WO2012053232A1 - 抗リーシュマニア化合物及び抗リーシュマニア薬 - Google Patents
抗リーシュマニア化合物及び抗リーシュマニア薬 Download PDFInfo
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- WO2012053232A1 WO2012053232A1 PCT/JP2011/055292 JP2011055292W WO2012053232A1 WO 2012053232 A1 WO2012053232 A1 WO 2012053232A1 JP 2011055292 W JP2011055292 W JP 2011055292W WO 2012053232 A1 WO2012053232 A1 WO 2012053232A1
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- A61K31/19—Carboxylic acids, e.g. valproic acid
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- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/02—Algae
- A61K36/03—Phaeophycota or phaeophyta (brown algae), e.g. Fucus
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- C07C403/02—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains containing only carbon and hydrogen atoms
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- C07C403/14—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by doubly-bound oxygen atoms
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- C07C403/14—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by doubly-bound oxygen atoms
- C07C403/16—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by doubly-bound oxygen atoms not being part of —CHO groups
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- C07C403/20—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by carboxyl groups or halides, anhydrides, or (thio)esters thereof
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- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
- C07D311/70—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with two hydrocarbon radicals attached in position 2 and elements other than carbon and hydrogen in position 6
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- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
- C07D311/70—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with two hydrocarbon radicals attached in position 2 and elements other than carbon and hydrogen in position 6
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Definitions
- the present invention relates to an anti-leishmania compound and an anti-leishmania drug having high anti-leishmania activity.
- Leishmaniasis is an infectious disease that develops due to infection with Leishmania protozoa, and has been designated as one of the six major tropical diseases by WHO. It is transmitted through the blood-sucking insect, butterfly flies, and Leishmania parasites infect the body when sucking blood. Although the symptoms of leishmaniasis range from mild to severe, pentavalent antimony used mainly as a therapeutic agent is known to cause strong side effects. Therefore, a new drug with a low risk of side effects is required. Amphotericin B ⁇ (AmBisome) is a drug that suppresses side effects, but there is a problem that the drug price is high.
- the inventors of the present invention have found that the present invention has high anti-Leishmania activity as a result of fractionation of the extract, focusing on the brown algae Hivemata genus Sargassum yamadae. It came to be completed.
- the anti-Leishmania compound according to the present invention is Formula (3) It is represented by
- the anti-Leishmania drug according to the present invention is characterized by containing as an active ingredient a compound represented by the formula (3) and a pharmacologically acceptable salt thereof.
- an anti-Leishmania compound and an anti-Leishmania drug exhibiting high anti-Leishmania activity can be provided.
- the anti-Leishmania compound according to the present invention comprises at least one of the compounds represented by the formulas (1) to (6), and the anti-Leishmania drug according to the present invention is represented by the formulas (1) to (6). At least one of the represented compounds is contained as an active ingredient.
- a metabolite is collected from algae such as brown algae in consideration of the physicochemical properties of the compound.
- Any commonly used separation and purification means may be used as appropriate.
- the algae is extracted with an organic solvent, preferably a mixed solvent of equal amounts of chloroform and methanol.
- the compound may be further extracted from the obtained extract with an organic solvent such as dichloromethane, or the compound may be adsorbed and eluted using various types of chromatography. Further, if necessary, a purification operation can be performed to recover a compound having a desired purity.
- conventional inorganic and organic carriers such as silica gel and polystyrene resin can be used as carriers.
- the compounds represented by the formulas (1) to (6) are useful, for example, as antiprotozoal drugs in the pharmaceutical field, particularly as anti-leishmania drugs.
- the compounds represented by any one of the formulas (1) to (6) may be used alone, or may be formulated by mixing with generally pharmaceutically acceptable additives.
- the dosage form includes tablets, granules, capsules, pills, powders, liquids, suspensions, emulsions, syrups, elixirs, extracts, and other oral forms or injections, Examples include administration forms using parenteral agents such as liquids, suppositories, ointments, patches, poultices, lotions and the like, but there is no particular limitation, and it can be appropriately selected depending on the purpose of treatment.
- additives such as excipients, binders, disintegrants, lubricants, and the like can be contained.
- excipients include starch, carboxymethylcellulose, sucrose, dextrin, corn starch and the like.
