WO2010026711A1 - 白金錯体及びそれを含む医薬組成物 - Google Patents
白金錯体及びそれを含む医薬組成物 Download PDFInfo
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- WO2010026711A1 WO2010026711A1 PCT/JP2009/004077 JP2009004077W WO2010026711A1 WO 2010026711 A1 WO2010026711 A1 WO 2010026711A1 JP 2009004077 W JP2009004077 W JP 2009004077W WO 2010026711 A1 WO2010026711 A1 WO 2010026711A1
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- cis
- spiro
- formula
- nonane
- hydrocarbon residue
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- C07C211/33—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings
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- C07F15/0093—Platinum compounds without a metal-carbon linkage
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2602/00—Systems containing two condensed rings
- C07C2602/50—Spiro compounds
Definitions
- the present invention relates to a novel platinum complex and a pharmaceutical composition comprising the same as an active ingredient, particularly a malignant tumor therapeutic agent.
- Non-Patent Document 1 to Non-Patent Document 3).
- cisplatin has a problem that it has many side effects such as nephrotoxicity, hematological toxicity, gastrointestinal toxicity and neurotoxicity. Therefore, carboplatin was developed to reduce nephrotoxicity of cisplatin and increase water solubility. However, although carboplatin is expensive, its antitumor effect is not always satisfactory.
- An object of the present invention is a platinum (II) complex having spiro [4,4] nonane-1,6-diamine as a ligand, which has a stronger antitumor activity and is effective at a smaller dose. Therefore, it is to provide a novel complex with relatively reduced side effects.
- a platinum oxalate complex characterized by having cis, cis-spiro [4,4] nonane-1,6-diamine represented by the following formula (G) as a ligand, It is an object of the present invention to provide a novel complex having characteristics of having strong antitumor activity against non-solid tumors such as seed cells and having relatively reduced side effects.
- cis, cis-spiro [4,4] nonane-1,6-diamine is an optically active substance having two (S, S, S) and (R, R, R) steric structures. Since it exists as a racemate, the effect of platinum complexes of these optically active diamines on malignant tumors is clarified, and optically active (S, S, S) and (R, R, R) -cis, cis-spiro [ [4,4] Platinum (II) complex with nonane-1,6-diamine as a ligand, which has stronger antitumor activity and is effective at lower doses, so it has relatively no side effects. It is to provide a new and reduced complex.
- the therapeutic agent for malignant tumors of the present invention is a novel platinum having a ligand of spiro [4,4] nonane-1,6-diamine represented by the following general formula (A) ( II) A complex and the complex as an active ingredient.
- X and Y are the same or different and each represents a halogen atom, or X and Y together represent a divalent residue represented by the formula (Z).
- R represents a single bond or a linear or branched divalent hydrocarbon residue having 1 to 6 carbon atoms, and the hydrocarbon residue may have an unsaturated bond.
- the hydrocarbon residue may form a spiro structure.
- the present invention is a platinum complex having (S, S, S) -cis, cis-spiro [4,4] nonane-1,6-diamine represented by the following general formula (B) as a ligand.
- X and Y are the same or different and each represents a halogen atom, or X and Y together represent a divalent residue represented by the formula (Z).
- R represents a single bond or a linear or branched divalent hydrocarbon residue having 1 to 6 carbon atoms, and the hydrocarbon residue may have an unsaturated bond.
- the hydrocarbon residue may form a spiro structure.
- the present invention is a platinum complex having (R, R, R) -cis, cis-spiro [4,4] nonane-1,6-diamine represented by the following general formula (C) as a ligand.
- X and Y are the same or different and each represents a halogen atom, or X and Y together represent a divalent residue represented by the formula (Z).
- R represents a single bond or a linear or branched divalent hydrocarbon residue having 1 to 6 carbon atoms, and the hydrocarbon residue may have an unsaturated bond.
- the hydrocarbon residue may form a spiro structure.
- the present invention is a platinum dicarboxylic acid complex having spiro [4,4] nonane-1,6-diamine as a ligand represented by the following general formula (D).
- R represents a single bond or a linear or branched divalent hydrocarbon residue having 1 to 6 carbon atoms, and the hydrocarbon residue has an unsaturated bond.
- the hydrocarbon residue may form a spiro structure.
- the present invention is characterized in that (S, S, S) -cis, cis-spiro [4,4] nonane-1,6-diamine represented by the following general formula (E) is used as a ligand. It is a platinum dicarboxylic acid complex.
- R represents a single bond or a linear or branched divalent hydrocarbon residue having 1 to 6 carbon atoms, and the hydrocarbon residue may have an unsaturated bond.
- the hydrocarbon residue may form a spiro structure.
