WO2013014997A1 - 自己磁性金属サレン錯体化合物 - Google Patents
自己磁性金属サレン錯体化合物 Download PDFInfo
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- WO2013014997A1 WO2013014997A1 PCT/JP2012/062301 JP2012062301W WO2013014997A1 WO 2013014997 A1 WO2013014997 A1 WO 2013014997A1 JP 2012062301 W JP2012062301 W JP 2012062301W WO 2013014997 A1 WO2013014997 A1 WO 2013014997A1
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- Prior art keywords
- metal
- salen complex
- following
- hydrogen
- complex compound
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- 239000002207 metabolite Substances 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
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- 210000004877 mucosa Anatomy 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 210000002569 neuron Anatomy 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 238000001668 nucleic acid synthesis Methods 0.000 description 1
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 1
- 230000036407 pain Effects 0.000 description 1
- 208000028169 periodontal disease Diseases 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
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- 239000002861 polymer material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 125000006239 protecting group Chemical group 0.000 description 1
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- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000002693 spinal anesthesia Methods 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000002076 thermal analysis method Methods 0.000 description 1
- 230000014616 translation Effects 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
- ILWRPSCZWQJDMK-UHFFFAOYSA-N triethylazanium;chloride Chemical compound Cl.CCN(CC)CC ILWRPSCZWQJDMK-UHFFFAOYSA-N 0.000 description 1
- 230000004614 tumor growth Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- 238000005303 weighing Methods 0.000 description 1
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/28—Compounds containing heavy metals
- A61K31/295—Iron group metal compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K41/00—Medicinal preparations obtained by treating materials with wave energy or particle radiation ; Therapies using these preparations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/06—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations
- A61K49/08—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by the carrier
- A61K49/10—Organic compounds
- A61K49/101—Organic compounds the carrier being a complex-forming compound able to form MRI-active complexes with paramagnetic metals
- A61K49/103—Organic compounds the carrier being a complex-forming compound able to form MRI-active complexes with paramagnetic metals the complex-forming compound being acyclic, e.g. DTPA
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C251/00—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton
- C07C251/02—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups
- C07C251/04—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C251/06—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of a saturated carbon skeleton
- C07C251/08—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of a saturated carbon skeleton being acyclic
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C251/00—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton
- C07C251/02—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups
- C07C251/04—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C251/10—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of an unsaturated carbon skeleton
- C07C251/12—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of an unsaturated carbon skeleton being acyclic
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C251/00—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton
- C07C251/02—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups
- C07C251/24—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to carbon atoms of six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
- C07F15/02—Iron compounds
- C07F15/025—Iron compounds without a metal-carbon linkage
Definitions
- the present invention relates to a novel metal-salen complex compound having self-magnetism.
- a drug is administered in vivo and reaches an affected area and causes a therapeutic effect by exerting a pharmacological effect at the affected area, but it does not become treatment even if the drug reaches tissues other than the affected area (that is, normal tissues) .
- a technique for guiding a drug to an affected area is called drug delivery, which is a field in which research and development are actively conducted in recent years.
- This drug delivery has at least two advantages. One is that a sufficiently high drug concentration can be obtained in the affected tissue. The pharmacological effect does not occur unless the drug concentration in the affected area is above a certain level, and therapeutic effects can not be expected at low concentrations.
- the drug can be induced only to the affected tissue to suppress side effects on normal tissue.
- anti-cancer drugs suppress cell proliferation of active cancer cells with cell division, so even in normal tissues cell proliferation such as bone marrow or hair root, gut mucosa, etc. Suppress.
- alkyl antineoplastic agents are a general term for anti-cancer agents having the ability to bind an alkyl group (-CH 2 -CH 2- ) to a nucleic acid protein or the like.
- DNA is alkylated to inhibit DNA replication leading to cell death. This action works independently of the cell cycle, extends to cells in the G 0 phase, strongly acts on cells in which proliferation is active, and easily damages bone marrow, digestive tract mucosa, germ cells, hair roots and the like.
