JP4500951B1 - Dna合成酵素阻害剤 - Google Patents
Dna合成酵素阻害剤 Download PDFInfo
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- JP4500951B1 JP4500951B1 JP2009184255A JP2009184255A JP4500951B1 JP 4500951 B1 JP4500951 B1 JP 4500951B1 JP 2009184255 A JP2009184255 A JP 2009184255A JP 2009184255 A JP2009184255 A JP 2009184255A JP 4500951 B1 JP4500951 B1 JP 4500951B1
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- compound
- dna
- dna synthase
- acid
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- C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
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Abstract
Description
項2 項1に記載の一般式(1)若しくは(2)で表される化合物又はその薬学的に許容し得る塩を有効成分として含有する医薬組成物。
本発明は、一般式(1)若しくは(2)で表される化合物又はその薬学的に許容し得る塩に関する。
一般式(1)及び(2)で表される化合物において、Rで示されるアルキル基としては、例えば、鎖状、分岐状又は環状の炭素数1〜10のアルキル基が挙げられる。具体的には、メチル、エチル、n−プロピル、イソプロピル、n−ブチル、イソブチル、sec−ブチル、ペンチル、シクロペンチル、ヘキシル、シクロヘキシル等の炭素数1〜6のアルキル基が例示される。
本発明の一般式(1)又は(2)で表される化合物は、DNA合成酵素選択的阻害作用を有することから、医薬品への利用が可能である。例えば、DNA合成酵素選択的阻害剤、抗癌剤、抗炎症剤等の医薬組成物として有用である。本発明の化合物は、さらに医薬品開発過程におけるリード化合物として利用することもできる。
(1)菌株の単離と培養
稲毛海浜公園にて採取した花弁をPDA培地(ポテトデキストロース寒天培地)の上で培養し、本菌株(便宜上、IG34HB株と記載する)を単離した。本菌株は菌株同定の結果、トリコデルマ ビレンス(Trichoderma virens;FERM S-10, ATCC 9645, CBS 430.54, IFO 6355, IMI 45553ii, QM 365、NBRC 6347)と同定した。本菌株は1LのPDB培地(ポテトデキストロース液体培地)を入れた2L三角フラスコ6本(合計6L)で26日間静置培養した。
本菌株を培養した培養液はガーゼを用いて菌体を除去した。得られた濾液を塩化メチレンで抽出し、ロータリーエバポレーターを用いて溶媒を留去し、粗抽出物(932 mg)を得られた。この粗抽出物はシリカゲルを担体とし、展開溶媒としてクロロホルム-メタノール(100:0→0:100)を用いたカラムクロマトグラフィーによって図1に示すように6つのフラクション(Fr.A〜Fr.F)に分画した。
化合物1及び化合物2はMS、IR、1H-NMR、13C-NMR、DEPT、1H-1H COSY、HMQC、HMBCによって構造決定した。図2の(A)に化合物1の炭素番号を、(B)には化合物1の1H-1H COSY、HMBC相関を示した。また、図3にはCDCl3中で測定した化合物1の1H-NMR、13C-NMRデータを示した。図4の(A)に化合物2の炭素番号を、(B)には化合物2の1H-1H COSY、HMBC相関を示した。また、図5にはCDCl3中で測定した化合物2の1H-NMR、13C-NMRデータを示した。
化合物2の諸性質およびスペクトルデータ(NMRデータは除く)を次の通りである。無色油状、[α]D 26 -22.3 (c 0.09, CHCl3); IR νmax(film): 2960, 1743, 1716, 1238, 1058, 756, 463 cm-1 (KBr); HR-ESIMS m/z found 583.2509 [M+Na]+ (計算値 C30H40O10Na 583.2513)
上記実施例で得た化合物1(trichoderonic acid A)及び化合物2(trichoderonic acid B)のDNA合成酵素群に対する活性を以下の方法で測定した。
(a - b) / a × 100 = 阻害率(%)
として評価した。得られた結果は50%阻害濃度(μM)として表1に示した。
化合物1(trichoderonic acid A)及び化合物2(trichoderonic acid B)の癌細胞増殖阻害効果を次の方法を用いて評価した。
TPA(12-O-tetradecanoylphorbol-13-acetate)は、慢性炎症を誘発するのみならず、発癌プロモーターとして哺乳類の細胞増殖を促進する。本発明者は、DNA合成酵素阻害作用(特にDNAの修復・組換えに関与するDNA合成酵素λ阻害活性)、抗炎症作用および抗発癌プロモーター活性の間には互いに関連性があるのではないかと考えた。そこで、化合物1(trichoderonic acid A)及び化合物2(trichoderonic acid B)が抗炎症活性を有するかどうかを調べた。その結果を下記の表2に示す。
Claims (6)
- 請求項1に記載の一般式(1)若しくは(2)で表される化合物又はその薬学的に許容し得る塩を有効成分として含有する医薬組成物。
- 請求項1に記載の一般式(1)若しくは(2)で表される化合物又はその薬学的に許容し得る塩を有効成分として含有するDNA合成酵素阻害剤。
- 請求項1に記載の一般式(2)で表される化合物又はその薬学的に許容し得る塩を有効成分として含有する抗癌剤。
- 請求項1に記載の一般式(1)若しくは(2)で表される化合物又はその薬学的に許容し得る塩を有効成分として含有する抗炎症剤。
- 請求項1に記載の一般式(1)若しくは(2)で表される化合物又はその薬学的に許容し得る塩を食品に配合してなる食用組成物。
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KR20050093093A (ko) * | 2004-03-18 | 2005-09-23 | 한국생명공학연구원 | 아폽토시스 저해 활성을 가지는 헵탤리딕산 |
JP2006131595A (ja) * | 2004-11-09 | 2006-05-25 | Univ Nihon | 発癌予防剤及びシクロアルタン型トリテルペン系化合物の製造方法 |
JP2007291121A (ja) * | 1997-07-08 | 2007-11-08 | Bristol Myers Squibb Co | エポチロン誘導体 |
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JPS5677281A (en) * | 1979-11-29 | 1981-06-25 | Sankyo Co Ltd | Antibiotic heptelidic acid and its preparation |
WO1990013901A1 (en) * | 1989-05-10 | 1990-11-15 | Raychem Corporation | Apparatus and method for the reduction of polyolefin insulation cracking of cables |
JPH07149635A (ja) * | 1993-10-12 | 1995-06-13 | Eli Lilly & Co | ホスファチジルイノシトール 3−キナーゼに依存する状態の治療のための製剤 |
JPH07277971A (ja) * | 1994-04-01 | 1995-10-24 | Kobe Steel Ltd | 抗腫瘍剤、ヒト腫瘍細胞に対する選択的細胞障害剤、ヘプテリジン酸クロロヒドリンの生産菌及びその製造方法 |
JP2007291121A (ja) * | 1997-07-08 | 2007-11-08 | Bristol Myers Squibb Co | エポチロン誘導体 |
KR20050093093A (ko) * | 2004-03-18 | 2005-09-23 | 한국생명공학연구원 | 아폽토시스 저해 활성을 가지는 헵탤리딕산 |
JP2006131595A (ja) * | 2004-11-09 | 2006-05-25 | Univ Nihon | 発癌予防剤及びシクロアルタン型トリテルペン系化合物の製造方法 |
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