- the present invention is characterized in that (R, R, R) -cis, cis-spiro [4,4] nonane-1,6-diamine represented by the following general formula (F) is used as a ligand. It is a platinum dicarboxylic acid complex.
- R represents a single bond or a linear or branched divalent hydrocarbon residue having 1 to 6 carbon atoms, and the hydrocarbon residue may have an unsaturated bond.
- the hydrocarbon residue may form a spiro structure.
- the present invention is a platinum oxalate complex characterized by having cis, cis-spiro [4,4] nonane-1,6-diamine represented by the following formula (G) as a ligand.
- the present invention relates to platinum shu which is characterized by having (S, S, S) -cis, cis-spiro [4,4] nonane-1,6-diamine represented by the following formula (H) as a ligand. It is an acid salt complex.
- the present invention relates to platinum shu which is characterized by having (R, R, R)-cis, cis-spiro [4,4] nonane-1,6-diamine represented by the following formula (J) as a ligand. It is an acid salt complex.
- the present invention is a platinum cyclobutane dicarboxylate complex having cis, cis-spiro [4,4] nonane-1,6-diamine represented by the following formula (K) as a ligand.
- the present invention is a platinum cyclobutane dicarboxylate complex having cis, trans-spiro [4,4] nonane-1,6-diamine represented by the following formula (L) as a ligand.
- the present invention is a pharmaceutical composition containing the platinum complex of each of the above formulas as an active ingredient.
- the present invention is a malignant tumor therapeutic agent containing a platinum complex of each of the above formulas as an active ingredient.
- the present invention is the above pharmaceutical composition which is a therapeutic agent for malignant tumors.
- the present invention is the above pharmaceutical composition which is a therapeutic agent for non-solid malignant tumors.
- malignant tumors have strong antitumor activity against non-solid tumors such as human lymphoid cells, and the dosage is smaller than conventional platinum complex malignant tumor therapeutic agents. Is effective, and therefore, side effects are relatively reduced.
- Embodiments of the platinum complex of the present invention and a malignant tumor therapeutic agent containing the same will be described below.
- spiro [4,4] nonane-1,6-diamine has stereochemically three stereoisomers: cis, cis-isomer, cis, trans-isomer, trans and trans-isomer.
- the trans and trans isomers cannot form a complex with platinum sterically within the molecule, and are preferably cis, cis isomer, cis and trans isomer.
- X and Y represent a halogen atom
- X and Y are the same halogen atom, and it is particularly preferable that both X and Y are chlorine atoms.
- the compound represented by the formula (Z) in which X and Y are jointly derived is derived from a dicarboxylic acid that forms a complex with platinum.
- the dicarboxylic acid is oxalic acid
- R is a hydrocarbon residue having 1 to 6 carbon atoms
- the dicarboxylic acid is, for example, a straight chain having R of 1, 2, 3 Are malonic acid, succinic acid and glutaric acid, respectively.
- R is a dicarboxylic acid having 2 carbon atoms is maleic acid.
- the hydrocarbon residue of R When the hydrocarbon residue of R has a spiro structure, it is a cyclic hydrocarbon having 3 to 6 carbon atoms, and has two bonds on the same carbon atom.
- the acid include cyclopropane-1,1-dicarboxylic acid and cyclobutane-1,1-dicarboxylic acid.
- Preferred as the dicarboxylic acid that forms a salt with platinum are oxalates in which R is a single bond and cyclobutane dicarboxylic acid in which R has 4 carbon atoms.
- the compound containing the stereoisomer of the present invention is synthesized by the method represented by the following reaction formulas (i) and (ii).
- the compound of formula (M) may itself be the target compound (A) of the present invention.
- the compound which is a halogen atom other than iodine in the formula (M) is produced in the same manner as (M). Alternatively, it can also be produced by replacing the iodine atom of the compound (M) with another halogen atom according to a conventional method.
- the spiro [4,4] nonane-1,6-diamine used has three stereoisomers: cis, cis-form, cis, trans-form, trans, and trans-form in terms of stereochemistry.
- the trans and trans isomers cannot form a complex in the molecule in terms of stereochemistry, and thus become two steric isomers of cis, cis isomer, cis and trans isomer.
- Na and K salts are preferable, and equivalent amounts are preferably used.
- the compounds (N) and (O) in the reaction formula (ii) are preferably used in equivalent amounts.
- spiro [4,4] nonane-1,6-diamine represented by the formula (O) can be obtained by known methods (ACC Chan et al. Tetrahedoron. Lett., 2004, 45, 7379), for example, reaction formula It can be synthesized by the method shown in (v). That is, it can be synthesized from spiro [4,4] nonane-1,6-diol (P) in three steps.
- MsCl represents methanesulfonyl chloride (CH 3 SO 2 Cl).