- antimetabolite antineoplastic agents are compounds that have similar structures to nucleic acid and metabolites in the process of protein synthesis, inhibit cells by disrupting nucleic acid synthesis, etc., and specifically for mitotic cells. Works.
- the antitumor antibiotic is a chemical substance produced by a microorganism, has an action such as inhibition of DNA synthesis, DNA strand breakage, and exhibits antitumor activity.
- microtubule inhibitors directly act on microtubules which play an important role in maintaining normal functions of cells, such as formation of spindles during cell division, arrangement of intracellular organelles and transport of substances, etc. Show an antitumor effect.
- Microtubule inhibitors affect cells and nerve cells that are active in cell division.
- Cisplatin is a representative drug but renal damage is strong and a large amount of fluid replacement is required.
- hormone-like antineoplastic agents are effective against hormone-dependent tumors.
- Molecularly targeted drugs are also therapeutics that target molecules corresponding to molecular biological characteristics specific to each malignant tumor.
- topoisomerase inhibitors are enzymes that temporarily nick DNA to change the number of strands of DNA.
- Topoisomerase I is an enzyme that nicks one strand of circular DNA and closes the nick after passing the other strand, and topoisomerase inhibitor II temporarily cleaves both strands of circular DNA. There is an enzyme that passes another double-stranded DNA between them, rejoining the nick again.
- nonspecific immunostimulants suppress the growth of cancer cells by activating the immune system.
- the dosage should be limited considering the burden on patients with these side effects.
- the pharmacological effects of the anticancer drug can not be obtained sufficiently.
- side effects can also result in the death of the patient.
- lidocaine which is an anesthetic agent
- spinal fluid diffuses in the spinal fluid, and in the worst case, reaching the spinal cord of the neck, respiratory function is stopped and serious side effects are caused. I have a concern.
- cancer treatment can be effectively performed while suppressing side effects by inducing anticancer drugs to cancer cells and concentrating on cancer cells and exerting a pharmacological effect by drug delivery. It is expected.
- drug delivery is expected to prevent the diffusion of local anesthetics to achieve sustained efficacy and reduced side effects.
- a carrier As a specific method of drug delivery, for example, there is one using a carrier. In this method, a drug is placed on a carrier that tends to be concentrated at the affected area to transport the drug to the affected area.
- a magnetic material that is considered to be a promising carrier is a method in which a carrier that is a magnetic material is attached to a drug and accumulated in the affected area by a magnetic field. (See, for example, Patent Document 1).
- the inventor of the present invention has an aptitude in a range in which a side chain for imparting positive or negative spin charge density is coupled to a basic skeleton of an organic compound, and as a whole is magnetically shared and induced to an external magnetic field. Topically applied to a region where a magnetic field is applied locally by a magnetic field from outside the body when applied to an animal or an animal, so that the originally possessed medicinal effect is exerted in that region. Proposed. Iron-salen complexes are disclosed as such agents. (See, for example, Patent Document 2).
- Non-Patent Documents 1 and 2 do not mention that the drug itself becomes magnetic.
- An object of the present invention is to provide a novel metal-salen complex compound having self magnetism and a derivative thereof.
- the present invention is characterized by being a novel metal-salen complex compound having self magnetism, represented by the following formula (I). (I)
- X and Y each represent a 5-membered ring structure including a coordinate bond between N and M, or a 6-membered ring structure thereof, and M represents Fe (iron), Cr (chromium), Mn (manganese), Co (cobalt), Ni (nickel), Mo (molybdenum), Ru (rubidium), Rh (rhodium), Pd (palladium), W (tungsten), Re (rhenium), Os (osmium), Ir (iridium), It is a divalent metal element composed of Pt (platinum), Nd (niobium), Sm (samarium), Eu (europium), or Gd (gadolinium).
- b and g are absent, and the above (I) is any of the following (i) to (iv).
