| DC 欄位 |
值 |
語言 |
| DC.contributor | 化學學系 | zh_TW |
| DC.creator | 吳欣穎 | zh_TW |
| DC.creator | Hsin-Ying Wu | en_US |
| dc.date.accessioned | 2020-8-20T07:39:07Z | |
| dc.date.available | 2020-8-20T07:39:07Z | |
| dc.date.issued | 2020 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN=107223002 | |
| dc.contributor.department | 化學學系 | zh_TW |
| DC.description | 國立中央大學 | zh_TW |
| DC.description | National Central University | en_US |
| dc.description.abstract | ent-Nabscessin A (2)是由市售的肌醇(myo-inositol)與右旋樟腦二縮醛(dimethyl D-camphor acetal)經由14步合成出來。天然物Nabscessin A (1)的形式合成則是由化合物(-)-70經由化合物(+)-70後續合成ent-Nabscessin A (2)之步驟完成。
此合成的特點是利用肌醇(myo-inositol)原有的六元環架構經由選擇性去氧(deoxygenation)、以疊氮化鈉(sodium azide, NaN3)作為親核試劑進行SN2反應生成碳氮鍵、施陶丁格反應(Staudinger reduction)等步驟，得到其關鍵中心脫氧胺基鯊肌醇(2-deoxy-scyllo-inosamine, DOIA)此種結構。中心核心再經由選擇性酯化等一系列反應生成目標產物。 | zh_TW |
| dc.description.abstract | Enantiomer of Nabscessin A (2) was synthesized from commercial available myo-inositol and dimethyl D-camphor acetal in 14 steps. Formal synthesis of natural Nabscessin A (1) was also achieved by the compound (-)-70, and followed by the steps of compound (+)-70 synthesized enantiomer of Nabscessin A (2).
This synthesis features utilizations of the existing framework of myo-inositol and subsequent transformations, including selective deoxygenation, amino group formation, Staudinger reaction etc, provided the key 2-deoxy-scyllo-inosamine core. The DOIA core then completes the synthesis of our target product through a series of reactions such as selective esterification . | en_US |
| DC.subject | 不對稱合成 | zh_TW |
| DC.subject | Nabscessin A | en_US |
| DC.title | Nabscessin A的不對稱合成 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |