JP4590524B2 - 抗リーシュマニア剤 - Google Patents
抗リーシュマニア剤 Download PDFInfo
- Publication number
- JP4590524B2 JP4590524B2 JP2003412425A JP2003412425A JP4590524B2 JP 4590524 B2 JP4590524 B2 JP 4590524B2 JP 2003412425 A JP2003412425 A JP 2003412425A JP 2003412425 A JP2003412425 A JP 2003412425A JP 4590524 B2 JP4590524 B2 JP 4590524B2
- Authority
- JP
- Japan
- Prior art keywords
- leishmania
- agent
- chi
- activity
- extract
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Pyrane Compounds (AREA)
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- Medicines Containing Plant Substances (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Description
しかし、現在でも、より安価で副作用が少ない治療薬の開発が望まれている。
本発明は、安価で副作用が少ない抗リーシュマニア剤を提供することを目的とする。
(1)チ・シーまたはチンウィン由来で抗原虫活性を示す物質を有効成分として含有する抗原虫剤。
(2)チ・シーまたはチンウィン由来で抗リーシュマニア活性を示す物質を有効成分として含有する抗リーシュマニア剤。
(3)チ・シーまたはチンウィンの抽出物またはその処理物を有効成分として含有する抗リーシュマニア剤。
(5)ウルシオールを含有する抗リーシュマニア剤。
(6)ウルシオールが次式:
(9)チ・シーまたはチンウィンを粉砕する工程、該粉砕したチ・シーまたはチンウィンを抽出する工程、および必要に応じて精製処理を行う工程を含む、抗リーシュマニア剤の製造方法。
本発明の抗原虫剤または抗リーシュマニア剤は材料が安価であり、製造が容易であるため、安価である。
本発明の抗原虫剤または抗リーシュマニア剤は、チ・シー由来で、抗原虫活性または抗リーシュマニア活性を示す物質を有効成分として含有する。
本発明の抗原虫剤または抗リーシュマニア剤は、チンウィン由来で、抗原虫活性または抗リーシュマニア活性を示す物質を有効成分として含有する。
抽出物および処理方法は、上記チ・シーで用いた方法に準じる。
また、本発明の抗原虫剤または抗リーシュマニア剤を単独で、または組み合わせて、公知の医薬用担体と組み合わせて製剤化することができる。
実施例1 チ・シー抽出物の調製
ミャンマーにて入手したChyi Thee 2.6Kgを粉砕後、メタノール5Lを用いて、12時間ずつ、2回抽出を行った。濾紙により抽出液を濾過した後、濾液を減圧濃縮して、メタノール抽出物240gを得た。このメタノール抽出物の最小致死濃度は6.3μg/mlであった。メタノール抽出液をさらにヘキサン、クロロフォルム、ブタノール、水で液々分配し、各画分を得たが、ヘキサン画分に強い抗リーシュマニア活性があった。
実施例1で得られたヘキサン画分について、シリカゲルカラムクロマト(展開溶媒:ヘキサン−酢酸エチル混合溶媒によるグラジエント溶出、またはヘキサン−クロロフォルム混合溶媒によるグラジエント溶出)による精製を繰り返し行い、ビラワノール、アナカルドール、カルダノールジエンを単離した。また、ブタノール画分をシリカゲルカラムクロマト(展開溶媒:クロロフォルム−メタノール混合溶媒によるグラジエント溶出)、中圧液体クロマトグラフィー(逆層系シリカゲル、展開溶媒:メタノール−水混合溶媒によるグラジエント溶出またはシリカゲル、展開溶媒:クロロフォルム−メタノール混合溶媒によるグラジエント溶出)を用いて精製し、2量体であるテトラヒドロアメントフラボンを単離した。
ビラワノールデータ:
13C-NMR (δ (ppm) in CDCl3) : 143.0 (s), 141.8 (s), 130.1 (d), 129.9 (d), 129.3 (s), 122.1 (d), 120.1 (d), 112.9 (d), 31.9 (t), 31.8 (t), 29.7 (t), 29.5 (t), 29.4 (t), 29.2 (t), 28.9 (t), 27.2 (t), 26.9 (t), 22.6 (t), 22.3 (t), 14.1 (q).
ミャンマーにて入手したチンウィン68gを粉砕後、メタノール1Lを用いて、12時間ずつ、2回抽出を行った。濾紙により抽出液を濾過した後、濾液を減圧濃縮して、メタノール抽出物4.8gを得た。このメタノール抽出物の最小致死濃度は3.1μg/mlであった。この得られたメタノール抽出物をシリカゲルカラムクロマト(1回目 展開溶媒:クロロフォルム−メタノール混合溶媒:グラジエント溶出、2回目 展開溶媒:クロロフォルム−酢酸エチル混合溶媒 グラジエント溶出)、中圧分取クロマトグラフィー(シリカゲル、展開溶媒:ヘキサン−クロロフォルム=1:3混合溶媒)、セファデックスLH−20(展開溶媒:メタノール)にて精製し、ペンジュロン85mgを得た。
ペンジュロンデータ:
1H-NMR δ (ppm) in CDCl3: 6.87 (1H, d, J =8.3 Hz), 6.38 (1H, dd, J =8.3, 2.5 Hz), 6.34 (1H, d, J =1.1 Hz), 6.29 (1H, d, J =2.5 Hz), 4.21 (1H, ddd, J =9.8, 3.0, 1.1 Hz), 4.01 (1H, dd, J =9.8, 1.2 Hz), 3.99 (3H,s ), 3.98 (3H, s ), 3.40 (1H, dddd, J =6.7, 6.0, 3.0, 1.2 Hz), 2.99 (1H, dd, J =16.0, 6.0 Hz), 2.67 (1H, dd, J =16.0, 6.7 Hz);
13C-NMR (δ (ppm) in CDCl3) : 184.1 (s), 183.5 (s), 155.4 (s), 154.6 (s), 146.6 (s), 145.1 (s), 144.6 (s), 131.0 (d), 130.3 (d), 112.1 (s), 108.8 (d), 103.4 (d), 68.1 (d), 61.3 (q), 61.2 (q), 30.8 (t), 28.9 (d).
実施例2で得られたビラワノール、アナカルドールおよびカルダノールジエンおよびビペンジュロンの抗リーシュマニア活性を測定した。
Claims (3)
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