- Compound (O) has three structural isomers, namely, cis, cis-isomer, cis, trans-isomer, trans, trans-isomer, and of these, platinum forms a complex with platinum in the molecule. They are cis, cis-isomer, cis and trans-isomer. These are represented by stereoselective trans, trans-spiro [4,4] nonane-1,6-diol (t, t-P) as shown in reaction formulas (iv) and (v).
- nonane-1,6-diamine (c, c-O) is converted from cis, trans-spiro [4,4] nonane-1,6-diol (t, c-P) to cis, trans- Spiro [4,4] nonane-1,6-diamine (c, t-O) can be synthesized.
- Trans, trans-spiro [4,4] nonane-1,6-diol (t, t-P), trans, cis-spiro [4,4] nonane-1,6-diol (t, c-O) are Known methods (JA Nieman, BA Keay, Synthetic Comm., 1999, 29, 3929), for example spiro [4,4] nonane-1,6-dione (S), are converted into a suitable reducing agent, for example Na [(CH 3 It can be obtained by reduction with a metal hydride such as OCH 2 CH 2 O) 2 AlH 2 ].
- Spiro [4,4] nonane-1,6-dione can be synthesized by a known method, for example, the method of J.A. Nieman, B.A. Keay, Synthetic Comm., 1999, 29, 3929.
- the compound containing the optical isomer of the present invention is synthesized by the method represented by the following reaction formulas (I) and (II).
- Compounds (a), (b), (c) can be prepared by known methods such as J. Med. Chem., 1997, 40, 112-116, It can be easily obtained by applying the method described in J. Inorg. Biochem., 1993, 50, 79-87, J. Inorg. Biochem., 1996, 61, 291-310.
- DMSO is dimethyl sulfoxide.
- the compounds of the formulas (a) and (b) may themselves be the target compounds (B) and (C) of the present invention.
- a compound that is a halogen atom other than iodine in the formulas (a) and (b) is produced in the same manner as in (a) and (b). Alternatively, it can also be produced by substituting the iodine atom of the compounds (a) and (b) with another halogen atom according to a conventional method.
- Na and K salts are preferable, and equivalent amounts are preferably used.
- (R, R, R) -cis, cis-spiro [4 in reaction formula (II) , 4] nonane-16, -diamine (e) is preferably used in an equivalent amount.
- MsCl represents methanesulfonyl chloride (CH 3 SO 2 Cl).
- R, S, R trans-spiro [4,4] nonane-1,6-diol
- f trans-spiro [4,4] nonane-1 , 6-diol
- g is obtained by a known method (ACC Chan et al. Tetrahedoron. Lett., 2004, 45, 7379), that is, spiro [4,4] -nonane-1,6-dione (m) is obtained by a known optical activity.
- (S) -CBS (n) or (R) -CBS (o) can be used as a catalyst for reduction with borane. If (S) -CBS catalyst is used, (R, S, R) -trans, trans-spiro [4,4] nonane-1,6-diol (f) can be used if (R) -CBS catalyst is used (S , R, S) -trans, trans-spiro [4,4] nonane-1,6-diol (g).
- the (S) -CBS catalyst (n) and the (R) -CBS catalyst (o) are prepared by a known method (E. J. Corey, R. K. Bakshi, S. Shibata, J Am. Chem. Soc., 1987, 109, 5551).
- Spiro [4,4] nonane-1,6-dione (m) can be synthesized by a known method, for example, the method of J.A. Nieman, B.A. Keay, Synthetic Comm., 1999, 29, 3929.
- the corresponding platinum complexes can be synthesized by using the optically active diamines (d) and (e) synthesized here in the reaction formulas (I) and (II), respectively.
- This complex may contain water as an aco complex, but an ako form is also included in the present invention.
- a pharmaceutical composition containing an effective amount of the platinum complex of the present invention When administered clinically, it is administered orally or parenterally.
- the dosage forms include tablets, dragees, pills, capsules, powders, troches, solutions, suppositories, injections, and the like, which are produced by blending pharmaceutically acceptable excipients.
- the pharmaceutical composition of the present invention is preferably prepared as a parenteral preparation. The following can be illustrated as an excipient
- Lactose sucrose, glucose, sorbitol, mannitol, potato starch, amylopectin, other various starches, cellulose derivatives (eg, carboxymethylcellulose, hydroxyethylcellulose, etc.), gelatin, calcium stearate, magnesium stearate, polyvinyl alcohol, polyethylene glycol Wax, gum arabic, talc, titanium dioxide, olive oil, peanut oil, sesame oil and other vegetable oils, paraffin oil, neutral fat base, ethanol, propylene glycol, physiological saline, sterile water, glycerin, colorant, seasoning, thick Agents, stabilizers, isotonic agents, buffers and the like, and other pharmaceutically acceptable excipients.