- the heterocyclic structure is furan, thiophene, pyrrole, pyrrolidine, pyrazole, pyrazolone, imidazole, 2-isoimidazole, oxazole, isoxazole, thiazole, imidazole, imidazolidine, oxazoline, oxazolidine, 1,2-pyran, thiazine And
- R is hydrogen, or a chain structure or a saturated structure having 1 to 6 carbon atoms, or an unsaturated structure (alkene or alkyne) Cyclic hydrocarbon)
- B -CO (OCH 2 CH 2 ) 2 OCH 3
- C is one to which one or more of the nucleic acids consisting of adenine, guanine, thymine, cytosine and uracil are bound)
- E -NHCOH or -NR 1 R 2
- R 1 , R 2 is hydrogen, same or different, saturated structure having 1 to 6 carbon atoms, or unsaturated structure (alkene or alkyne) Chain or cyclic hydrocarbon)
- F —NHR 3 —, —NHCOR 3 , —CO 2 —R 3 , —S—S—R 3 , or —R 3 (wherein R 3 is hydrogen or a leaving group such as
- the metal-salen complex compound represented by the above-mentioned formula (I) is an organic compound having magnetic property by itself without containing a magnetic carrier. Therefore, another present invention contains this metal-salen complex as an active ingredient. It is characterized in that it is a magnetic medicine that is induced to the target tissue by being administered into the human or animal body and then irradiated with an external magnetic field.
- the metal-salen complex according to the formula (I) is effective for treating a tumor such as cancer. Therefore, another present invention is characterized in that it is an anti-tumor comprising the magnetic drug containing the magnetic drug as an active ingredient as an active ingredient.
- another aspect of the present invention is a method of inducing the affected area by irradiating an external magnetic field after administering a magnetic drug such as an anticancer agent containing the above metal-salen complex as an active ingredient into the body.
- another invention of the present invention is a method of guiding a magnetic medicine, comprising: means for applying a magnetic drug into the body, means for supplying a magnetic field to the drug applied in the body, and means for moving the magnetic field to the affected area. It is characterized by being a system.
- FIG. 1 is a schematic view showing a state in which a stick magnet is brought into contact with a square flask in which a culture medium for rat L6 cells is present.
- FIG. 1 it is a graph which shows the result of having image
- It is a perspective view of a magnetic induction device. It is a graph which shows the measurement result of MRI of the kidney which applied the magnetic field, after injecting a metal salen complex into a mouse.
- FIG. 1 is a picture of mouse tail tendon tissue showing the effect of a salen complex on melanoma growth in mice.
- FIG. 5 is a graph showing the effect of salen complex on melanoma growth in mice.
- FIG. 6 is a photomicrograph showing a histologic test to show the effect of a salen complex on melanoma growth in mice.
- the metal-salen complex compound of the formula (I) preferably has an absolute value of charge transfer of its side chain of less than 0.5 electron (e) in order to provide magnetism that can be induced by an external magnetic field.
- R 3 constituting the side chain for example, a substituted compound described in WO 2010/058280 can be used.
- the contents of this publication constitute the description of the present specification.
- the strength of the magnetic force of the metal-salen complex compound and this as an active ingredient is in the range of 0.5 to 1.5 emu / g, respectively.
- a magnetic medicine although an injection agent or a transfusion agent is mainly, powder may be sufficient.
- Physiological saline can be suitably used as a solvent for injections and infusions.
- the magnetic medicine contains metal salen complex as an active ingredient, for example, at 50% by weight or more, and also does not affect the effectiveness, physical properties and chemical properties of the metal salen complex, or less, an excipient , A stabilizer, and a second pharmaceutical ingredient.
- the metal-salen complex compounds described above can be used as anticancer agents.
- a permanent magnet or an induced magnetic field such as MRI as means for supplying a magnetic field thereto.
- the intensity of the external magnetic field is preferably in the range of 0.5 to 1.0 T, and particularly preferably in the range of 0.8 to 1.0 T.
- an MRI as well as an XY table for moving the permanent magnet.
