 第74巻, 6837-6842頁, 2009年に記載された方法で合成した参考例17の化合物RE17-1 (16.9 mg, 0.032 mmol)、1 mol /L SODIUM L-ASCORBATE水溶液 (0.022 mL, 0.022 mmol)、20 mmol/L 硫酸銅(II)水溶液 (0.011 mL, 0.22 μmol)、及び10 mmol/L Tris(2-benzimidazolylmethyl)amine / DMSO溶液 (0.022 mL, 0.22μmol)を加え、室温にて3時間撹拌した。反応液をシリカゲルカラムクロマトグラフィー(クロロホルム/メタノール=80/20)にて精製し、化合物RE58-2 (7 mg, 収率10%) を得た。
ESI-MS m/z: 1450 (M+2H)2+ 脱DMTr体として検出
化合物RE58-2 (10 mg, 3.13 μmol) を用い、参考例10工程4と同様の方法で化合物RE58-3の粗生成物を得た。
ESI-MS m/z: 1500 (M+2H)2+ 脱DMTr体として検出
化合物RE58-3の粗生成物を用い、参考例10工程5と同様の方法で化合物C7 (8.4 μmol/g,収率27%) を得た。
参考例46に記載の方法で合成した化合物D10 (74.1 mg, 0.029 mmol)と参考例22の化合物RE22-2 (15 mg, 0.027 mmol)を用いて、参考例3工程3と同様の方法、またはバイオコンジュゲートケミストリー, 第26巻,1451-1455頁, 2015年に記載の方法で化合物RE59-1の粗製生物を得た。
ESI-MS m/z: 1392(M +H)+, 脱DMTr体として検出
化合物RE59-1 (0.083 g, 0.027 mmol)を用いて、国際公開公報2015105083号に記載の方法により化合物RE59-2の粗製生物を得た。
ESI-MS m/z: 2669(M+H)+ , 脱DMTr体として検出
化合物RE59-2 (0.08 g, 0.027 mmol)を用いて、参考例10工程4と同様の方法で化合物RE59-3の粗製生物を得た。
ESI-MS m/z: 1556(M+HOOH-2H)2-
1H-NMR (400 MHz, MeOD):δ1.45-1.86 (48H, m), 1.93 (12H, s), 1.94 (12H, s), 2.02 (12H, s), 2.13 (12H, s), 2.16-2.28 (17H, m), 2.48 (4H, s), 3.10-3.16 (6H, m), 3.36-3.56 (19H, m), 3.77 (6H, s), 3.80-3.89 (6H, m), 3.98-4.35 (30H, m), 4.53-4.59 (4H, m), 4.66-4.72 (1H, m), 5.04-5.10 (4H, m), 5.31-5.36 (4H, m), 6.81-6.88 (4H, m), 7.17-7.23 (1H, m), 7.26-7.32 (6H, m), 7.38-7.44 (2H, m), 7.54 (2H, br s), 7.90 (1H, br s).
化合物D1、および表Z-1記載の構造または参考例20の化合物RE20-4を用い、参考例59工程1および工程2と同様の方法にて、表P-1および表P-2に記載した化合物を得た。
本実施例により合成した化合物の質量分析結果を表P-3に示す。
表P-1および表P-2に記載した化合物を用いて、参考例61と同様の方法で表Q-1および表Q-2記載の化合物を得た。
本実施例により合成した化合物の担持量を表Q-3に示す。
参考例化合物A1と、モレキュールズ (Molecules), 第17巻, 13825-13843頁, 2012年に記載された方法で合成した末端チオール化されたオリゴヌクレオチドを加えて、室温にて4時間静置した。反応混合物に炭酸ナトリウムを加え、4℃で一晩静置した。陰イオン交換クロマトグラフィー (GE Healthcare, MonoQ 5/50GL, 10μm, 5.0 mm x 50 mm、A液: 10 mmol/L Tris緩衝液/30%アセトニトリル, B液: 10 mmol/L Tris緩衝液/30%アセトニトリル/1 mol/L NaBrによるグラジエント)あるいは逆相液体クロマトグラフィー (ウォーターズ, X BridgeC18, 5μm, 4.6 mmx250 mm、0.1 mol/L酢酸トリエチルアンモニウム緩衝液, B液:アセトニトリルによるグラジエント)のいずれかの方法で精製することにより化合物1-1を得た。センス鎖配列は、表R-1~表R-2に記載されているとおりである。