- cellulose derivatives eg, carboxymethylcellulose, hydroxyethylcellulose, etc.
- gelatin calcium stearate, magnesium stearate
- polyvinyl alcohol polyethylene glycol Wax, gum arabic, talc, titanium dioxide, olive oil, peanut
- the therapeutic agent of the present invention can contain 0.001 to 85% by weight, preferably 0.005 to 60% by weight of the platinum complex of the present invention.
- the dose of the therapeutic agent of the present invention depends mainly on the symptoms, but is 0.005 to 200 mg, preferably 0.01 to 50 mg per adult body weight per day.
- Example 1 In a 300 ml round bottom flask, put 7.47 g (18 mmol) of potassium tetrachloroplatinate (II) (K 2 PtCl 4 ) in 145 ml of water, and add a solution of 29.9 g of potassium iodide (KI) in 40 ml of water. In addition, it is stirred at room temperature for 1 hour. Then, 2.81 g (18 mmol) of cis, cis-spiro [4,4] nonane-1,6-diamine is added and stirred at room temperature for 22 hours.
- II potassium tetrachloroplatinate
- KI potassium iodide
- Example 2 To a 50 ml round bottom flask, put 6.26 g (15.1 mmol) of potassium tetrachloroplatinate (II) (K 2 PtCl 4 ) in 100 ml of water, then add 3.34 g (42.8 mmol) of dimethyl sulfoxide (DMSO) for 2 days. Leave still. The precipitated crystals are filtered, then washed with cold water, further washed with acetone and dried. 5.44 g of DMSO complex (DMSO) 2 PtCl 2 was obtained. Yield 84.3%.
- II potassium tetrachloroplatinate
- DMSO dimethyl sulfoxide
- the DMSO complex (DMSO) 2 PtCl 2 2.60 g (6.1 mmol) obtained here was put in a 200 ml round bottom flask, then 110 ml of water was added, and further 1.86 g (6.0 mmol) of silver sulfate (Ag 2 SO 4 ) And stirred at room temperature for 19 hours in the dark. Filter using Celite as filter aid. An aqueous solution of 554 mg of oxalic acid dissolved in 12.6 ml of 1N sodium hydroxide solution is added to the filtrate and stirred at room temperature for 4 hours. Filter and wash the filtrate with cold water, then with acetone and dry. 2.12 g of (DMSO) 2 Pt (oxalate), a oxalate platinum complex of DMSO, was obtained. Yield 79.1%.
- Example 3 In a 300 ml round bottom flask, put 5.81 g (14 mmol) of potassium tetrachloroplatinate (II) (K 2 PtCl 4 ) in water (112 ml). In addition, it is stirred at room temperature for 1 hour. Next, 2.19 g (14 mmol) of (S, S, S) -cis, cis-spiro [4,4] nonane-1,6-diamine is added and stirred at room temperature for 22 hours. Filter and wash the filtrate with water, then ethanol, then diethyl ether and dry. 7.17 g of Pt (II) [(S, S, S) -cis, cis-spiro [4,4] nonane-1,6-diamine] diiodide was obtained. Yield 85%.
- II potassium tetrachloroplatinate
- Example 4 In a 300 ml round bottom flask, place 5.84 g (14 mmol) of potassium tetrachloroplatinate (II) (K 2 PtCl 4 ) in 114 ml of water, and add a solution of 23.41 g of potassium iodide (KI) in 31 ml of water. In addition, it is stirred at room temperature for 1 hour. Next, 2.20 g (14 mmol) of (R, R, R) -cis and cis-spiro [4,4] nonane-1,6-diamine are added and stirred at room temperature for 22 hours. Filter and wash the filtrate with water, then ethanol, then diethyl ether and dry. 7.34 g of Pt (II) [(R, R, R) -cis, cis-spiro [4,4] nonane-1,6-diamine] diiodide was obtained. Yield 87%.
- II potassium tet
- Example 5 A 200 ml round bottom flask is charged with 3.77 g (8.93 mmol) of DMSO platinum complex (DMSO) 2 PtCl 2 obtained in Example 2 and then 100 ml of water is added. Further, 1.22 g of cyclobutanedicarboxylic acid (CBDCA), 34 ml of 0.5N sodium hydroxide aqueous solution, and then 2.89 g (17 mmol) of silver nitrate (AgNO 3 ) are added and stirred in the dark at room temperature for 46 hours. Filter and wash the filtrate with cold water followed by acetone and dry. 2.55 g of CBDCA platinum complex of DMSO (DMSO) 2 Pt (CBDCA) was obtained. Yield 57.9%.
