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- Ogawa Ai
- Graduate School of Life and Environmental Sciences, University of Tsukuba
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- Miyamae Yusaku
- Graduate School of Life and Environmental Sciences, University of Tsukuba
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- Honma Atsushi
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology
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- Koyama Tomoyuki
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology
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- Yazawa Kazunaga
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology
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- Shigemori Hideyuki
- Graduate School of Life and Environmental Sciences, University of Tsukuba
書誌事項
- タイトル別名
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- Pycnalin, a New .ALPHA.-Glucosidase Inhibitor from Acer pycnanthum
- Pycnalin a new a glucosidase inhibitor from Acer pycnanthum
この論文をさがす
抄録
A new compound, pycnalin (1), together with four known compounds, ginnalins A (2), B (3), C (4), and 3,6-di-O-galloyl-1,5-anhydro-D-glucitol (3,6-di-GAG) (5), were isolated from Acer pycnanthum. The structure of 1 was determined on the basis of 2D-NMR spectral data and synthesis of 1. Pycnalin (1) is the first 1,5-anhydro-D-mannitol linked to a gallic acid, while compounds 2—5 were 1,5-anhydro-D-glucitol linked to gallic acids. All compounds were tested in vitro for α-glucosidase inhibitory and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activities. Pycnalin (1) exhibited moderate α-glucosidase inhibitory activity as well as free radical scavenging activity. Ginnalin A (2) and 3,6-di-GAG (5), which have two galloyl groups, exhibited potent α-glucosidase inhibition, compared to those of other compounds 1, 3, and 4 containing a galloyl group. These results suggest that α-glucosidase inhibition is influenced by the number of galloyl groups.
収録刊行物
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- CHEMICAL & PHARMACEUTICAL BULLETIN
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CHEMICAL & PHARMACEUTICAL BULLETIN 59 (5), 672-675, 2011
公益社団法人 日本薬学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390001204173350272
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- NII論文ID
- 130000648886
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- NII書誌ID
- AA00602100
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- ISSN
- 13475223
- 00092363
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- NDL書誌ID
- 11058245
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可