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研究生: 蔡惠如
論文名稱: 一、對掌 -酮醯胺之不對稱還原反應 二、Cisplatin類似物之設計合成
指導教授: 陳焜銘
學位類別: 碩士
Master
系所名稱: 化學系
Department of Chemistry
論文出版年: 2006
畢業學年度: 94
語文別: 中文
中文關鍵詞: 不對稱還原反應cisplatin
論文種類: 學術論文
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本論文主要分為兩個部分,摘要如下:
第一部分在探討對掌-酮醯胺之不對稱還原反應。以具有樟腦架構之N-tosyl camphorpyrazolidinone 70為對掌輔助劑,製備其-酮醯胺衍生物74、76-79為起始物,進行不對稱還原反應。實驗結果顯示:以L-Selectride為還原劑時,雖僅得到中等產率(65-81%)之非鏡像異構物,但可得到不錯之非鏡像超越值(94% de)。且由X-ray單晶繞射解析得知:苯環取代基之副產物80b之絕對立體組態為R-form,故其主產物之絕對立體組態為S-form(若取代基為2-噻吩時,則主產物為R-form)。
第二部分為設計合成具有反式-(-)-(1R,2R)-二胺基環己烷及羧酸根官能基之cisplatin類似物。在醋酸條件下,將反式-(-)-1,2-二胺基環己烷145與L-酒石酸146作用,得到(R,R)-form之白色化合物147後,再將之與氯亞鉑酸鉀在水中反應,可得到具有兩個反式-(-)-1,2-二胺基環己烷官能基之鉑複合物148,產率64%。1H-NMR譜圖中,可見複合物148之構形會隨溫度及時間變化而不同,其分子結構經由1H-NMR、13C-NMR、H-H COSY、NOESY、HMQC及HRMS鑑定確認。

The dissertation is divided into two sections, they are as follows:
I. Diastereoselective reduction of N-tosyl camphorpyrazolidinone 70 derived -keto amides 74、76-79. Treatment of -keto amides 74、76、79 with L-Selectride gave moderate chemical yield (65-81%) and good stereoselectivity (94% de). The absolute configuration of the newly generated stereogenic center in the minor diastereomer 80b was determined to have an R-configuration, as deduced from a single X-ray crystal analysis.
II. Synthesis of trans-(-)-(1R,2R)-diaminocyclohexane and carboxylate substituted cisplatin analogues. The colored compound 147 was prepared from trans-(-)-1,2-diaminocyclohexane 145 and L-tartaric acid 146 in acetic acid. The platinum complex 148 was synthesized in 64% yield by reacting potassium tetrachloro-palatinate with complex 147. 1H-NMR spectral data of variable-temperature in the range 25-55℃ and variable-time in the range of 0 h to 18 h at room temperature of platinum complex 148 revealed that the proton resonances exchanged 148A for 148B form. The structure of the platinum complex 148 was further confirmed by 1H-NMR、13C-NMR、H-H COSY、NOESY、HMQC and HRMS.

目錄 中文摘要 英文摘要 一、對掌-酮醯胺之不對稱還原反應 1.1 序論……………………………………………………........................................1 1.1.1 前言…………………………………………………….....................................1 1.1.2 鏡像選擇之還原反應…………………………………………………….........2 1.1.3 非鏡像選擇之還原反應……………………………………………………….6 1.1.4 還原反應在有機合成上的應用……………………………………………….9 1.1.5 研究動機………………………………………………………………………13 1.2 結果與討論……………………………………………………………………...14 1.2.1 對掌輔助劑之合成……………………………………………………………14 1.2.2 對掌-酮醯胺衍生物之製備…………………………………………………16 1.2.3 對掌-酮醯胺衍生物進行還原反應…………………………………………19 1.2.3.1 溶劑效應…………………………………………………………………….20 1.2.3.2 取代基效應………………………………………………………………….21 1.2.3.3 推測之反應機構…………………………………………………………….22 1.2.4 對掌-hydroxyl amide之水解反應…………………………………………..23 1.2.5 結論……………………………………………………………………………25 二、Cisplatin類似物之設計合成 2.1 序論……………………………………………………………………………..26 2.1.1 前言…………………………………………………………………………...26 2.1.2 鉑金屬複合物在有機合成上的應用………………………………………..30 2.1.3 研究動機……………………………………………………………………..34 2.2 結果與討論…………………………………………………………………….36 2.2.1 鉑金屬複合物之合成………………………………………………………..36 2.2.2 結構之確立…………………………………………………………………..39 2.2.3 鉑金屬複合物進行之氫化反應……………………………………………..52 2.2.4 結論…………………………………………………………………………..52 三、實驗步驟與數據 3.1 分析儀器及基本實驗操作…………………………………………………….54 3.2 對掌輔助劑之製備步驟……………………………………………………….56 3.3 對掌-酮醯胺衍生物之製備步驟…………………………………………….58 3.4 非鏡像羥基化合物之製備步驟……………………………………………….62 3.5 鉑金屬複合物之製備步驟…………………………………………………….65 四、參考文獻……………………………………………………………………66 附錄一 1H及13C-NMR光譜圖……………………………………………..70 附錄二 X-ray 結構解析與數據…………………………………………....102

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