工程1で合成した化合物1-1(3'-APCS-ssRNA)を、混合緩衝液(100 mmol/L酢酸カリウム、30 mmol/L 2-[4-(2-ヒドロキシエチル)ピペラジン-1-イル]エタンスルホン酸、HEPES)-KOH(pH 7.4)、2 mmol/L酢酸マグネシウム)にて濃度調整(50 μmol/L)した。前述センス鎖とアンチセンス鎖(50 μmol/L)を各々等量混合し、80 ℃で10分間静置した。アンチセンス鎖配列は、表R-3~表R-4に記載されているとおりである。徐々に温度を下げ、37 ℃で1時間静置し、2本鎖の化合物1-2を得た。
実施例1とは塩基配列の異なるオリゴヌクレオチドを用い、実施例1と同様にして、化合物2-1~10-1および化合物2-2~10-2を合成した。
参考例化合物D5を用いて、モレキュールズ(Molecules)、第17巻、13825-13843頁、2012年に記載された方法で合成した末端がアミノ基で修飾されたオリゴヌクレオチドを加えて、バイオコンジュゲートケミストリー, 第22巻,1723-1728頁, 2011年もしくはバイオコンジュゲートケミストリー, 第26巻,1451-1455頁, 2015年に記載の方法にて反応させた。実施例1に記載した方法で精製することにより、化合物11-1を得た。
実施例1の工程2と同様の方法にて、化合物11-2を得た。
実施例11とは塩基配列の異なるオリゴヌクレオチドを用い、実施例11と同様にして、化合物12-1~43-1および化合物12-2~43-2を合成した。
二本鎖核酸は、表1-1~表1~13に記載のものをシグマアルドリッチ社にて合成して利用した。具体的には配列番号2~644に示すリボヌクレオチドから成るセンス鎖、配列番号645~1287に示すリボヌクレオチドから成るアンチセンス鎖をアニーリングさせた二本鎖核酸で構成される(配列番号n(n=2~644)に示すセンス鎖と配列番号[n+643]に示すアンチセンス鎖とが対をなす)。384ウェルの培養プレートに、二本鎖核酸とRNAiMaxトランスフェクション試薬(Thermo Fisher Scientific社製、カタログ番号13778150)をOpti-MEM I Reduced Serum Medium培地(Thermo Fisher Scientific社製、カタログ番号31985070)で希釈したsiRNA/RNAiMax混合液20 μLを添加した。ヒト卵巣癌由来の細胞株であるRMG-I細胞(JCRB細胞バンク、JCRB0172)を、10,000細胞/40 μL/ウェルとなるよう各々384ウェルの培養プレートに播種し、37℃、5% CO2条件下で24時間培養した。培地は、10%ウシ胎仔血清(Thermo Fisher Scientific社製、カタログ番号10091-148)を含むHam's F-12 Nutrient Mix培地(Thermo Fisher Scientific社製、カタログ番号11765-047)を用いた。二本鎖核酸の終濃度は1 nMとなるようにした。その後、細胞をDPBS, no calcium, no magnesium(Thermo Fisher Scientific社製、カタログ番号14190-144)で洗浄し、各々のプレートからTaqMan(登録商標) Fast Cells-to-CT(商標)キット(Thermo Fisher Scientific社製、カタログ番号4399003)を用いて以下の方法でcDNAを合成した。Lysis solution(キット内容物)とDNase I(キット内容物)を100:1で混合した溶液を10 μLずつ添加し、5分間混合した。Stop Solution(キット内容物)を1 μLずつ添加、2分間混合し、RNA抽出液とした。5 μLの2×RT Buffer(キット内容物)、0.5 μLの20×RT Enzyme Mix(キット内容物)、2.5 μLのNuclease-free Water、2 μLのRNA抽出液を混合し、これを37℃、60分間、95℃、5分間で反応させ、cDNAを合成した。このcDNA 2 μLをMicroAmp(登録商標) EnduraPlate(商標) Optical 384-Well Clear Reaction Plates with Barcode(Thermo Fisher Scientific社製、カタログ番号4483285)に加え、更に5 μLのTaqMan(登録商標) Fast Universal PCR Master Mix(Thermo Fisher Scientific社製、カタログ番号4352042)、2.5 μLのDISTILLED WATER (ULTRAPURE)(Thermo Fisher Scientific社製、カタログ番号10977015)、0.25 μLのhuman APCSプローブ、0.25 μLのhuman ACTBプローブを添加した。QuantStudio(商標) 7 Flexを用いて、human APCS遺伝子及びhuman ACTB(actin beta)遺伝子のリアルタイムPCRをおこなった。ACTBは構成的発現遺伝子であり内部対照として測定し、APCS遺伝子発現量を補正した。siRNAを添加せずにトランスフェクション試薬だけでRMG-I細胞を処理した時のAPCS mRNA量を1.0として、各siRNAを導入した時のAPCS mRNA相対発現量値を算出した。本実験を2回おこない、APCS mRNA相対発現量値の最小値を表1-1~表1-13に示した。
