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  5. 經由香豆素-3-活性氮丙啶之開環反應合成香豆素-3-甲?胺衍生物及其生物活性評估
 
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經由香豆素-3-活性氮丙啶之開環反應合成香豆素-3-甲?胺衍生物及其生物活性評估

Other Title
Synthesis and Biological Evaluation of Coumarin-3-Carboxamide Derivatives via Ring-Opening Reaction of Coumarin-3-Activated Aziridines
Type
thesis
Date Issued
2006
Author(s)
林立
Advisor
林本元
Subjects
系所名稱:藥學研究所
Abstract
中文摘要 在有機化學領域,香豆素是一種重要結構,並且屬於苯並?喃酮,香豆素廣泛地存在於植物而且具有許多不同的生物活性,包括抗凝血、雌性激素、皮膚光敏性、抗菌活性、抗氧化、血管擴張、鎮靜安眠、止痛、降溫等。 在化學合成和癌症化療中,氮丙啶是一種重要的化合物,有關2-甲基-N-醯基氮丙啶的經由許多親核基開環現象已有多篇報導發表出來,正常的開環現象是指親核基攻擊氮丙啶環上N-C立體障礙小的地方並且斷裂,這是屬於SN2反應,而非正常的開環現象是指親核基攻擊氮丙啶環上N-C立體障礙大的地方並且斷裂,我們使用氮丙啶環的區域選擇性開環合成出一系列的香豆素-3-甲?胺,在此研究經由活性N-香豆素-3-羰基氮丙啶為起始物合成出四個系列的香豆素衍生物,第一個系列我們利用N-香豆素-3-羰基氯 (20) 為起始物在4N氫氧化鈉催化下合成一系列的N-香豆素-3-羰基氮丙啶 (21, 22), 依樣 Stamm、 Mall、Falkenstein、Werry 和 Pen-Yuan Lin等實驗室研究N-醯基氮丙啶與自由基反應現象,第二個系列我們利用N-香豆素-3-羰基氮丙啶 (21, 22) 為起始物在充滿自由基環境下合成一系列的香豆素-3-甲?胺衍生物 (27-40),第三個系列我們利用 N-香豆素-3-羰基氮丙啶 (21, 22) 和 4-羥基香豆素在鹼催化下合成出一系列的香豆素雙體 (41-48), 第四個系列我們利用 N-香豆素-3-羰基氮丙啶 (21, 22) 和 7-羥基香豆素在鹼催化下合成出一系列的香豆素雙體 (49-52),以上所有合成之化合物之物性與化學特性均以核磁共振儀測定其結構,質譜儀、高解析質譜儀測定其分子量,紅外線光譜儀測定部份官能基團並測定熔點。以上所有合成之化合物均測試 cancer cell lines (Colon 205, K-562, MCF7) 細胞毒性測試評估。
URI
https://203.71.86.71/handle/123456789/12445
File(s)
No Thumbnail Available
Name

C0178799.pdf

Size

37.13 MB

Format

Adobe PDF

Checksum

(MD5):951d68dcb1686d6833433f1fa493b60c

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