JP5843188B2 - 抗真菌剤の活性増強作用を有する新規物質およびその製造方法と用途 - Google Patents
抗真菌剤の活性増強作用を有する新規物質およびその製造方法と用途 Download PDFInfo
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- JP5843188B2 JP5843188B2 JP2011041894A JP2011041894A JP5843188B2 JP 5843188 B2 JP5843188 B2 JP 5843188B2 JP 2011041894 A JP2011041894 A JP 2011041894A JP 2011041894 A JP2011041894 A JP 2011041894A JP 5843188 B2 JP5843188 B2 JP 5843188B2
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- KOOAFHGJVIVFMZ-WZPXRXMFSA-M micafungin sodium Chemical compound [Na+].C1=CC(OCCCCC)=CC=C1C1=CC(C=2C=CC(=CC=2)C(=O)N[C@@H]2C(N[C@H](C(=O)N3C[C@H](O)C[C@H]3C(=O)N[C@H](C(=O)N[C@H](C(=O)N3C[C@H](C)[C@H](O)[C@H]3C(=O)N[C@H](O)[C@H](O)C2)[C@H](O)CC(N)=O)[C@H](O)[C@@H](O)C=2C=C(OS([O-])(=O)=O)C(O)=CC=2)[C@@H](C)O)=O)=NO1 KOOAFHGJVIVFMZ-WZPXRXMFSA-M 0.000 description 1
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- 150000002823 nitrates Chemical class 0.000 description 1
- 229960000988 nystatin Drugs 0.000 description 1
- VQOXZBDYSJBXMA-NQTDYLQESA-N nystatin A1 Chemical compound O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/CC/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 VQOXZBDYSJBXMA-NQTDYLQESA-N 0.000 description 1
- 238000007911 parenteral administration Methods 0.000 description 1
- 239000006201 parenteral dosage form Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
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- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
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- 229920001296 polysiloxane Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
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- MWEMXEWFLIDTSJ-UHFFFAOYSA-M sodium;3-morpholin-4-ylpropane-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)CCCN1CCOCC1 MWEMXEWFLIDTSJ-UHFFFAOYSA-M 0.000 description 1
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Images
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- Saccharide Compounds (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Description
1.形態的特徴
本菌株は、ポテト・デキストロース寒天培地、麦芽エキス寒天培地、ポテト・キャロット寒天培地で中程度に生育し、各種寒天培地で分生子の着生は良好であった。
フィアライドの大きさは10.8〜30.6(〜46.8)×0.9〜1.7μmで、単生または、2〜3本輪生して生じ、先端にいくほど細くなる。フィアライドの先端から分生子が生じ、粘性球形を形成する。分生子は球形〜亜球形、時々楕円形で、大きさは2.0〜3.5×1.8〜2.5(〜2.8)μm、その表面は滑面である。
各種寒天培地上で、25℃、7日間培養した場合の肉眼的観察結果を表1に示す。
1)最適生育条件
本菌株の最適生育条件はpH5〜8、温度17.0〜25.0℃である。
本菌株の生育範囲はpH3〜10、温度9.2〜29.4℃である。
3)好気性、嫌気性の区別
好気性
上記FKI−4981株の形態的特徴、培養性状および生理的性状に基づき、既知菌種との比較を試みた結果、本菌株をシンプリシリウム(Simplicillium)に属する一菌株と同定し、シンプリシリウム・エスピーFKI−4981と命名した。なお本菌株はシンプリシリウム・エスピーFKI−4981(Simplicillium sp. FKI-4981)として、独立行政法人製品評価技術基盤機構特許生物寄託センターに寄託されている(受託番号:NITE P-1031)。
(1)性状:白色粉末
(2)分子式:C24H44O11
HRESI-MS(m/z)[M+Na]+ 計算値531.2781, 実測値531.2769
(3)分子量:508
ESI-MS(m/z)で[M+Na]+531, [M-H]-507を観測
(4)紫外部吸収スペクトル:メタノール溶液中で測定した紫外部吸収スペクトルは図1に示すとおりであり、λmax(MeOH,ε):218(1,100)、247(500)、332(300)nmに吸収極大を示す。
(5)赤外部吸収スペクトル:臭化カリウム錠剤法で測定した赤外吸収スペクトルは図2に示すとおりであり、νmax 3392、2929、2863、1722、1646、1392、1241、1173、1076cm-1等に特徴的な吸収極大を示す。
(6)比旋光度:[α]D 25 −24°(c=0.1、メタノール)
(7)溶剤に対する溶解性:クロロホルム、ピリジンに易溶、メタノールに難溶、水に不溶。
(8)プロトン及びカーボン核磁気共鳴スペクトル:重ピリジン中で、バリアン社製600 MHz核磁気共鳴スペクトロメータで測定した水素の化学シフト(ppm)及び炭素の化学シフト(ppm)は下記に示すとおりである:
δH:0.78(3H), 0.81(3H), 1.18(4H), 1.22(4H), 1.40(1H), 1.46(2H), 1.59(1H), 1.64(1H), 1.70(1H), 1.75(2H), 2.21(1H), 2.30(1H), 2.78(1H), 2.82(1H), 2.98(1H), 3.32(1H), 3.89(1H), 4.14(1H), 4.23(1H), 4.47(1H), 4.52(1H), 4.53(1H), 4.58(1H), 4.87(1H), 5.20(1H), 5.55(1H) ppm;
δC:14.2,14.3,22.9,23.0,25.3,25.9,32.0,32.2,34.8,38.2,39.8,42.0,44.0,63.2,68.6,69.2,71.8,72.8,74.8,76.0,78.9,102.0,172.4,174.7 ppm。
以上のように、化合物[I]の各種理化学性状やスペクトルデータを詳細に検討した結果、化合物[I]は下記の式[I]で表される化学構造であることが決定された。
寒天斜面培地[グリセロール0.1%(関東化学)、KH2PO4 0.08%(関東化学)、K2HPO4 0.02%(関東化学)、MgSO4・H2O 0.02%(和光純薬)、KCl 0.02%(関東化学)、NaNO3 0.2%(和光純薬)、酵母エキス0.02%(オリエンタル酵母)、寒天1.5%(清水食品)、pH6.0に調整]で培養したFKI−4981株を、種培地[グルコース2%(和光純薬)、ポリペプトン0.5%(和光純薬)、MgSO4・7H2O 0.05%(和光純薬)、酵母エキス0.2%(オリエンタル酵母)、KH2PO4 0.1%(関東化学)、寒天0.1%(清水食品)pH6.0に調整]100mLを分注した500mL容三角フラスコに一白金耳ずつ接種し、27℃で3日間ロータリーシェイカー(210rpm)にて培養した後、生産培地[スクロース3.0%(和光純薬)、可溶性デンプン3.0%(関東化学)、肉エキス1.0%(極東製薬)、エビオス0.3%(アサヒビール)、KH2PO4 0.05%(関東化学)、MgSO4・7H2O 0.05%(和光純薬)、pH6.0に調整]20Lを分注した30L容ジャーファーメンター(2基、三ツワ社製)に1%植菌し、27℃で6日間培養した(回転数:250rpm、通気量:10L/min)。
培養終了後、この培養液(40L)をシャープレス型遠心機(11,000rpm)で遠心分離し、上清と菌体とに分け、分離された菌体にアセトン(9L)を加え、1時間撹拌後、吸引濾過し抽出液を得た。得られた抽出液を減圧下でアセトンを留去し、残った水溶液(9L)を上清と合わせた。これをダイアイオンHP−20(三菱化学)カラム(2L)に通塔し、水、30%、60%、100%アセトンを溶出溶媒(各4L)として用い、500mLずつ分画した。FKI−4981B物質を含む60%アセトン溶出の1〜4番目の画分を集め、減圧下濃縮乾固することで、茶色物質(2.38g)を得た。
実施例1で得た化合物[I]の臨床抗菌薬アムホテリシンBおよびミコナゾールが示す抗真菌活性の増強作用について、ペーパーディスク法を用いた以下の方法で試験した。 試験菌としてカンジダ・アルビカンスATCC64548を用いて、ワックスマン培地[グルコース2.0%(和光純薬)、ペプトン0.5%(和光純薬)、乾燥酵母0.3%(極東製薬)、肉エキス0.5%(極東製薬)、NaCl 0.5%(極東製薬)、CaCO3 0.3%(関東化学)、pH7.0]で27℃、48時間の種培養を行った。その後、GY寒天培地[グルコース1.0%(和光純薬)、酵母エキス0.5%(オリエンタル酵母)、寒天0.8%(清水食品)、pH6.0]に種培地を0.1%植菌した。抗真菌剤アムホテリシンB(シグマ社製)或いはミコナゾール(シグマ社製)のGY寒天培地への添加濃度は、試験菌の生育に影響を与えない、それぞれ0.036μM(終濃度)及び0.0038μM(終濃度)とした。化合物[I]を、ペーパーディスク(薄手6mm:アドバンテック社製)に1枚当たり1、3又は10μgの量で含ませ、乾燥した後、上記のGY寒天培地に載せ、27℃で24時間の培養後に阻止円を測定することにより、化合物[I]の抗真菌剤活性増強剤としての活性を評価した。結果を表2に示す。
実施例1で得た化合物[I]の臨床真菌薬アムホテリシンBが示す抗真菌活性の増強作用について、NCCLS M27-A2法に従って微量液体希釈法を用いた以下の方法で試験した。
Claims (9)
- 請求項1に記載の式[I]で表される物質を生産する能力を有するシンプリシリウム・エスピーFKI−4981(Simplicillium sp. FKI-4981)(受託番号:NITE P-1031)株またはその変異株である微生物を培地に培養し、培養物中に前記物質を蓄積せしめる工程、及び該培養物から前記物質を採取する工程を含む、式[I]で表される物質の製造方法。
- 前記微生物が、シンプリシリウム・エスピーFKI−4981(Simplicillium sp. FKI-4981)(受託番号:NITE P-1031)である、請求項2に記載の方法。
- 請求項1に記載の式[I]で表される物質を生産する能力を有するシンプリシリウム・エスピーFKI−4981(Simplicillium sp. FKI-4981)(受託番号:NITE P-1031)株またはその変異株である微生物。
- シンプリシリウム・エスピーFKI−4981(Simplicillium sp. FKI-4981)(受託番号:NITE P-1031)である、請求項4に記載の微生物。
- 請求項1に記載の式[I]で表される物質又はその製薬学的に許容される塩を有効成分として含有する医薬組成物。
- 前記医薬組成物が真菌感染症の治療または予防用である請求項6に記載の医薬組成物。
- 前記医薬組成物がポリエンマクロライド系薬剤およびアゾール系薬剤から選ばれた少なくとも1種の抗真菌剤の活性を増強するために、この抗真菌剤と一緒に投与されるものである、請求項7に記載の医薬組成物。
- 前記医薬組成物が、ポリエンマクロライド系薬剤およびアゾール系薬剤から選ばれた少なくとも1種の抗真菌剤をさらに含む、請求項7に記載の医薬組成物。
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