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Synthetic studies towards homotyrosinol sulfonamide derivatives via Heck-Mizoroki coupling reactions Zhou, Yuan
Abstract
Homotyrosine, as a nonproteinogenic α-amino acid, is present as a component of diverse natural products that have important biological activities. Therefore, homotyrosine and its derivatives are important precursors for the total synthesis of some natural products. However, up to now, there was no report concerning a reliable synthetic route towards the synthesis of homotyrosine or its derivatives in a preparative scale. In this thesis, a robust method was developed for the preparation of homotyrosinol derivatives and related intermediates through a Mizoroki-Heck coupling reaction between an aryl iodide and appropriate amino acid-derived olefins in the presence of N-phenylurea as the ligand. In addition, a preparative scale protocol for the oxidative cyclization of the homotyrosinol sulfonamide derivative was established. These results are essential for various synthetic efforts towards more complicated natural products ongoing in our laboratory.
Item Metadata
Title |
Synthetic studies towards homotyrosinol sulfonamide derivatives via Heck-Mizoroki coupling reactions
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
2009
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Description |
Homotyrosine, as a nonproteinogenic α-amino acid, is present as a component of diverse natural products that have important biological activities. Therefore, homotyrosine and its derivatives are important precursors for the total synthesis of some natural products. However, up to now, there was no report concerning a reliable synthetic route towards the synthesis of homotyrosine or its derivatives in a preparative scale.
In this thesis, a robust method was developed for the preparation of homotyrosinol derivatives and related intermediates through a Mizoroki-Heck coupling reaction between an aryl iodide and appropriate amino acid-derived olefins in the presence of N-phenylurea as the ligand. In addition, a preparative scale protocol for the oxidative cyclization of the homotyrosinol sulfonamide derivative was established. These results are essential for various synthetic efforts towards more complicated natural products ongoing in our laboratory.
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Genre | |
Type | |
Language |
eng
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Date Available |
2009-12-16
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Provider |
Vancouver : University of British Columbia Library
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Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI |
10.14288/1.0061167
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
2010-05
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Campus | |
Scholarly Level |
Graduate
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Rights URI | |
Aggregated Source Repository |
DSpace
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Rights
Attribution-NonCommercial-NoDerivatives 4.0 International