- binders crystalline cellulose, crystalline cellulose / carmellose sodium, methyl cellulose, hydroxypropyl cellulose, low-substituted hydroxypropyl cellulose, hydroxypropyl methylcellulose, hydroxypropylmethylcellulose phthalate, hydroxypropylmethylcellulose acetate succinate, carmellose sodium, ethylcellulose, Carboxymethylethylcellulose, hydroxyethylcellulose, wheat starch, rice starch, corn starch, potato starch, dextrin, pregelatinized starch, partially pregelatinized starch, hydroxypro-W pill starch, pullulan, polyvinylpyrrolidone, aminoalkyl methacrylate copolymer E, aminoalkyl methacrylate Examples include rate copolymer RS, methacrylic acid copolymer L, methacrylic acid copolymer, polyvinyl acetal diethylaminoacetate, polyvinyl alcohol, gum arabic, gum arabic powder,
- Disintegrants include crystalline cellulose, methylcellulose, low-substituted hydroxypropylcellulose, carmellose, carmellose calcium, carmellose sodium, croscarmellose sodium, wheat starch, rice starch, corn starch, potato starch, partially pregelatinized starch, hydroxy Examples include propyl starch, carboxymethyl starch sodium, and tragacanth.
- Lubricants include wheat starch, rice starch, corn starch, stearic acid, calcium stearate, magnesium stearate, hydrous silicon dioxide, light anhydrous silicic acid, synthetic aluminum silicate, dry aluminum hydroxide gel, talc, aluminum aluminometasilicate Examples thereof include magnesium acid calcium, calcium hydrogen phosphate, anhydrous calcium hydrogen phosphate, sucrose fatty acid ester, waxes, hydrogenated vegetable oil, and polyethylene glycol.
- coloring agents, flavoring agents, flavoring agents, etc. are added in addition to generally used inert diluents such as water and vegetable oils. You may make it contain as an agent.
- additives such as suspensions, emulsions, and solubilizers for use can be contained.
- fat, fatty oil, lanolin, petrolatum, paraffin, wax, resin, plastic, base, glycols, higher alcohol, water, emulsifier, suspending agent, etc. Can be included.
- a poultice, glycerin, water, water-soluble polymer, water-absorbing polymer and the like can be added as additives.
- a lotion agent a solvent, an emulsifier, a suspending agent, etc. can be contained as an additive.
- the anti-Lyusmania compound of the present invention can be added to foods, chewing gums, beverages, etc., and can be contained in so-called foods for specific health (for example, anti-Lyusmania foods) and supplements.
- the compounds represented by the above formulas (1) to (6) are concepts including pharmacologically acceptable salts of these compounds. That is, the present invention includes biochemical precursors that change to the above compounds and amides by being metabolized in the human or animal body and exhibit pharmacological activity.
- the pharmacologically acceptable salt refers to a salt obtained by treating the above compound with an acid or a base, and has no significant toxicity and can be used as a medicine.
- acid addition salts include addition salts with inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid, and organic acids such as maleic acid, fumaric acid, tartaric acid, citric acid, and the like.
- salts based on alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, alkaline earth metal hydroxides such as calcium hydroxide and magnesium hydroxide, and salts based on organic bases such as guanidine, triethylamine and dicyclohexylamine. can give.
- fractions E, K, N, and O were further analyzed by open column chromatography, thin layer chromatography, and HPLC using a mixed eluate of ethyl acetate-hexane. Of the compound was isolated.
- fraction E was subjected to thin layer chromatography to obtain several types of fractions.
- the compound represented by Formula (5) was obtained from the fraction f. Further, the fraction e was subjected to HPLC to obtain a compound represented by the formula (5) at a retention time of 18 minutes.
- the mass (mg) of the obtained fraction is shown in the lower part of the fraction name.
- the formula number of the compound is shown in bold.
- the fractions obtained when HPLC was performed showed the retention time, the mass (mg) of the obtained compound in order from the top, and further the compounds represented by the above formulas (1) to (6). In either case, the formula number of the compound is shown in bold.
- HPLC was performed on fraction K using a 20% ethyl acetate-hexane eluent, and sargaquinoic acid was retained at a retention time of 28 minutes, and formula (1) at a retention time of 31 minutes.
- the compound represented was obtained.
- fraction N was subjected to HPLC using thin layer chromatography and 20% ethyl acetate-hexane eluent, and the compound represented by formula (2) (HREIMS) at a retention time of 28 minutes in HPLC.
