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  5. 設計與合成N-芳香基-吲哚為抗癌試劑
 
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設計與合成N-芳香基-吲哚為抗癌試劑

Other Title
Design and synthesis of N-aryl-indole as anticancer agents
Type
thesis
Date Issued
2011-07-07
Author(s)
林子正
Advisor
林美香
Subjects
系所名稱:藥學研究所
Description
學位別:碩士
語文別:中文
指導教授:林美香
共同指導教授:劉景平
口試委員:郭憲壽;陳繼明;林本元
中文關鍵字:denbinobin, 吲哚
Abstract
Denbinobin和calaquinone A皆屬於phenanthrenequinone結構的天然物,主要從蘭科植物當中分離而得;近期許多研究著重在抗癌活性性的探討上,研究結果顯示denbinobin對K-562細胞的IC50值為1.84μM,calaquinone A對於MCF-7細胞EC50值小於0.02μg/mL。截至目前為止,有許多全合成的方法被開發,但還沒有簡捷且可大量合成出denbinobin和calaquinone A的方法,本實驗室為有效地大量合成denbinobin和calaquinone A,以phenylacetic acid與benzaoldehyde進行Perkin condensation,再依序進行FeCl3氧化偶合反應、去羧基反應、AgO的對位甲氧基氧化反應…等,成功合出化合物7,再利用TMSI的選擇性去甲氧基反應可合成denbinobin,此一合成法將運用再calaquinone A的合成。

由於吲哚類化合物是一類重要的具有生物和藥物活性的分子,並被廣泛地應用在藥物合成上。因此,本篇利用吲哚為主要骨架,仿造現有的抗癌天然物的藥物活性結構,合成具強效抗癌活性的吲哚化合物。在現今常見的吲哚合成法中,本論文利用Hemetsberger-Knittel反應合成2-羧基-4,6,7-三甲氧基吲哚,再利用銅進行去羧基反應合成4,6,7-三甲氧基吲哚。將化合物51用碘化銅催化之Ullmann-type arylation成功將不同的芳香環接在吲哚的氮上,合成N-芳香基-4,6,7-三甲氧基吲哚類的化合物,最後使用氧化銀氧化合成N-芳香基-4,7-醌-6-甲氧基吲哚類化合物。仿造天然物所合成的 N-芳香基-4,6,7-三甲氧基吲哚或N-芳香基-4,7-醌-6-甲氧基吲哚的此類化合物(52-72、74-75),目前藥理活性測試尚在進行中。
URI
https://203.71.86.71/handle/123456789/13660

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