- the magnetic field may be supplied from the body surface as a form of supplying the magnetic field to the affected part tissue, or a form in which the magnetic field generating means is installed in the blood vessel near the affected part tissue. In order to supply the magnetic field from the body surface, there is a mode in which the magnetic field is supplied from the front of the body and / or the back of the body.
- Example 1 Synthesis of Metal-Salen Complex Compound (II) (First Synthesis Example) Metal-salen complex (II) was synthesized according to the following reaction formula.
- Metal-salen complex (II) was synthesized based on the following reaction formula.
- Compound 5 was synthesized by placing 3.4 g of 3-methylacetylacetone (Compound 4) and 0.9 g of ethylenediamine (Compound 3) in anhydrous methanol (50 ml) while adjusting to pH 6 with acetic acid on ice. The resulting solution was refluxed for 15 minutes and evaporated to half volume. Thereafter, the same volume of water was added to precipitate, and 1.4 g of a white compound (compound 5) was synthesized.
- Metal-salen complex (II) was synthesized based on the following reaction formula.
- Iron (II) acetate (0.83 g, 4.8 mmol) and degassed methanol (48 ml) were charged into a reaction vessel under a nitrogen atmosphere, and acetylacetone (0.95 g, 9.5 mmol) was added. After stirring for 15 minutes under reflux, the mixture was allowed to cool. The precipitated crystals were filtered and washed with cold methanol (10 ml). Thereafter, it was dried under reduced pressure to obtain 1.07 g of an intermediate.
- an intermediate (240 mg, 0.75 mmol), a coordinating atom (210 mg, 0.75 mmol) and degassed decalin (10 ml) were charged into a reaction vessel, and stirred under reflux for 30 minutes. After allowing to cool, the precipitated solid was filtered and then taken out and washed with degassed cyclohexane (3 ml). Drying under reduced pressure was carried out to obtain 101 mg of the product (metal-salen complex compound (III)).
- the obtained compound 8 is charged with iron (II) acetate (0.83 g, 4.8 mmol) and degassed methanol (48 ml) in a reaction vessel, and acetylacetone (0.95 g, 9.5 mmol) is added. added. After stirring for 15 minutes under reflux, the precipitated crystals were filtered to obtain a brown target compound (metal-salen complex compound (IV)).
- Example 4 The compounds of (V) to (XI) are synthesized by the method described in WO 2010/058280, pages 43 to 47.
- the addition of the side chain bromine or methoxyl group to the main skeleton is a protective group which is bonded to the benzene ring at the para position with the OH group of the benzene ring when forming a metal complex bond to salen.
- (NHBoc) is substituted by bromine or methoxyl group.
- the following compounds are used as starting materials in place of paranitrophenol.
- Example 5 It is examined whether the aqueous solution of each of the metal-salen complexes (II) to (XI) is trapped by a permanent magnet while being circulated by a glass tube by a pump.
- the circulation speed of the aqueous solution of the metal-salen complex is 100 mm / s, the diameter of the glass tube is 1.3 mm, the distance between the surface of the glass tube and the permanent magnet is 1.35 mm, and the concentration of the compound is 10 mg / ml.
- the magnet uses a commercially available bar magnet (diameter 20 mm, length 150 mm, model No. N50 of Shin-Etsu Chemical, maximum magnetic flux density 0.8 T) having a circular cross section. Make sure that each metal complex is trapped in the area that wraps on the magnet.
- FIG. 1 is a schematic view showing a state in which a stick magnet is brought into contact with a square flask in which a culture medium for rat L6 cells is present. Next, after 48 hours, one end to the other end of the bottom of the square flask were photographed, and the number of cells was calculated. The results are shown in FIG. In FIG. 2, “proximal to the magnet” indicates the inside of the projected area of the end face of the magnet on the bottom of the square flask, and “distal to the magnet” indicates an area on the bottom of the square flask opposite to the end face of the magnet.
- the system including the metal-salen complex and the magnetism-generating means makes it possible to concentrate the drug on the target affected area or tissue of the individual.
- a pair of magnets 230, 232 facing each other in the direction of gravity is supported by a stand 234 and a clamp 235, and a metal plate 236 is placed between the magnets.
- a metal plate particularly an iron plate
- This induction device can make the generated magnetic force variable by using an electromagnet instead of a magnet.
- the pair of magnetic force generating means can be moved in the XYZ directions, and the magnetic force generating means can be moved to the target position of the solid on the table.
- a metal-salen complex (drug concentration 5 mg / ml (15 mmol)) described above is injected intravenously into a mouse weighing approximately 30 g and laparotomized, and the mouse is placed on an iron plate so that the right kidney is between the pair of magnets. Put.
- the magnet used is Shin-Etsu Chemical Co., Ltd., product number: N50 (neodymium based permanent magnet), and the residual magnetic flux density is 1.39 to 1.44T.
- the magnetic field applied to the right kidney is about 0.3 T
- the magnetic field applied to the left kidney is about 1/10 thereof.
- a magnetic field was applied to the right kidney of the mouse along with the left kidney and the kidney without a magnetic field (Control), and the SNR was measured in T1 mode and T2 mode by MRI after 10 minutes.
- FIG. 4 it was confirmed that the right kidney (RT) to which a magnetic field was applied was able to retain the drug in the tissue as compared to the left kidney (LT) and Control.
- Figure 5 shows the effect of the salen complex on melanoma growth in mice.
- Melanoma was formed in vivo (in vitro) in the mouse tail tendon by local transplantation of cultured melanoma cells (clone M3 melanoma cells).
- the salen complex was intravenously administered (50 mg / kg) from the tail tendon vein, and a magnetic field was applied locally using a commercially available rod magnet (630 mT, cylindrical neodymium magnet, 150 mm in length, 20 mm in diameter). The application of the bar magnet was performed by gently contacting the melanoma sites for 3 hours immediately after injecting the salen complex for 10-14 days.
- a commercially available rod magnet 630 mT, cylindrical neodymium magnet, 150 mm in length, 20 mm in diameter
- the application of the bar magnet was performed for a 2-week growth period on mouse tail tendons of 150 mm or less, such that the magnetic field strength is maximal at the site where melanoma extension is expected. Twelve days after the initial injection of the metal-salen complex, melanoma extension was assessed by assessing the melanoma-stained sites. As shown in FIG. 6, in the saline group (saline) injected with saline instead of metal-salen complex, the melanoma expansion was maximal (100 ⁇ 17.2%).
- the histologic test was performed using hematoxylin-eosin staining (HE) and immunohistological staining (Ki, Cyclin D1) using the tumor growth markers of the tissue section, the amti-Ki-67 antibody and the amti-Cyclin D1 antibody. It went by).
- HE hematoxylin-eosin staining
- Ki immunohistological staining
- SC metal-salen complex
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Abstract
Description
水素であるか、又は、
下記(A)~(G)、及び、-C(=O)m(mは水素であるか、又は、下記(A)~(G)の何れかである。)の何れかであり、
(ii) (c,d)、及び、(f,e)は、それぞれ、ヘテロ環式構造の一部を形成して、前記(I)化合物と前記ヘテロ環式構造との縮合体を構成させるものであり、
a、b、g、hは、それぞれ、
水素であるか、又は、
下記(A)~(G)、及び、-C(=O)m(mは水素であるか、又は、下記(A)~(G)の何れかである。)の何れかであり、
前記ヘテロ環式構造構造は、フラン、チオフェン、ピロール、ピロリジン、ピラゾール、ピラゾロン、イミダゾール、2-イソイミダゾール、オキサゾール、イソオキサゾール、チアゾール、イミダゾール、イミダゾリジン、オキサゾリン、オキサゾリジン、1,2-ピラン、チアジン、ピリジン、ピリダジン、ピリミジン、ピラジン、オルトキサジン(orthoxazine)、オキサジン、ピペリジン、ピペラジン、トリアジン、デオキサン(Dioxane)、モルフォリン、を含む、3-7員環式構造の何れかであり、
前記ヘテロ環式構造の側鎖は、ハロゲン、-R、-O-R(Rはメチル基を含む炭化水素基から選択された一つの官能基である。)、又は、水素であり、
(iii) (c,d)、及び、(f,e)は、それぞれ、
ベンゼン、又は、ナフタレン、及び、アントラセンを含む縮合環式構造の一つの一部を形成して、前記(I)化合物と前記縮当環式構造との縮合体を形成させるものであり、
a、b、g、hは、それぞれ、
水素であるか、下記(A)~(G)の何れかであり、
前記縮合環式構造の側鎖は、ハロゲン、R-O-:(Rはメチル基を含む炭化水素基から選択された一つの官能基である。)、又は、水素であり、
(iv) a,hは下記化合物を含む環状炭化水素構造の一部を形成して、前記(I)化合物と前記環状炭化水素構造の縮合体を形成するものであり、
又は
b~g、及び、前記環状炭化水素構造の側鎖は、それぞれ、水素であるか、又は、下記(A)~(G)の何れかである。
(B)-CO(OCH2CH2)2OCH3
(C)
(D)
(R2はアデニン、グアニン、チミン、シトシン、ないし、ウラシルからなる核酸の一つ又は複数が結合されたものである。)、
(E)-NHCOH、又は、-NR1R2(R1、R2は、水素、同一又は異なる、炭素数1から6までの飽和構造、又は、不飽和構造(アルケン、又は、アルキン)からなる鎖状又は環状炭化水素)
(F)-NHR3-、-NHCOR3、-CO2-R3、-S-S-R3、又は、-R3(R3は、水素、又は、水酸基等の脱離基が脱離して縮合した置換化合物であり、当該置換化合物は、酵素、抗体、抗原、ペプチド、アミノ酸、オリゴヌクレオチド、タンパク質、核酸、及び、医薬分子の少なくとも一つからなる機能性分子である。)
(G)塩素、臭素、弗素などのハロゲン原子
X、Y:6員環構造
(a,h):ベンゼンの一部を構成
(c,d),(e,f):ベンゼンを構成
(b,g):H
M:Fe
グリシン・メチル・エステル一塩酸塩(glycine methyl ester monohydrochloride)(10.0g、0.079mol)を含むギ酸エチル(ethyl formate)溶液(60ml)にp-TsOH(10mg)を加えた。そして、その溶液を加熱して沸騰させた。沸騰中にトリエチルアミン(triethylamine)を数滴滴下し、その混合液を24時間還流した。その後、その溶液を室温まで冷却した。白いトリエチルアミン塩酸塩をろ過した。ろ過物を20mlまで濃縮した。得られた溶液をマイナス摂氏5度まで冷却し、ろ過を行った。ろ過物である、赤茶色の濃縮溶液(化合物1)を得た。
化合物1に、CH2Cl2(20ml)を溶かした。その後に、エチレンジアミン(ethane-1,2-diamine)(1.2g)、そして、酢酸(HOAc)(20μl)を加えた。反応させた混合溶液を6時間還流させた。そして、反応混合溶液を室温まで冷却し、4gの黄色い油状の濃縮物(化合物2)を得た。得られた化合物2の純度を、シリカゲルを用いたフラッシュコラムクロマトグラフィーによって向上させた。