- HREIMS formula (2)
- fraction C ′ and fraction D ′ were combined and extracted with Sep-Pak.
- the fraction extracted using a 0.5% ethyl acetate-hexane mixed eluate was subjected to HPLC using a 1% ethyl acetate-hexane eluent to obtain a compound represented by the formula (6) at a retention time of 182 minutes.
- the fraction extracted using 1% ethyl acetate-hexane mixed eluate was subjected to HPLC using 7% ethyl acetate-hexane eluent to obtain the compound represented by formula (5) at a retention time of 108 minutes. .
- the fraction E ′ was subjected to thin layer chromatography, and further subjected to HPLC using a 20% ethyl acetate-hexane mixed eluate.
- a compound represented by formula (5) at a retention time of 40 minutes and a compound represented by formula (4) at a retention time of 76 minutes (EIMS m / z 408 C 27 H 36 O 3 [M +], m / z 175 [M ⁇ C 15 H 25 O]) were obtained respectively.
- the obtained compound was analyzed for molecular structure by 1 H- and 13 C-NMR.
- the NMR spectrum data is shown in the table below.
- the NMR data of the compound represented by the formula (1) is shown together with the NMR data published in Bull. Chem. Soc. Jpn., 2008, 81 (9) 1125-1130, and represented by the formula (4).
- the NMR data of the compound is shown together with the NMR data of the structurally similar sargachromenol, and the NMR data of the compounds represented by the formulas (5) and (6) are shown together with the NMR data of the sargaquinoic acid. It was.
- Measurement of anti-leishmania activity Measurement of in vitro anti-leishmania activity Physiological activity of the compounds represented by formulas (1) to (6) isolated by the above-described procedure was measured under the following conditions. As a Leishmania protozoa, Leishmania.major promastigotes was selected, and using L.major / egfp promastigotes into which the fluorescent protein egfp gene was introduced, the growth inhibition rate was determined under the following conditions using the above compound as a sample.
- L. major / egfp promastigotes cultured in 199 medium (Nissui Pharmaceutical) supplemented with 25% 10% fetal bovine serum and Hepes Buffer (ICN Biomedeivals Inc., Aurora, OH) using a 96-well plate at 25 ° C did.
- 100 ⁇ L of L. major / egfp protozoa (1 ⁇ 10 6 cell / mL) and 100 ⁇ L of sample solution (dissolved in DMSO) were added to each well of a 96-well plate, and cultured at 25 ° C. for 72 hours. Thereafter, the fluorescence signal of L.
- FIG. 9 shows the growth inhibition rate obtained as a result of the measurement.
- mice Femaleb / C, male, 6 per group were infected with cultured promastigotes of Leishmania parasite L. major PM2 strain 1 ⁇ 10 7 . From the day after the infection, 200 ⁇ g of the compound represented by the formula (3) was administered to each specimen by intraperitoneal inoculation. The administration schedule was once a day for 3 consecutive weeks. In addition, as a control, measurement was also performed on the treatment group to which Amphotericin B was administered and the treatment group to which nothing was administered.
- FIG. 11 shows the change in antibody titer in mouse blood.
- FIG. 12 shows the result of electrophoresis of a DNA product amplified by PCR performed using DNA extracted from mouse blood as a template and targeting the protozoan gene. That is, FIG. 12 shows the result of detection of protozoan DNA in blood.
- a PCR product is observed at a position of 310 bp.
- the darker the white color the higher the concentration of protozoan DNA.
- 310 bp is black, it indicates that there is no protozoan DNA.