合成した二本鎖核酸の終濃度は1 nM、又は0.1 nMとなるようにし、当該二本鎖核酸をRMG-1細胞に導入し、24時間培養した以外は、参考試験例1と同様の操作を行って、APCS mRNA相対発現量を算出した。本実験を4回おこない、APCS mRNA相対発現量値の中央値を表M1-1~表M1-2に示した。表M1-1~表M1-2において、N(M)は2'-O-methyl-RNAを、N(F)は2'-F-RNAを示す。
二本鎖核酸は、表M1-3に記載のものをジーンデザイン社にて合成して利用した。具体的には配列番号2019~2043に示すリボヌクレオチドから成るセンス鎖、配列番号2044~2068に示すリボヌクレオチドから成るアンチセンス鎖をアニーリングさせた二本鎖核酸で構成される(配列番号n(n=2019~2043)に示すセンス鎖と配列番号[n+25]に示すアンチセンス鎖とが対をなす)。96ウェルの培養プレートに、各二本鎖核酸とRNAiMaxトランスフェクション試薬(Thermo Fisher Scientific社製、カタログ番号13778150)をOpti-MEM I Reduced Serum Medium培地(Thermo Fisher Scientific社製、カタログ番号31985070)で希釈したsiRNA/RNAiMax混合液20 μLを添加した。ヒト卵巣癌由来の細胞株であるRMG-I細胞(JCRB細胞バンク、JCRB0172)を、10,000細胞/60 μL/ウェルとなるよう各々96ウェルの培養プレートに播種し、37℃、5% CO2条件下で24時間培養した。培地は、10%ウシ胎仔血清(Thermo Fisher Scientific社製、カタログ番号10091-148)を含むHam's F-12 Nutrient Mix培地(Thermo Fisher Scientific社製、カタログ番号11765-047)を用いた。二本鎖核酸の終濃度は1または0.1 nMとなるようにした。その後、細胞をDPBS, no calcium, no magnesium(Thermo Fisher Scientific社製、カタログ番号14190-144)で洗浄し、各々のプレートからスーパープレップセルリシスアンドアールティーキットフォーキューピーシーアール (東洋紡社製、カタログ番号 SCQ-101)を用いて、製品に添付された説明書に記載された方法に従い全RNAの回収と、得られた全RNAを鋳型とする逆転写反応によるcDNAの作製を行った。このcDNA 3μLをMicroAmpOptical 384ウェルプレート(アプライドバイオシステムズ社製、カタログ番号:4309849)に加え、更に10μLのTaqMan Gene Expression Master Mix(アプライドバイオシステムズ社製、カタログ番号4369016)、6μLのUltraPure Distilled Water(サーモフィッシャーサイエンティフィック社製、カタログ番号:10977-015)、1μLのhuman APCSプローブあるいは1μLのhuman GAPDH(D-glyceraldehyde-3-phosphate dehydrogenase)プローブを添加し、クオントスタジオ12ケーフレックスリアルタイムピーシーアールシステム (サーモフィッシャーサイエンティフィック社製)を用いて、human APCS遺伝子およびhuman GAPDH遺伝子のリアルタイムPCRをおこなった。GAPDHは構成的発現遺伝子であり内部対照として測定し、APCS遺伝子発現量を補正した。siRNAを添加せずにトランスフェクション試薬だけでRMG-I細胞を処理した時のAPCS mRNA量を1.0として、各siRNAを導入した時のAPCS mRNA相対発現量値を算出した。本実験を2回おこない、APCS mRNA相対発現量値の平均値を表M1-3に示した。なお、表M1-3中、N(M)は2'-O-メチル修飾RNA、N(F)は2'-フッ素修飾RNAを示す。