メタノール(50ml)の中に化合物2、トリエチルアミン(triethylamine)を入れ、メタノール(10ml)の中に、金属塩化物(鉄サレン錯体化合物の合成の際は、FeCl3(4H2O)である)溶液を窒素雰囲気下で混合した。室温窒素雰囲気で1時間混合したところ茶色の化合物が得られた。その後、これを真空中で乾燥した。得られた化合物をジクロロメタン(400ml)で希釈し、塩性溶液で2回洗浄し、Na2SO4で乾燥させ、真空中で乾燥させて化合物0(金属サレン錯体化合物(II))を得た。
前記(V)~(XI)の化合物は、WO 2010/058280の明細書第43~47頁に記載の方法によって合成する。側鎖である臭素、又は、メトキシル基の主骨格への付加は、サレンに金属錯体の結合を形成する際に、ベンゼン環のOH基とはパラの位置でベンゼン環に結合している保護基(NHBoc)を臭素、又は、メトキシル基で置換する。(c,d),(e,f)がアントラセンを構成する(VIII)及び(IX)の化合物では、出発物質として、パラニトロフェノールに代えて、下記化合物を使用する。
金属サレン錯体(II)~(XI)のそれぞれの水溶液をポンプでガラス管を循環させながら永久磁石でトラップされるか否か検討する。金属サレン錯体の水溶液の循環速度は100mm/s、ガラス管の直径は1.3mm、ガラス管の表面と永久磁石の距離は1.35mm、化合物の濃度は10mg/mlである。磁石は市販されている断面円形状の棒磁石(直径20mm、長さ150mm、信越化学の型番N50、最大磁束密度0.8T)を用いる。各金属錯体は磁石にラップする領域でトラップされたことを確認する。
ラットL6細胞が30%のコンフルエントの状態の時に、既述の方法によって得られた、金属(鉄)サレン錯体(II)~(XI)のそれぞれについて、金属サレン錯体の粉末(10mg)を磁石に引き寄せられるのが目視できる程度の量を培地(PBS)に散布して48時間後に培地の状態を写真撮影する。図1はラットL6細胞の培地がある角型フラスコに棒磁石を接触させた状態を示した模式図である。次いで、48時間後角型フラスコ底面の一端から他端までを撮影し、細胞数を算出した結果を図2に示す。図2において磁石から近位とは、角型フラスコ底面における磁石端面の投影面積内を示し、磁石から遠位とは、角型フラスコ底面において磁石端面と反対側にある領域を示す。
Claims (13)
- 下記(I)式で示される、自己磁性を有する新規な金属サレン錯体化合物。
(I)
X及びYは、NとMとの間の配位結合を含む5員環構造、又は、その6員環構造であり、
Mは、Fe、Cr、Mn、Co、Ni、Mo、Ru、Rh、Pd、W、Re、Os、Ir、Pt、Nd、Sm、Eu、又は、Gdからなる2価の金属元素であり、
X及びYが共に前記5員環構造の場合、b,gは無く、
さらに、前記(I)は、下記(i)~(iv)のいずれかである。
(i) a~hのそれぞれは、
水素であるか、又は、
下記(A)~(G)、及び、-C(=O)m(mは水素であるか、又は、下記(A)~(G)の何れかである。)の何れかであり、
(ii) (c,d)、及び、(f,e)は、それぞれ、ヘテロ環式構造の一部を形成して、前記(I)化合物と前記ヘテロ環式構造との縮合体を構成させるものであり、
a、b、g、hは、それぞれ、
水素であるか、又は、
下記(A)~(G)、及び、-C(=O)m(mは水素であるか、又は、下記(A)~(G)の何れかである。)の何れかであり、
前記ヘテロ環式構造は、フラン、チオフェン、ピロール、ピロリジン、ピラゾール、ピラゾロン、イミダゾール、2-イソイミダゾール、オキサゾール、イソオキサゾール、チアゾール、イミダゾール、イミダゾリジン、オキサゾリン、オキサゾリジン、1,2-ピラン、チアジン、ピリジン、ピリダジン、ピリミジン、ピラジン、オルトキサジン(orthoxazine)、オキサジン、ピペリジン、ピペラジン、トリアジン、デオキサン(Dioxane)、モルフォリン、を含む、3-7員環式構造の何れかであり、
前記ヘテロ環式構造の側鎖は、ハロゲン、-R、-O-R(Rはメチル基を含む炭化水素基から選択された一つの官能基である。)、又は、水素であり、
(iii) (c,d)、及び、(f,e)は、それぞれ、
ベンゼン、又は、ナフタレン、及び、アントラセンを含む縮合環式構造の一つの一部を形成して、前記(I)化合物と前記縮当環式構造との縮合体を形成させるものであり、
