JP5722233B2 - 抗がん剤の製造方法 - Google Patents
抗がん剤の製造方法 Download PDFInfo
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- JP5722233B2 JP5722233B2 JP2011547539A JP2011547539A JP5722233B2 JP 5722233 B2 JP5722233 B2 JP 5722233B2 JP 2011547539 A JP2011547539 A JP 2011547539A JP 2011547539 A JP2011547539 A JP 2011547539A JP 5722233 B2 JP5722233 B2 JP 5722233B2
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- phosphine
- isomer
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- 239000002246 antineoplastic agent Substances 0.000 title claims description 38
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- -1 phosphine transition metal Chemical class 0.000 claims description 51
- 229910052723 transition metal Inorganic materials 0.000 claims description 37
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Natural products P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims description 33
- 229910000073 phosphorus hydride Inorganic materials 0.000 claims description 33
- 229910052717 sulfur Inorganic materials 0.000 claims description 32
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical compound C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 claims description 26
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 26
- BWJRMVLPCQPWGR-UHFFFAOYSA-N boron;phosphane Chemical compound [B].P BWJRMVLPCQPWGR-UHFFFAOYSA-N 0.000 claims description 24
- UBZMCXNAFPDBOK-UHFFFAOYSA-N (3-phosphanylpyrazin-2-yl)phosphane Chemical class PC1=NC=CN=C1P UBZMCXNAFPDBOK-UHFFFAOYSA-N 0.000 claims description 21
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 16
- MLCNOCRGSBCAGH-UHFFFAOYSA-N 2,3-dichloropyrazine Chemical compound ClC1=NC=CN=C1Cl MLCNOCRGSBCAGH-UHFFFAOYSA-N 0.000 claims description 12
- PCNDJXKNXGMECE-UHFFFAOYSA-N Phenazine Natural products C1=CC=CC2=NC3=CC=CC=C3N=C21 PCNDJXKNXGMECE-UHFFFAOYSA-N 0.000 claims description 12
- XOJVVFBFDXDTEG-UHFFFAOYSA-N pristane Chemical compound CC(C)CCCC(C)CCCC(C)CCCC(C)C XOJVVFBFDXDTEG-UHFFFAOYSA-N 0.000 claims description 12
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 12
- 229910052737 gold Inorganic materials 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 10
- 239000010931 gold Substances 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- 239000012046 mixed solvent Substances 0.000 claims description 4
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 description 36
- 230000001093 anti-cancer Effects 0.000 description 16
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 125000001424 substituent group Chemical group 0.000 description 9
- 206010028980 Neoplasm Diseases 0.000 description 8
- 125000000217 alkyl group Chemical group 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