- CBDCA cyclobutanedicarboxylic acid
- Example 6 997 mg (6.38 mmol) of cis, trans-spiro [4,4] nonane-1,6-diamine is dissolved in 100 ml of water and filtered. The filtrate was added to a 200 ml round bottom flask, and then 3.15 g (6.38 mmol) of the DMSO platinum complex (DMSO) 2 Pt (CBDCA) obtained in Example 5 was added and stirred at room temperature for 26 hours, followed by 90 ° C. And stir for 2.5 hours. Precipitation of a white solid is confirmed in about 1 hour. Cool to 4 ° C and filter. Wash with cold water and then with acetone and dry. 1.12 g of Pt (II) (cis, trans-spiro [4,4] nonane-1,6-diamine) cyclobutanedicarboxylate complex (compound 5) was obtained. Yield 36%.
- DMSO DMSO platinum complex
- CBDCA DMSO 2 Pt
- Example 7 The test solution was prepared by dissolving (Compound 1) in dimethyl sulfoxide (DMSO) at a concentration of 8 mg / ml.
- the test was performed using U937 (human lymphoma cells) as cancer cells and HEK293 (human embryonic kidney cells) as normal cells.
- MTS method Proliferation of cells after drug addition was measured by MTS method (Promega cell proliferation test kit) 1 to 3 days after drug addition.
- Inhibition rate (%) (1-MTS value in the drug-added group / MTS value in the drug-free group) ⁇ 100 Since the value obtained by the above formula represents the inhibition rate of cell proliferation, the higher the numerical value, the higher the drug effect. Those with a value of 50 (%) or more were regarded as having a drug effect. The results are shown below.
- the X axis represents the number of days after the addition of the drug
- the Y axis represents the cell growth inhibition rate (%) obtained from the formula. Furthermore, each concentration (4, 8, 16 ⁇ g / ml) is shown on the same graph.
- S drug test solution is platinum (II) [(S, S, S) -cis, cis-spiro [4,4] nonane-1,6-diamine] oxalate complex (compound 2: hereinafter referred to as S drug)
- the R drug test solution is platinum (II) [(R, R, R) -cis, cis-spiro [4,4] nonane-1,6-diamine] oxalate complex (compound 3: hereinafter referred to as R drug)
- DMSO dimethyl sulfoxide
- the test consists of A549 (human lung cancer cells), LU65A (human lung cancer cells), RERF-LC-MA (human lung cancer cells), LU99 (human lung cancer cells), H460 (human lung cancer cells), HCT116 (human) Colon cancer cells), HT-29 (human colon cancer cells), MKN-45 (human gastric cancer cells), MKN-1 (human gastric cancer cells), U937 (human lymphoma cells), KP-1N (human pancreatic cancer) Cells), H2452 (human mesothelioma cells).
- the cells were suspended in each culture medium supplemented with 10% serum and dispensed into 96-well plates. Thereafter, the cells were cultured overnight at 37 ° C. in 5% CO 2 . On the next day, the S drug test solution and the R drug test solution were prepared in various concentrations (5, 10, 20 ⁇ g / ml) in a culture medium, and dispensed to a plate on which cells had been seeded in advance. The cells were further cultured for 3 days at 37 ° C. in 5% CO 2 .
- the proliferation of cells after drug addition was measured by MTS method (Promega cell proliferation test kit) 1 to 3 days after drug addition.
- Inhibition rate (%) (1-MTS value in the drug-added group / MTS value in the drug-free group) ⁇ 100 Since the value obtained by the above formula represents the inhibition rate of cell proliferation, the higher the numerical value, the higher the drug effect. Those with a value of 50 (%) or more were regarded as having a drug effect. The results are shown below.
- the X-axis represents the number of days after drug addition
- the Y-axis represents the cell growth inhibition rate (%) obtained from the formula. Furthermore, each concentration (5, 10, 20 ⁇ g / ml) is shown on the same graph.
- the cell growth inhibition rate was 50% or more in all cells except H2452 cells (human mesothelioma cells).
- H2452 cells human mesothelioma cells.
- R drug the cell growth inhibition rate in all cells was 50% or more.
- the S drug and the R drug have a medicinal effect on many tumor cells, and the effect of the R drug is higher than that of the R drug.
- S drug and R drug showed higher efficacy than oxaliplatin, which is a conventional antitumor therapeutic agent.
- the platinum complex of the present invention has strong antitumor activity and is useful as a malignant tumor therapeutic agent.
