首页--医药、卫生论文--药学论文--药物基础科学论文--药物化学论文

Study of Carbohydrate-carbohydrate Interaction: Total Synthesis of Two Deoxy Lewis~x Pentaosyl Glycosphingolipids and Molecular Dynamics Simulations of Lewis~x Cluster

ABSTRACT第2页
摘要第3-7页
ABREVIATIONS第7-9页
CHAPTER Ⅰ INTRODUCTION第9-24页
    1.1.CARBOHYDRATES & GLYCOCONJUGATES第9页
    1.2.CARBOHYDRATE-CARBOHYDRATE INTERACTION IN CELLULAR RECOGNITION AND ADHESION第9-10页
    1.3.GSL AND ITS IMPORTANCE IN COMMUNICATING THE LANGUAGE OF LIFE第10-14页
        1.3.1 Discovery of GSLs第10-12页
        1.3.2 Glycosynapses—Special glycoconjugate microdomains第12-14页
    1.4.CALCIUM-DEPENDENT HOMOTYPIC LE~X-LE~X INTERACTION第14-22页
        1.4.1 What is Le~x?第14-15页
        1.4.2 Experimental approaches for studying Le~x-Le~x interaction第15-22页
    1.5.OBJECTIVE OF THIS WORK第22-24页
CHAPTER Ⅱ SYNTHESIS OF DEOXY LE~X GSLS第24-85页
    Ⅱ.1.GLYCOSYLATION METHODS AND STRATEGIES IN OLIGOSACCHARIDE SYNTHESIS第24-30页
        Ⅱ.1.1 Anomeric leaving group第24-25页
        Ⅱ.1.2 Armed and disarmed donors第25-26页
        Ⅱ.1.3 Reactivity of acceptors第26页
        Ⅱ.1.4 General mechanism of glycosylation and stereoselectivity第26-27页
        Ⅱ.1.5 Protecting groups第27-28页
        Ⅱ.1.6 Strategies of glycosylations第28-30页
    Ⅱ.2.SYNTHETIC STRATEGIES FOR LE~X GSLs第30-35页
    Ⅱ.3.THEORETICAL SECTION第35-45页
        Ⅱ.3.1 Preparation of glucosamine block第35-36页
        Ⅱ.3.2 Preparation of fucose block第36-37页
        Ⅱ.3.3 Preparation of 3-deoxy galactose block第37-38页
        Ⅱ.3.4 Preparation of 4-deoxy galactose block第38-39页
        Ⅱ.3.5 Preparation of lactose block第39-40页
        Ⅱ.3.6 Preparation of deoxy Le~x GSLs第40-45页
    Ⅱ.4.EXPERIMENTAL SECTION第45-85页
        Ⅱ.4.1 Preparation of glucosamine block第45-48页
        Ⅱ.4.2 Preparation of fucose block第48-50页
        Ⅱ.4.3 Preparation of deoxy galactose blocks第50-57页
        Ⅱ.4.4 Preparation of lactose block第57-63页
        Ⅱ.4.5 Preparation of 3d-dexoy Le~x pentasaccharide第63-67页
        Ⅱ.4.6 Preparation of 4d-deoxy Le~x pentasaccharide第67-73页
        Ⅱ.4.7 Preparation of 3d-deoxy Le~x glycosphingolipid第73-78页
        Ⅱ.4.8 Preparation of 4d-deoxy Le~x glycosphingolipid第78-85页
CHAPTER Ⅲ REGIOSELECTIVE GLYCOSYLAITONS第85-98页
    Ⅲ.1.INTRODUCTION第85-89页
    Ⅲ.2.RESULTS AND DISCUSSION第89-91页
    Ⅲ.3.EXPERIMENTAL SECTION第91-98页
CHAPTER Ⅳ STUDY OF FUCOSYLATION第98-109页
    Ⅳ.1.INTRODUCTION第98-102页
    Ⅳ.2.PREPARATION OF ETHYL 2,3,4-TRI-O-ACETYL-1-THIO-α,β-L-FUCOPYRANOSIDE第102-104页
    Ⅳ.3.FUCOSYLATIONS IN PREPARATION OF DEOXY LE~X TRISACCHARIDES第104-108页
        Ⅳ.3.1 Fucosylation using ethyl 2,3,4-tri-O-benzyl-1-thio-β-L-fucopyranoside第106-107页
        Ⅳ.3.2 Fucosylation using ethyl 2,3,4-tri-O-benzyl-1-thio-α-L-fucopyranoside第107-108页
    Ⅳ.4.CONCLUSION第108-109页
CHAPTER Ⅴ MOLECULAR DYNAMICS SIMULATION OF LE~X CLUSTER第109-135页
    Ⅴ.1.A BRIEF INTRODUCTION TO MOLECULAR MODELING第109-113页
    Ⅴ.2.CARBOHYDRATE MODELING第113-117页
        Ⅴ.2.1 Conformational behavior of carbohydrates第113-115页
        Ⅴ.2.2 History of carbohydrate modeling第115-117页
    Ⅴ.3.MD SIMULATION OF LE~X-LE~X INTERACTIONS第117-134页
        Ⅴ.3.1 Previously conformational studies of Le~x第117页
        Ⅴ.3.2 Role of Calcium ions第117页
        Ⅴ.3.3 MD simulation model of Le~x GSL-Le~x GSL interactions第117-118页
        Ⅴ.3.4 Experimental Section第118-124页
        Ⅴ.3.5 Trajectory Analysis第124-134页
            Ⅴ.3.5.1 Stabilization of the system第124-125页
            Ⅴ.3.5.2 Analysis of interaction energies第125-128页
            Ⅴ.3.5.3 Analysis of hydrogen bonds第128-130页
            Ⅴ.3.5.4 Analysis of calcium ions第130-134页
    Ⅴ.4.CONCLUSION第134-135页
REFERENCES第135-144页
Publications During PhD Studies(2004-2007)第144-145页
ACKNOWLEDGEMENTS第145页

论文共145页,点击 下载论文
上一篇:Research on Fuzzy Characterization of Rough Set and Characters of Knowledge Granule
下一篇:Characterization of a Novel Salt Tolerant Bacterium Gracilibacillus sp. GTY and Its Performance of Dye Decolorization