| Project/Area Number |
20390001
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Chemical pharmacy
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KUBOTA Takaaki 北海道大学, 大学院・薬学研究院, 准教授 (60399954)
ISHIYAMA Haruaki 北海道大学, 大学院・薬学研究院, 助教 (70333622)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥19,760,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥4,560,000)
Fiscal Year 2010: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2009: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2008: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
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| Keywords | 機能性天然分子 / 海洋天然物 / 分子標的 / 天然物ライブラリー / 海洋生物 |
|---|
| Research Abstract |
Investigation of extracts of an Okinawan marine organisms (sponge, tunicate, and dinoflagellate etc.) resulted in the isolation of new manzamine alkaloids exhibiting antimalarial and antitrypanosomal activities, new pyridinium alkaloids exhibiting acetylcholine esterase inhibitory activity, and new terpenoid quinones exhibiting tyrosine kinase inhibitory activity. In addition, many new compounds that show cytotoxic activity (pyridine alkaloids, beta-carboline alkaloids, bromotyrosine alkaloids, a macrolide, and sesquiterpenoids) and anti-microbial activity (bromopyrrole alkaloids, bromotyrosine alkaloids, triterpenoids) were isolated from the marine organisms. The absolute stereochemistries of known cytotoxic macrolides, previously isolated from dinoflagellete by our group, were also elucidated.
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