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Abstract
Description
J. Inorg. Biochem., 1993, 50, 79-87、J. Inorg. Biochem., 1996, 61, 291-310に記載されている手法を応用して容易に得られる。DMSOはジメチルスルホキシドである。
実施例1
300mlの丸底フラスコにテトラクロロ白金(II)酸カリウム(K2PtCl4)7.47g(18mmol)を入れ水145mlに溶かし、これにヨウ化カリ(KI)29.9gを水40mlに溶かした溶液を加えて室温で1時間攪拌する。次いでシス、シス-スピロ[4,4]ノナン-1,6-ジアミン2.81g(18mmol)を加えて22時間室温で攪拌する。ろ過し、ろ過物を水、次いでエタノール、さらにジエチルエーテルで洗い、乾燥する。Pt(II)(シス、シス-スピロ[4,4]ノナン-1,6-ジアミン)ジヨウ素化物が8.47g得られた。収率は87%。
計算値(%) C:30.21 H:4.15 N:6.41 Pt:44.60
実測値(%) C:29.11 H:4.22 N:6.09 Pt:44.57
IR(KBr) cm-1:3203, 3115, 1693, 1672, 1367
1H-NMR(500MHz, DMSO-d6) δ:1.35 (t, J = 9.5Hz, 2H), 1.45-1.53 (m, 2H), 1.55-1.61 (m, 2H), 1.65-1.69 (m, 4H), 1.82-1.89 (m, 2H), 2.91-2.95 (q, J = 5.8Hz, 2H), 5.04 (t, J = 11.6Hz, 2H), 5.87 (d, J = 10.5Hz, 2H)
13C-NMR (125MHz, DMSO-d6) δ:20.6, 32.7, 35.2, 56.3, 60.4, 166.2
MS (FAB):m/z 438 (M+H+)
以上の結果から本化合物は(化合物1)で示される化学構造を持っていることが確かめられた。
50ml丸底フラスコにテトラクロロ白金(II)酸カリウム(K2PtCl4)6.26g(15.1mmol)を入れて水100mlに溶かし、次いでジメチルスルホキシド(DMSO)3.34g(42.8mmol)を加えて2日間静置する。析出してきた結晶をろ過し、次いで冷水で洗い、さらにアセトンで洗い乾燥する。DMSO錯体である(DMSO)2 PtCl2が5.44g得られた。収率は84.3%。
実施例3
300mlの丸底フラスコにテトラクロロ白金(II)酸カリウム(K2PtCl4)5.81g(14mmol)を入れ水112mlに溶かし、これにヨウ化カリ(KI)23.26gを水31mlに溶かした溶液を加えて室温で1時間攪拌する。次いで(S,S,S)-シス、シス-スピロ[4,4]ノナン-1,6-ジアミン2.19g(14mmol)を加えて22時間室温で攪拌する。ろ過し、ろ過物を水、次いでエタノール、さらにジエチルエーテルで洗い、乾燥する。Pt(II)[(S,S,S)-シス、シス-スピロ[4,4]ノナン-1,6-ジアミン]ジヨウ素化物が7.17g得られた。収率は85%。
IR測定の結果、実施例1の化合物1と一致し、化合物2と確認できた。
300mlの丸底フラスコにテトラクロロ白金(II)酸カリウム(K2PtCl4)5.84g(14mmol)を入れ水114mlに溶かし、これにヨウ化カリ(KI)23.41gを水31mlに溶かした溶液を加えて室温で1時間攪拌する。次いで(R,R,R)-シス、シス-スピロ[4,4]ノナン-1,6-ジアミン2.20g(14mmol)を加えて22時間室温で攪拌する。ろ過し、ろ過物を水、次いでエタノール、さらにジエチルエーテルで洗い、乾燥する。Pt(II)[(R,R,R)-シス、シス-スピロ[4,4]ノナン-1,6-ジアミン]ジヨウ素化物が7.34g得られた。収率は87%。
IR測定の結果、比較例1の化合物1と一致し、化合物3と確認できた。
200ml丸底フラスコに実施例2で得られたDMSO白金錯体(DMSO)2PtCl2 3.77g(8.93mmol)を入れ、次いで水100mlを加える。さらにシクロブタンジカルボン酸(CBDCA)1.22g、0.5N苛性ソーダ水溶液34ml、次いで硝酸銀(AgNO3)2.89g(17mmol)を加えて暗所で室温46時間攪拌する。ろ過し、ろ過物を冷水で洗い、次いでアセトンで洗い乾燥する。DMSOのCBDCA白金錯体(DMSO)2Pt (CBDCA) 2.55gが得られた。収率は57.9%。
計算値(%) C:35.36 H:5.14 N:5.50 Pt:38.29
実測値(%) C:34.63 H:5.24 N:5.30 Pt:37.99
IR(KBr) cm-1:3207, 3098, 1661, 1672, 1373
1H-NMR(500MHz, DMF-d7) δ:1.49-1.53(m, 2H), 1.58-1.65(m, 2H), 1.70(quint, J = 7.9Hz, 2H), 1.75-1.80(m, 2H), 1.82-1.89(m, 2H), 1.91-1.97(m, 2H), 2.00-2.07(m, 2H), 3.17-3.20(m, 2H), 5.09(t, J = 11.3Hz, 2H), 5.64(d, J = 11.0Hz, 2H)
13C-NMR(125MHz, DMF-d7) δ:15.8, 21.2, 31.3, 33.6, 6.3, 56.7, 57.4, 61.7, 178.6
MS (FAB):m/z 492(M+H+)
以上の結果から本化合物は(化合物4)で示される化学構造を持っていることが確かめられた。
シス、トランス-スピロ[4,4]ノナン-1,6-ジアミン 997mg(6.38mmol)を水100mlに溶かし、ろ過する。200mlの丸底フラスコにこのろ液を加え、次いで実施例5で得られたDMSOの白金錯体(DMSO)2Pt (CBDCA) 3.15g(6.38mmol)を加えて室温で26時間攪拌後、90℃で2.5時間加熱攪拌する。1時間程度で白色固体の析出が確認される。4℃に冷却し、ろ過する。冷水で洗い、次いでアセトンで洗い乾燥する。Pt(II)(シス、トランス-スピロ[4,4]ノナン-1,6-ジアミン)シクロブタンジカルボン酸塩錯体(化合物5)が1.12g得られた。収率は36%。