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Abstract
Description
(1)脂質成分の抽出
褐藻類ヒバマタ目ホンダワラ科アズマネジモク(Sargassum yamadae)(294.4g)をメタノールとクロロホルムの等量混合溶媒(1.4L)に1日浸漬し、吸引濾過により残渣を除き脂質成分を抽出した。さらに、この残渣についてメタノールとクロロホルムの等量混合溶媒(1.4L)に1日浸漬し、吸引濾過を行うことにより脂質成分を抽出した。溶媒を減圧下で除去し、得られた抽出物(31.2g)を水とクロロホルムにより二層分配し、脂質成分(23.8g)を得た。なお、ネジモクは採取後人工海水により洗浄して恒温除湿室で乾燥し、粉砕後実験に使用するまで-20℃で保存した。
(1)に示す操作により得られた脂質成分のうち、5.14gを分別し、図1に示すように酢酸エチルーヘキサン系の溶媒の割合を変えながらオープンカラムクロマトグラフィー(φ7×45cm)によりA~Pの16の画分に分けた。
上述の脂質成分の抽出操作により得られた脂質成分のうち分離操作1回目で使用しなかった残りの18.6gについて酢酸エチル-ヘキサン系の溶媒の割合を変えながら図6に示すようにオープンカラムクロマトグラフィー(φ7×45cm)によりA’~O’の15の画分に分けた。
(1)in vitro抗リーシュマニア活性測定
上述した手順により単離した式(1)~(6)で表される化合物について下記に示す条件の下、生理活性測定を行った。リーシュマニア原虫として、Leishmania.major promastigotesを選択し、蛍光蛋白egfp遺伝子を導入したL.major/egfp promastigotesを用いて、上記化合物をサンプルとして下記の条件で成長阻害率を求めた。
25℃において96-穴プレートを用いて10 %ウシ胎児血清25 mMおよびHepes Buffer(ICN Biomedeivals Inc., Aurora, OH)を添加した199培地(日水製薬)中でL.major/egfp promastigotesを培養した。次に、96穴プレートの各ウェルにL.major/egfp 原虫100 μL(1×106 cell/mL)及びサンプル溶液100 μL(DMSOに溶解)を加え、25℃で72時間培養を行った。その後、蛍光マイクロプレート読み取り装置(Fluoroscan Ascent FL, 大日本製薬)を用いて励起光485 nm、放射光538 nmでL.major/egfp promastigotesの蛍光シグナルを測定した。また、標準物質としてAmphotericin Bを用いた場合の成長阻害率を100%として、各試料の阻害率を示した。
上述の手順により単離した式(3)で表される化合物についてin vivoにおける抗リーシュマニア活性を評価するためにリーシュマニア症マウスモデルを用いて治療効果を調べた。
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Application Number | Priority Date | Filing Date | Title |
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US13/146,366 US8373006B2 (en) | 2010-10-19 | 2011-03-08 | Anti-leishmanial compound and anti-leishmanial drug |
EP11738937.9A EP2557076B1 (en) | 2010-10-19 | 2011-03-08 | Anti-leishmania compound and anti-leishmania drug |
KR1020117018147A KR101114629B1 (ko) | 2010-10-19 | 2011-03-08 | 항리슈마니아 화합물 및 항리슈마니아 약 |
JP2011517547A JP4762381B1 (ja) | 2010-10-19 | 2011-03-08 | 抗リーシュマニア化合物及び抗リーシュマニア薬 |
CN2011800009867A CN102753521B (zh) | 2010-10-19 | 2011-03-08 | 抗利什曼原虫化合物以及抗利什曼原虫药 |
HK13102787.8A HK1175457A1 (en) | 2010-10-19 | 2013-03-06 | Anti-leishmania compound and anti-leishmania drug |
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PCT/JP2011/073482 WO2012053408A1 (ja) | 2010-10-19 | 2011-10-13 | 抗リーシュマニア化合物及び抗リーシュマニア薬 |
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US (1) | US8809555B2 (ja) |
EP (4) | EP2557076B1 (ja) |
JP (5) | JP4987173B2 (ja) |
KR (2) | KR101114629B1 (ja) |
CN (2) | CN102753521B (ja) |
HK (2) | HK1175456A1 (ja) |
WO (2) | WO2012053232A1 (ja) |
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US9675684B2 (en) | 2013-03-28 | 2017-06-13 | The United States Of America As Represented By The Secretary Of The Army | Gene optimized hantaan virus M segment DNA vaccine for hemorrhagic fever with renal syndrome |
ES2766424T3 (es) * | 2015-03-19 | 2020-06-12 | Daiichi Sankyo Co Ltd | Preparación sólida que contienen agente oxidante |
CA3096246C (en) | 2018-07-30 | 2023-09-05 | Daiichi Sankyo Company, Limited | Stabilizer-containing solid drug formulation |
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WO1994006439A1 (en) * | 1992-09-22 | 1994-03-31 | Department Of The Army, United States Government | Antileishmanial composition for topical application |