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- DRZBLHZZDMCPGX-VXKWHMMOSA-N (r)-tert-butyl-[3-[tert-butyl(methyl)phosphanyl]quinoxalin-2-yl]-methylphosphane Chemical compound C1=CC=C2N=C([P@](C)C(C)(C)C)C([P@](C)C(C)(C)C)=NC2=C1 DRZBLHZZDMCPGX-VXKWHMMOSA-N 0.000 description 6
- 150000001450 anions Chemical class 0.000 description 6
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- 230000000052 comparative effect Effects 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 231100000419 toxicity Toxicity 0.000 description 6
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- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- MAWPZHTVBDJQKE-UHFFFAOYSA-M tert-butyl-[3-[tert-butyl(methyl)phosphanyl]quinoxalin-2-yl]-methylphosphane;chlorogold Chemical compound [Au]Cl.C1=CC=C2N=C(P(C)C(C)(C)C)C(P(C)C(C)(C)C)=NC2=C1.C1=CC=C2N=C(P(C)C(C)(C)C)C(P(C)C(C)(C)C)=NC2=C1 MAWPZHTVBDJQKE-UHFFFAOYSA-M 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 125000000753 cycloalkyl group Chemical group 0.000 description 4
- 239000002552 dosage form Substances 0.000 description 4
- FDWREHZXQUYJFJ-UHFFFAOYSA-M gold monochloride Chemical compound [Cl-].[Au+] FDWREHZXQUYJFJ-UHFFFAOYSA-M 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 231100000053 low toxicity Toxicity 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 4
- 125000004437 phosphorous atom Chemical group 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 229920001450 Alpha-Cyclodextrin Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical group N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 0 Cc(nc1Cl)c(*)nc1Cl Chemical compound Cc(nc1Cl)c(*)nc1Cl 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 231100000111 LD50 Toxicity 0.000 description 3
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 description 3
- 241000700159 Rattus Species 0.000 description 3
- 229940043377 alpha-cyclodextrin Drugs 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 3
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 3
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 239000003446 ligand Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- DRZBLHZZDMCPGX-FGZHOGPDSA-N (s)-tert-butyl-[3-[tert-butyl(methyl)phosphanyl]quinoxalin-2-yl]-methylphosphane Chemical compound C1=CC=C2N=C([P@@](C)C(C)(C)C)C([P@@](C)C(C)(C)C)=NC2=C1 DRZBLHZZDMCPGX-FGZHOGPDSA-N 0.000 description 2
- 125000003229 2-methylhexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 206010009944 Colon cancer Diseases 0.000 description 2
- 229920002261 Corn starch Polymers 0.000 description 2
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- 229930012538 Paclitaxel Natural products 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose 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](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 2
- 229930006000 Sucrose Natural products 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000005073 adamantyl group Chemical group C12(CC3CC(CC(C1)C3)C2)* 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- WHGYBXFWUBPSRW-FOUAGVGXSA-N beta-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO WHGYBXFWUBPSRW-FOUAGVGXSA-N 0.000 description 2
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- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
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- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
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- 238000009495 sugar coating Methods 0.000 description 1
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- 239000003765 sweetening agent Substances 0.000 description 1
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- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- DRZBLHZZDMCPGX-UHFFFAOYSA-N tert-butyl-[3-[tert-butyl(methyl)phosphanyl]quinoxalin-2-yl]-methylphosphane Chemical compound C1=CC=C2N=C(P(C)C(C)(C)C)C(P(C)C(C)(C)C)=NC2=C1 DRZBLHZZDMCPGX-UHFFFAOYSA-N 0.000 description 1
- FFTZVGDORUQOIK-UHFFFAOYSA-N tert-butyl-methyl-quinoxalin-2-ylphosphane Chemical compound C(C)(C)(C)P(C)C1=NC2=CC=CC=C2N=C1 FFTZVGDORUQOIK-UHFFFAOYSA-N 0.000 description 1
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
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- 231100000820 toxicity test Toxicity 0.000 description 1
- 150000003624 transition metals Chemical group 0.000 description 1
- DSDAICPXUXPBCC-MWDJDSKUSA-N trimethyl-β-cyclodextrin Chemical compound COC[C@H]([C@H]([C@@H]([C@H]1OC)OC)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](COC)[C@H]([C@@H]([C@H]3OC)OC)O[C@H]3O[C@H](COC)[C@H]([C@@H]([C@H]3OC)OC)O[C@H]3O[C@H](COC)[C@H]([C@@H]([C@H]3OC)OC)O[C@H]3O[C@H](COC)[C@H]([C@@H]([C@H]3OC)OC)O3)[C@H](OC)[C@H]2OC)COC)O[C@@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@@H]3O[C@@H]1COC DSDAICPXUXPBCC-MWDJDSKUSA-N 0.000 description 1
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Description
得られた式(8)で表されるビス(ホスフィン−ボラン)ピラジンの脱ボラン化反応を行い、式(3)で表される2,3−ビスホスフィノピラジン誘導体の(R,S)異性体のメソ体と、(R,R)異性体及び(S,S)異性体のラセミ体との混合物を得、
前記混合物から分離することで得られた式(3)で表される2,3−ビスホスフィノピラジン誘導体の(R,S)異性体のみを、金、銅又は銀の塩と反応させて、式(1a)〜式(1c)で表されるホスフィン遷移金属錯体をすべて含むものを得ることを特徴とする抗がん剤の製造方法を提供するものである。
得られた式(8)で表されるビス(ホスフィン−ボラン)ピラジンの脱ボラン化反応を行い、式(3)で表される2,3−ビスホスフィノピラジン誘導体の(R,S)異性体のメソ体と、(R,R)異性体及び(S,S)異性体のラセミ体との混合物を得、
前記混合物から分離することで得られた式(3)で表される2,3−ビスホスフィノピラジン誘導体の(R,R)異性体及び式(3)で表される2,3−ビスホスフィノピラジン誘導体の(S,S)異性体のみを、金、銅又は銀の塩と反応させて、式(2)で表されるホスフィン遷移金属錯体を得ることを特徴とする抗がん剤の製造方法を提供するものである。
(1)<ラセミメソ混合−2,3−ビス(tert−ブチルメチルホスフィノ)キノキサリンの合成>
水分を充分に除去し窒素ガスで置換した1L四ツ口フラスコに、カリウム−tert−ブトキシド84.2g(750mmol)、脱水THF375mlを加えた。これを氷浴で0℃に冷却し、ラセミ−tert−ブチルメチルホスフィンボランのTHF60%溶液177.0g(900mmol)を滴下して30分撹拌した。水分を充分に除去し窒素ガスで置換した別の3L四ツ口フラスコに、2,3−ジクロロキノキサリン59.7g(300mmol)、脱水THF300mlと脱水DMF75mlの混合溶液を加え−10℃にした。ここに、最初に合成したホスフィンボラン溶液を滴下して1時間攪拌した。続いてテトラメチルエチレンジアミン139.4g(1200mmol)を加えて室温に戻し3時間攪拌した。10%塩酸600gを滴下してクエンチして分液し、続いて5%塩酸150g、更に2.5%重曹水300gで洗浄した。更に、ヘキサン200mlを加えて純水150mlで洗浄した。得られた有機層を乾固させた後、40℃でメタノール300mlを加え1時間攪拌し、発生した固体をろ過することで、橙色固体の2,3−ビス(tert−ブチルメチルホスフィノ)キノキサリン69.9gを得た(収率69.7%)。同定データは次のとおりである。
・31P−NMR(CDCl3);ラセミ体:−18.1、メソ体:−15.4
・HPLC(カラム Cosmosil 5C18−MS−II 4.6×250mm、移動層 メタノール、流速0.5ml/min、温度30℃、UV 254nm、溶離時間ラセミ体15分、メソ体17分)ラセミ体:メソ体のモル比=52:48
窒素ガスで置換した500ml二口フラスコに、前記の方法で得られた(R,S)−2,3−ビス(tert−ブチルメチルホスフィノ)キノキサリン5.50g(16.4mmol)を一般品THF220mlに溶かした。ここにテトラブチルアンモニウム金ジクロリド4.19g(8.2mmol)を加え、室温で5時間撹拌した。生成した褐色沈殿をろ別し、次いでジクロロメタン42mlに溶かして水50mlで洗浄し、更に硫酸ナトリウムで乾燥した。これをろ過したのち溶液を乾固させた。この固体をジクロロメタン50mlに溶解し、ジエチルエーテル270mlを加え、0℃にしたところ固体が析出し、ビス(2,3−ビス(tert−ブチルメチルホスフィノ)キノキサリン)金(I)クロリド6.60g(収率89.2%)を得た。この化合物は、式(1a)、式(1b)及び式(1c)で表される化合物の混合物から構成されていた。
・31P−NMR(CDCl3);8.5−9.6(m)、11.6−12.6(m)
(1)<(R,R)−2,3−ビス(tert−ブチルメチルホスフィノ)キノキサリンと(S,S)−2,3−ビス(tert−ブチルメチルホスフィノ)キノキサリンとのラセミ体の合成>
実施例1の(1)において、メソ体とラセミ体との分離工程によって、(R,R)−2,3−ビス(tert−ブチルメチルホスフィノ)キノキサリンと(S,S)−2,3−ビス(tert−ブチルメチルホスフィノ)キノキサリンとのラセミ体を得た。
(R,R)−2,3−ビス(tert−ブチルメチルホスフィノ)キノキサリンと(S,S)−2,3−ビス(tert−ブチルメチルホスフィノ)キノキサリンとのラセミ体を用いる以外は、実施例1の(2)の工程と同様にして、ビス(2,3−ビス(tert−ブチルメチルホスフィノ)キノキサリン)金(I)クロリドを得た。この化合物は、式(2)で表される化合物から構成されていた。
・31P−NMR(CDCl3);10.2
(1)<(R,R)−2,3−ビス(tert−ブチルメチルホスフィノ)キノキサリンの合成>
本出願人の先の出願に係る特開2007−56007号公報における実施例1の記載に従い、(R,R)−2,3−ビス(tert−ブチルメチルホスフィノ)キノキサリンを得た。
(R,R)−2,3−ビス(tert−ブチルメチルホスフィノ)キノキサリンを用いる以外は、実施例1の(2)の工程と同様にして、ビス(2,3−ビス(tert−ブチルメチルホスフィノ)キノキサリン)金(I)クロリドを得た。この化合物は、式(1a’)で表される化合物から構成されていた。
・31P−NMR(CDCl3);13.6
・[α]D=+195.3(c=0.5、メタノール、25℃)
実施例及び比較例で得られたホスフィン遷移金属錯体を、マウスに経口投与したときの毒性試験を行った。具体的には、KMマウスの雄雌を約1週間検疫・馴化飼育した後、選ばれたラット雄雌各10匹計20匹を一群とした。投与前一晩絶食させた体重を記録したラットに、溶媒としてコーンオイルを用い、実施例及び比較例で得られたホスフィン遷移金属錯体を、LD50を決定するために十分な死亡例が出る群が含まれるように設定して単回経口投与した。投与後、10、30分、1、2、4時間及び以後毎日、14日目まで観察し、ラットの生存率から50%致死量(LD50)を求めた。この結果を以下の表1に示す。
Claims (2)
- 式(6)で表される2,3−ジクロロピラジンと、式(7)で表されるホスフィン−ボランのラセミ体とを、塩基の存在下、テトラヒドロフラン(THF)及びN,N−ジメチルホルムアミド(DMF)の混合溶媒中で反応させ、式(8)で表されるビス(ホスフィン−ボラン)ピラジンを得、次いで、
得られた式(8)で表されるビス(ホスフィン−ボラン)ピラジンの脱ボラン化反応を行い、式(3)で表される2,3−ビスホスフィノピラジン誘導体の(R,S)異性体のメソ体と、(R,R)異性体及び(S,S)異性体のラセミ体との混合物を得、
前記混合物から分離することで得られた式(3)で表される2,3−ビスホスフィノピラジン誘導体の(R,S)異性体のみを、金、銅又は銀の塩と反応させて、式(1a)〜式(1c)で表されるホスフィン遷移金属錯体をすべて含むものを得ることを特徴とする抗がん剤の製造方法。
- 式(6)で表される2,3−ジクロロピラジンと、式(7)で表されるホスフィン−ボランのラセミ体とを、塩基の存在下、テトラヒドロフラン(THF)及びN,N−ジメチルホルムアミド(DMF)の混合溶媒中で反応させ、式(8)で表されるビス(ホスフィン−ボラン)ピラジンを得、次いで、
得られた式(8)で表されるビス(ホスフィン−ボラン)ピラジンの脱ボラン化反応を行い、式(3)で表される2,3−ビスホスフィノピラジン誘導体の(R,S)異性体のメソ体と、(R,R)異性体及び(S,S)異性体のラセミ体との混合物を得、
前記混合物から分離することで得られた式(3)で表される2,3−ビスホスフィノピラジン誘導体の(R,R)異性体及び式(3)で表される2,3−ビスホスフィノピラジン誘導体の(S,S)異性体のみを、金、銅又は銀の塩と反応させて、式(2)で表されるホスフィン遷移金属錯体を得ることを特徴とする抗がん剤の製造方法。
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