研究生: |
紀森多士 Chittimalla Santhosh Kumar |
---|---|
論文名稱: |
藉著熱裂解二聚體生成6,6-二甲氧基環己-2,4-二烯酮 新PPAR 抑制劑當作抗糖尿病試劑的設計與合成 PartI: The Diels-Alder Reactions of 6,6-Dimethoxycyclohexa-2,4-dienones Generated by Pyrolysis of their Dimers; PartII: Design, Synthesis and In Vitro Studies of Novel PPAR Agonists as Anti-Diabetic Agents |
指導教授: |
廖俊臣
Liao, Chun-Chen |
口試委員: | |
學位類別: |
博士 Doctor |
系所名稱: |
理學院 - 化學系 Department of Chemistry |
論文出版年: | 2004 |
畢業學年度: | 93 |
語文別: | 英文 |
論文頁數: | 212 |
中文關鍵詞: | 掩飾鄰苯醌 、骨牌反應 、第二類糖尿病 、新PPAR 抑制劑 |
外文關鍵詞: | Domino Reactions, Type 2 Diabetes, Novel PPAR Agonists |
相關次數: | 點閱:1 下載:0 |
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中文摘要
論文包含兩個部份:
第一部份可分為兩個章節。第一章對本實驗室長期鑽研的掩飾鄰苯醌
(masked o-Benzoquinones)及其Diels-Alder 反應作文獻的整理及介紹;第二
章則探討本論文研究中關於:retro-Diels-Alder 同步進行Diels-Alder 反應的
應用,利用高溫條件下使掩飾鄰苯醌的雙聚物裂解後,同步與數種不同親
雙烯劑進行Diels-Alder 反應而得到多樣化的雙環[2.2.2]辛烯酮類化合物。
這樣的合成方法展現出三個優勢:(1)掩飾鄰苯醌的雙聚物在本實驗室以往
的結果中,一向是掩飾鄰苯醌與親雙烯劑行Diels-Alder 反應的副產物,而
這個副產物則經由此方法可以再被使用; (2)部份無法被合成或產率不高的
掩飾鄰苯醌及親雙烯劑Diels-Alder 產物可以經由這個方法達到提升產率的
效果;(3)可有效減少本實驗室在之前的合成研究中的Diels-Alder 反應的步
驟,增進合成的效能。
第二部份則包含兩個章節。第三章首要介紹糖尿病與過氧增生活化受
體(Peroxisome Proliferator Activated Receptors, PPARs)之關係;最後一章從
設計及合成的角度出發,以具有生體內(in vivo)生理活性之PPARs 相關化
合物作為抗糖尿病藥物的基底,由探討藥理活性的角度針對不同的取代基
(Ligand)進行合成。而在完成一系列藥物分子的合成之後,以之進行生理活
性的測試- 包含Scintillation Proximity Assay (SPA) 的IC50 測試、
Transcriptional Activation Assay (TA)的EC50 測試。而在一系列的測試之後,
發現化合物6e 具有成為藥物的潛力,目前正在進行更進一步的生理活性測
試(利用KKAy mice models)。
ABSTRACT
This thesis consists of two parts
Part I, gives a brief introduction of Diels-Alder reactions and masked
o-benzoquinones and contains the results and discussion along with the experimental
section of the novel domino retro-Diels-Alder (rDA) – Diels-Alder (DA) protocol
applied to the masked o-benzoquinone chemistry for the synthesis of several
bicyclo[2.2.2]octenones and bicyclo[2.2.2]octadienones. This procedure is focused
on 3 main objectives: 1) utilization of a masked o-benzoquinone dimer which was a
side product in the masked o-benzoquinone Diels-Alder chemistry; 2) increase the
yield of the Diels-Alder adducts which were difficult or not possible to synthesize by
earlier procedures; 3) decrease the number of synthetic steps to achieve the desired
Diels-Alder adducts which previously needed more steps.
Part II, gives a brief introduction of diabetes and peroxisome proliferator activated
receptors (PPARs) and the “Design, Synthesis and In Vitro Studies of Novel PPAR
Agonists as Anti-Diabetic Agents” and includes the experimental section of the present
work. A knowledge based drug design is used for synthesizing these novel ligands.
After successfully preparing several molecules, bioassay was conducted and IC50
[using Scintillation Proximity Assay (SPA)] and EC50 [using Transcriptional Activation
Assay (TA)] were obtained for all the compounds. Compound 6e was identified to be
potent PPARα,γ dual agonist and is presently under in vivo studies (KKAy mice
models).
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