計算値(%) C:36.66 H:4.92 N:5.70 Pt:39.70
実測値(%) C:36.56 H:4.88 N:5.57 Pt:39.91
IR(KBR) cm-1:3209, 3115, 1651, 1614, 1373
1H-NMR(500MHz, DMSO -d6) δ:1.13-1.17(m, 1H), 1.24-1.29(m, 1H), 1.33-1.52(m, 2H), 1.59-1.72(m, 2H), 1.79-1.82(m, 2H), 1.87-1.94(m,1H), 1.98-2.09(m, 3H), 2.53-2.60(m, 2H), 2.68(q, J = 9.2Hz, 1H), 2.78-2.80(m, 1H), 2.87-2.92(m, 1H), 4.72(t, J = 11.8Hz, 1H), 5.23(d, J = 11.7Hz, 1H), 5.36(d, J = 8.5Hz, 1H), 5.71(d, J = 8.8Hz, 1H)
13C-NMR(125MHz, DMSO -d6) δ:15.0, 18.5, 22.7, 27.8, 29.0, 29.1, 31.5, 34.0, 37.0, 55.3, 55.58, 55.65, 59.9, 177.2, 177.5
MS (FAB):m/z 492(M+H+)
以上の結果から本化合物は(化合物5)で示される化学構造を持っていることが確かめられた。
試験溶液は、(化合物1)をジメチルスルホキシド(DMSO)に8mg/mlの濃度で溶解することにより調製した。
阻害率(%)=(1-薬剤添加群のMTS値/薬剤未添加群のMTS値)×100
上記式で求められた値は、細胞増殖の阻害率を表すため、数値が高いほど薬剤効果が高いことになる。その値が50(%)以上のものを薬剤効果があるものとした。結果を以下に示す。
実施例8
S薬剤試験溶液は白金(II)[(S,S,S)-シス、シス-スピロ[4,4]ノナン-1,6-ジアミン]シュウ酸塩錯体(化合物2:以下S薬剤と記す)を、R薬剤試験溶液は白金(II)[(R,R,R)-シス、シス-スピロ[4,4]ノナン-1,6-ジアミン]シュウ酸塩錯体(化合物3:以下R薬剤と記す)を、それぞれジメチルスルホキシド(DMSO)に10mg/mlの濃度で溶解することにより調製した。
阻害率(%)=(1-薬剤添加群のMTS値/薬剤未添加群のMTS値)×100
上記式で求められた値は、細胞増殖の阻害率を表すため、数値が高いほど薬剤効果が高いことになる。その値が50(%)以上のものを薬剤効果があるものとした。結果を以下に示す。
Claims (15)
- 請求項1ないし11のいずれか一項に記載の白金錯体を有効成分として含有する医薬組成物。
- 特許項1ないし11のいずれか一項に記載の白金錯体を有効成分として含有する悪性腫瘍治療剤。
- 悪性腫瘍治療剤である請求項13に記載の医薬組成物。
- 非固形悪性腫瘍治療剤である請求項13または14記載の医薬組成物。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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EP09811241A EP2325163A4 (en) | 2008-09-03 | 2009-08-25 | PLATINUM COMPLEX AND MEDICAL CONNECTION THEREWITH |
US13/060,906 US8501977B2 (en) | 2008-09-03 | 2009-08-25 | Platinum complex and pharmaceutical composition containing the same |
CN2009801342997A CN102143936B (zh) | 2008-09-03 | 2009-08-25 | 铂配合物以及含有该铂配合物的药物组合物 |
CA2734125A CA2734125A1 (en) | 2008-09-03 | 2009-08-25 | Platinum complex and medical compound containing same |
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JP2008-225698 | 2008-09-03 | ||
JP2008225698 | 2008-09-03 | ||
JP2009-155399 | 2009-06-30 | ||
JP2009155399A JP4664424B2 (ja) | 2008-09-03 | 2009-06-30 | 白金錯体及びそれを含む医薬組成物 |
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US (1) | US8501977B2 (ja) |
EP (1) | EP2325163A4 (ja) |
JP (1) | JP4664424B2 (ja) |
KR (1) | KR20110055594A (ja) |
CN (1) | CN102143936B (ja) |
CA (1) | CA2734125A1 (ja) |
WO (1) | WO2010026711A1 (ja) |
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WO2013011858A1 (ja) * | 2011-07-15 | 2013-01-24 | ユニーテック株式会社 | 4価白金錯体及びそれを含む医薬組成物 |
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JP4838394B1 (ja) * | 2011-05-13 | 2011-12-14 | ユニーテック株式会社 | 金錯体及びそれを含む医薬組成物 |
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US4140707A (en) | 1972-06-08 | 1979-02-20 | Research Corporation | Malonato platinum anti-tumor compounds |
JPH02108693A (ja) * | 1988-08-31 | 1990-04-20 | Nederland Centr Org Toegepast Natuur Onder | 白金(4)ジアミン錯体 |
WO2005007662A2 (en) * | 2003-07-15 | 2005-01-27 | Johnson Matthey Plc | Biphosphine ruthenium complexes with chiral diamine ligande as catalysts |
-
2009
- 2009-06-30 JP JP2009155399A patent/JP4664424B2/ja not_active Expired - Fee Related
- 2009-08-25 CN CN2009801342997A patent/CN102143936B/zh not_active Expired - Fee Related
- 2009-08-25 CA CA2734125A patent/CA2734125A1/en not_active Abandoned
- 2009-08-25 EP EP09811241A patent/EP2325163A4/en not_active Withdrawn
- 2009-08-25 WO PCT/JP2009/004077 patent/WO2010026711A1/ja active Application Filing
- 2009-08-25 US US13/060,906 patent/US8501977B2/en not_active Expired - Fee Related
- 2009-08-25 KR KR1020117005009A patent/KR20110055594A/ko not_active Application Discontinuation
Patent Citations (4)
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US4140707A (en) | 1972-06-08 | 1979-02-20 | Research Corporation | Malonato platinum anti-tumor compounds |
US4140707B1 (ja) | 1972-06-08 | 1989-12-19 | ||
JPH02108693A (ja) * | 1988-08-31 | 1990-04-20 | Nederland Centr Org Toegepast Natuur Onder | 白金(4)ジアミン錯体 |
WO2005007662A2 (en) * | 2003-07-15 | 2005-01-27 | Johnson Matthey Plc | Biphosphine ruthenium complexes with chiral diamine ligande as catalysts |
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A. C. C. CHAN ET AL., TETRAHEDRON. LETT., vol. 45, 2004, pages 7379 |
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See also references of EP2325163A4 |
VARELA, J.A. ET AL.: "One-Step Synthesis of Spiropyridines, a Novel Class of C2-Symmetric Chiral Ligands, by Cobalt(I)-Catalyzed [2+2+2] Cycloadditions between Bis-Alkynenitriles and Alkynes", ORGANIC LETTERS, vol. 1, no. 13, 1999, pages 2141 - 2143, XP008143129 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2013011858A1 (ja) * | 2011-07-15 | 2013-01-24 | ユニーテック株式会社 | 4価白金錯体及びそれを含む医薬組成物 |
JP2013023444A (ja) * | 2011-07-15 | 2013-02-04 | Unitech Kk | 4価白金錯体及びそれを含む医薬組成物 |
Also Published As
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EP2325163A1 (en) | 2011-05-25 |
EP2325163A4 (en) | 2012-03-21 |
KR20110055594A (ko) | 2011-05-25 |
JP2010083867A (ja) | 2010-04-15 |
CN102143936B (zh) | 2013-11-20 |
JP4664424B2 (ja) | 2011-04-06 |
US20110152555A1 (en) | 2011-06-23 |
CN102143936A (zh) | 2011-08-03 |
CA2734125A1 (en) | 2010-03-11 |
US8501977B2 (en) | 2013-08-06 |
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