Sökning: "alpha-amino acid synthesis"
Hittade 4 avhandlingar innehållade orden alpha-amino acid synthesis.
1. Asymmetric Synthesis of C-Glycosylated Amino Acids : Incorporation in Collagen Glycopeptides and Evaluation in a Model for Rheumatoid Arthritis
Sammanfattning : This thesis describes stereoselective syntheses of four amino acids, three of which are C-glycosidic analogues of glycosylated amino acids. The overall goal of the project was to probe the interactions between MHC molecules, glycopeptide antigens and T cell receptors, that are essential for development of collagen induced arthritis. LÄS MER
2. Antigens derived from the mucin MUC1 : Solution and solid-phase synthesis of saccharides, peptides and glycopeptides
Sammanfattning : Mucin is a term used to describe a large family of heavily glycosylated proteins which are present on the surfaces of secretory epithelial cells and are overexpressed by many carcinomas. Membrane-bound mucin MUC1 is of special interest. Its backbone consists of repeating units of twenty amino acids with five potential glycosylation sites. LÄS MER
Sammanfattning : Peptide-oligonucleotide conjugates constitute a new class of antisense molecules that exhibit improved biological activity over standard oligonucleotide analogues. Currently, these oligomeric bioconjugates are prepared by either solution- or solid-phase techniques. LÄS MER
4. Synthesis of indole and oxindole derivates incorporating pyrrolidino, pyrrolo or imidazolo moieties
Sammanfattning : The focus of this thesis is on the synthesis of oxindole- and indole-derivatives incorporating pyrrolidins, pyrroles or imidazoles moieties. Pyrrolidino-2-spiro-3'-oxindole derivatives have been prepared in high yielding three-component reactions between isatin, alpha-amino acid derivatives, and suitable dipolarophiles. LÄS MER