実施例1~43で得られた各核酸複合体について、ヒト初代肝細胞におけるin vitroノックダウン活性を測定した。この核酸複合体の終濃度が300, 30, 3または0.3 nmol/Lとなるように、オプティメム (Opti-MEM)(サーモフィッシャーサイエンティフィック社製、カタログ番号31985)で希釈した各核酸複合体を、96ウェルのコラーゲンIコート培養プレート (コーニング社製、カタログ番号:356407) に20 μLずつ分注した後、プレーティングメディウム (バイオプレディックインターナショナル社製、カタログ番号 LV0304-2)に懸濁させたヒト初代肝細胞(バイオプレディックインターナショナル社製、カタログ番号HEP187)を、10,000細胞/80μL/ウェルとなるよう播種し、37℃、5%CO2条件下で6時間培養したのちに、培養上清を注意深く除去し、インキュベーションメディウム (バイオプレディックインターナショナル社製、カタログ番号LV0304-2)を添加して、各核酸複合体をヒト初代肝細胞に供した。また陰性対照の群として20 μLのオプティメムを供したヒト初代肝細胞を用いた各核酸複合体を添加した細胞を37℃の5% CO2インキュベーター内で18時間培養し、氷冷したリン酸緩衝化生理食塩水(DPBS)(ナカライテスク社製、カタログ番号14249-95)で洗浄し、各々のプレートからスーパープレップセルリシスアンドアールティーキットフォーキューピーシーアール (東洋紡社製、カタログ番号 SCQ-101)を用いて、製品に添付された説明書に記載された方法に従い全RNAの回収と、得られた全RNAを鋳型とする逆転写反応によるcDNAの作製を行った。このcDNA 3μLをMicroAmpOptical 384ウェルプレート(アプライドバイオシステムズ社製、カタログ番号:4309849)に加え、更に10μLのTaqMan Gene Expression Master Mix(アプライドバイオシステムズ社製、カタログ番号4369016)、6μLのUltraPure Distilled Water(サーモフィッシャーサイエンティフィック社製、カタログ番号:10977-015)、1μLのhuman APCSプローブ(アプライドバイオシステムズ社製) あるいは1μLのhuman GAPDHプローブ(アプライドバイオシステムズ社製)を添加し、クオントスタジオ12ケーフレックスリアルタイムピーシーアールシステム (サーモフィッシャーサイエンティフィック社製)を用い、添付された使用説明書に記載された方法に従ってhuman APCS遺伝子およびhuman GAPDH遺伝子のリアルタイムPCRをおこなった。GAPDHは構成的発現遺伝子であり内部対照として測定し、APCS発現量を補正した。同様に測定した陰性対照におけるAPCSのmRNAの準定量値を1.0として、各核酸複合体を導入した時のAPCS mRNA相対発現量を算出した。本実験を2回おこない、APCS mRNA相対発現量の平均値を表S1に示した。
実施例1~43で得られた核酸複合体について、以下の方法によりin vivoノックダウン試験を実施した。なお、各核酸複合体は試験に合わせてリン酸緩衝化生理食塩水(DPBS)(ナカライテスク社製)で希釈して用いた。マウスはヒト肝細胞が移植されたPXBマウス(PXB/human Hepatocyte repopulated cDNA-uPA/SCID Tg、フェニックスバイオ社より入手)を使用し、ヒトAPCSに対する核酸複合体の効果を評価した。PXBマウスを馴化飼育後、各核酸複合体をマウスに皮下投与した。投与用量は10 mg/kgであり、投与用量は5 mL/kgとした。コントロール群としてはDPBSのみをマウスに皮下投与した。投与6日前および投与後1、2、3、6、10、13日に採血を行い、1500×gで遠心分離することで血清を得た。これらの血清をヒトSAP ELISA(SAP, Human, ELISA kit 、HycultBiotech社製、#HK331-02)を用いて、血中ヒトAPCS量を評価した。ELISAは付属されたマニュアルに沿って実施した。各マウス群の血中ヒトAPCS濃度の推移を、図1に示した。DPBS投与群に対する核酸複合体投与群におけるAPCS発現比率(%)を表S2に示す。
Claims (27)
- 下記式2で表される構造を有する、請求項1に記載の核酸複合体。
式2:
X、L1、L2およびS3は、それぞれ前記と同義であり、
P1、P2、P3、P4、P5およびP6、ならびにT1およびT2は、それぞれ独立して、存在しないか、または、-CO-、-NH-、-O-、-S-、-O-CO-、-S-CO-、-NH-CO-、-CO-O-、-CO-S-もしくは-CO-NH-であり、
Q1、Q2、Q3およびQ4は、それぞれ独立して、存在しないか、または、置換もしくは無置換の炭素数1~12のアルキレンまたは-(CH2CH2O)n-CH2CH2-であり、nは0~99の整数であり、