JP3418724B2 (ja) * | 2000-02-10 | 2003-06-23 | 国立医薬品食品衛生研究所長 | セスキテルペノイド化合物及びそれを含む医薬 |
JP2004331545A (ja) | 2003-05-06 | 2004-11-25 | Japan Science & Technology Agency | 抗リーシュマニア剤 |
WO2006011394A1 (ja) | 2004-07-30 | 2006-02-02 | Japan Health Sciences Foundation | 抗原虫剤 |
JP2006321728A (ja) | 2005-05-17 | 2006-11-30 | Osaka Bioscience Institute | 新規な抗リーシュマニア医薬組成物 |
JP4762381B1 (ja) * | 2010-10-19 | 2011-08-31 | 学校法人青山学院 | 抗リーシュマニア化合物及び抗リーシュマニア薬 |
-
2011
- 2011-03-08 KR KR1020117018147A patent/KR101114629B1/ko active IP Right Review Request
- 2011-03-08 CN CN2011800009867A patent/CN102753521B/zh active Active
- 2011-03-08 WO PCT/JP2011/055292 patent/WO2012053232A1/ja active Application Filing
- 2011-03-08 EP EP11738937.9A patent/EP2557076B1/en active Active
- 2011-10-13 KR KR1020127020093A patent/KR101232552B1/ko active IP Right Grant
- 2011-10-13 EP EP11834248.4A patent/EP2520562B1/en active Active
- 2011-10-13 JP JP2012502793A patent/JP4987173B2/ja not_active Expired - Fee Related
- 2011-10-13 EP EP13181681.1A patent/EP2668946B1/en active Active
- 2011-10-13 US US13/583,345 patent/US8809555B2/en active Active
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- 2011-10-13 WO PCT/JP2011/073482 patent/WO2012053408A1/ja active Application Filing
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- 2013-03-06 HK HK13102787.8A patent/HK1175457A1/xx not_active IP Right Cessation
Non-Patent Citations (4)
Title |
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BULL. CHEM. SOC. JPN., vol. 81, no. 9, 2008, pages 1125 - 1130 |
JUNG ET AL.: "Meroditerpenoids from the Brown Alga Sargassum siliquastrum", JOURNAL OF NATURAL PRODUCTS, vol. 71, no. 10, 2008, pages 1714 - 1719, XP055055273 * |
See also references of EP2557076A4 * |
Y. FREILE-PELEGRIN, D. ROBLEDO, M.J. CHAN-BACAB, B.O. ORRTEGA-MORALES: "Antileishmanial properties of tropical marine algae extract, Fitoterapia (Holland", vol. 79, 2008, ELSEVIER, pages: 374 - 377 |
Also Published As
Publication number | Publication date |
---|---|
KR101114629B1 (ko) | 2012-03-13 |
US20130245288A1 (en) | 2013-09-19 |
CN102811992A (zh) | 2012-12-05 |
EP2668946B1 (en) | 2014-08-13 |
CN102753521A (zh) | 2012-10-24 |
EP2557076B1 (en) | 2013-10-09 |
EP2668950B1 (en) | 2014-08-13 |
US8809555B2 (en) | 2014-08-19 |
JP2012131804A (ja) | 2012-07-12 |
JP5044050B2 (ja) | 2012-10-10 |
HK1175457A1 (en) | 2013-07-05 |
JP5044051B2 (ja) | 2012-10-10 |
JP2012131805A (ja) | 2012-07-12 |
JP4987173B2 (ja) | 2012-07-25 |
JPWO2012053408A1 (ja) | 2014-02-24 |
JP5044052B2 (ja) | 2012-10-10 |
EP2668946A1 (en) | 2013-12-04 |
KR20120099298A (ko) | 2012-09-07 |
EP2520562A1 (en) | 2012-11-07 |
JP2012131806A (ja) | 2012-07-12 |
WO2012053408A1 (ja) | 2012-04-26 |
HK1175456A1 (en) | 2013-07-05 |
EP2557076A8 (en) | 2013-04-10 |
EP2557076A1 (en) | 2013-02-13 |
CN102753521B (zh) | 2013-07-10 |
EP2668950A1 (en) | 2013-12-04 |
KR101232552B1 (ko) | 2013-02-12 |
JP2012131807A (ja) | 2012-07-12 |
EP2557076A4 (en) | 2013-04-24 |
JP5044053B2 (ja) | 2012-10-10 |
EP2520562B1 (en) | 2014-08-13 |
CN102811992B (zh) | 2015-06-17 |
EP2520562A4 (en) | 2013-07-03 |
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