a、b、g、hは、それぞれ、
水素であるか、下記(A)~(G)の何れかであり、
前記縮合環式構造の側鎖は、ハロゲン、R-O-:(Rはメチル基を含む炭化水素基から選択された一つの官能基である。)、又は、水素であり、
(iv) a,hは下記化合物を含む環状炭化水素構造の一部を形成して、前記(I)化合物と前記環状炭化水素構造の縮合体を形成するものであり、
又は
b~g、及び、前記環状炭化水素構造の側鎖は、それぞれ、水素であるか、又は、下記(A)~(G)の何れかである。
(A)-CO2R,-C(=O)R(Rは、水素、又は、炭素数1から6までの飽和構造、又は、不飽和構造(アルケン、又は、アルキン)からなる鎖状又は環状炭化水素である。)
(B)-CO(OCH2CH2)2OCH3
(C)
(D)
(R2はアデニン、グアニン、チミン、シトシン、ないし、ウラシルからなる核酸の一つ又は複数が結合されたものである。)、
(E)-NHCOH、又は、-NR1R2(R1、R2は、水素、同一又は異なる、炭素数1から6までの飽和構造、又は、不飽和構造(アルケン、又は、アルキン)からなる鎖状又は環状炭化水素)
(F)-NHR3-、-NHCOR3、-CO2-R3、-S-S-R3、又は、-R3(R3は、水素、又は、水酸基等の脱離基が脱離して縮合した置換化合物であり、当該置換化合物は、酵素、抗体、抗原、ペプチド、アミノ酸、オリゴヌクレオチド、タンパク質、核酸、及び、医薬分子の少なくとも一つからなる機能性分子である。)
(G)塩素、臭素、弗素などのハロゲン原子 - 前記(I)式の金属サレン錯体化合物の側鎖の電荷移動が0.5電子(e)未満である、請求項1乃至8の何れか1項に記載の金属サレン錯体化合物。
- 請求項1乃至9の何れかに1記載の前記(I)式で示される金属サレン錯体化合物を含み、体内に投与されたのち外部磁場を照射することにより、目的組織に誘導される磁性医薬。
- 請求項10記載の前記磁性医薬を有効成分とする抗腫瘍薬。
- 請求項10又は11記載の薬を体内に投与した後、外部磁場を照射することにより患部に誘導する方法。
- 体内に適用された請求項10又は11記載の薬に磁場を供給する手段と、前記磁場を患部に移動する手段と、を備える、磁性医薬の誘導システム。
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WO2018130184A1 (zh) | 2017-01-13 | 2018-07-19 | 江苏恒瑞医药股份有限公司 | 1,2,4-三嗪-3-胺类衍生物、其制备方法及其在医药上的应用 |
US11014904B2 (en) | 2017-01-13 | 2021-05-25 | Jiangsu Hengrui Medicine Co., Ltd. | 1,2,4-triazine-3-amine derivative, preparation method therefor, and use thereof in medicine |
WO2020053365A2 (en) | 2018-09-13 | 2020-03-19 | Syngenta Participations Ag | Pesticidally active azole-amide compounds |
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US20140323566A1 (en) | 2014-10-30 |
EP2738157A4 (en) | 2015-10-14 |
EP2738157B1 (en) | 2019-07-10 |
RU2649391C2 (ru) | 2018-04-03 |
US9592219B2 (en) | 2017-03-14 |
CN103889947A (zh) | 2014-06-25 |
JP2013028543A (ja) | 2013-02-07 |
EP2738157A1 (en) | 2014-06-04 |
RU2014106993A (ru) | 2015-09-10 |
JP6017766B2 (ja) | 2016-11-02 |
SG2014005995A (en) | 2014-04-28 |
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