B1およびB2は、それぞれ独立して、結合手であるか、または、下記式2-1で表されるいずれかの構造であり、各構造における末端の黒丸点は、それぞれ、P2またはP3あるいはP5またはP6との結合点であり、m1、m2、m3およびm4は、それぞれ独立して、0~10の整数であり、
式2-1:
q1、q2、q3およびq4は、それぞれ独立して、0~10の整数であり、
ただし、p1およびp2がそれぞれ2または3の整数であるとき、それぞれのP3およびP6、Q2およびQ4、T1およびT2ならびにL1およびL2は、同一または異なっていてもよく、q1~q4が2~10のとき、それぞれの-[P2-Q1]-,-[Q2-P3]-,-[P5-Q3]-,-[Q4-P6]-の組み合わせは同一または異なっていてもよい。) - P1およびP4が、それぞれ独立して、-CO-NH-、-NH-CO-または-O-である請求項2に記載の核酸複合体。
- P1が-CO-NH-、-NH-CO-または-O-である請求項6に記載の核酸複合体。
- 前記糖リガンドが、N-アセチルガラクトサミンである、請求項1~9のいずれか1項に記載の核酸複合体。
- 前記二本鎖核酸が、修飾ヌクレオチドを含む、請求項1~10のいずれか1項に記載の核酸複合体。
- センス鎖の3'末端およびアンチセンス鎖の5'末端は、平滑末端を形成する、請求項1~11のいずれか1項に記載の核酸複合体。
- 前記二本鎖核酸が、糖部修飾ヌクレオチドを含む、請求項11に記載の核酸複合体。
- Xが、表1-1~表1-13に記載のセンス鎖/アンチセンス鎖から成る群から選択される1対のセンス鎖/アンチセンス鎖である、請求項1~14のいずれか1項に記載の核酸複合体。
- Xが、表M1-1~表M1-3、表R-1~表R-2および表R-3~表R-4に記載のセンス鎖/アンチセンス鎖から成る群から選択される1対のセンス鎖/アンチセンス鎖である、請求項1~14のいずれか1項に記載の核酸複合体。
- 請求項1~16のいずれか1項に記載の核酸複合体を含む、医薬組成物。
- 細胞内に導入するための、請求項17に記載の医薬組成物。
- 静脈内投与または皮下投与される、請求項17または18に記載の医薬組成物。
- 請求項1~16のいずれか1項に記載の核酸複合体または請求項17~19のいずれか1項に記載の医薬組成物を、それを必要とする患者に投与することを含む、疾患の治療または予防方法。
- 請求項1~16のいずれか1項に記載の核酸複合体または請求項17~19のいずれか1項に記載の医薬組成物を用いて二本鎖核酸を細胞内に導入することを含む、APCS遺伝子の発現を抑制する方法。
- 請求項1~16のいずれか1項に記載の核酸複合体または請求項17~19のいずれか1項に記載の医薬組成物を哺乳動物に投与することを含む、アミロイド関連疾患の治療方法。
- 請求項1~16のいずれか1項に記載の核酸複合体または請求項17~19のいずれか1項に記載の医薬組成物を含む、アミロイド関連疾患の治療に用いるための医薬。
- 請求項1~16のいずれか1項に記載の核酸複合体または請求項17~19のいずれか1項に記載の医薬組成物を含む、アミロイド関連疾患の治療剤。
- アミロイド関連疾患が、APCSを含んだアミロイド線維により媒介される障害によって引き起こされる疾患である、請求項22に記載の治療方法。
- アミロイド関連疾患が、APCSを含んだアミロイド線維により媒介される障害によって引き起こされる疾患である、請求項23に記載の医薬。
- アミロイド関連疾患が、APCSを含んだアミロイド線維により媒介される障害によって引き起こされる疾患である、請求項24に記載の治療剤。
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US17/298,185 US20220127605A1 (en) | 2018-11-30 | 2019-12-02 | Nucleic acid conjugate |
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WO2024172057A1 (ja) * | 2023-02-15 | 2024-08-22 | 国立大学法人 東京医科歯科大学 | 人工miRNA構築物 |
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CA3121449A1 (en) | 2020-06-04 |
AU2019390097A1 (en) | 2021-07-15 |
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