"Synthesis and Characterization o f Nucleoside Analogues and their Inco" by Andre Henri St. Amant

Date of Award

2011

Degree Type

Thesis

Degree Name

Master of Science

Program

Chemistry

Supervisor

Dr. Robert H. E. Hudson

Abstract

The synthesis o f peptide nucleic acid (PNA) is o f interest for their binding to nucleic acids and their potential for gene-based diagnostics and therapy. This thesis describes the synthesis of Fmoc/Boc protected PNA monomers for thymine (T), 2,6-diaminopurine (DAP), and 2-aminopurine (2AP). The oligomerization and selectivity over mismatches in DNA were studied with 2AP showing a higher selectivity for T over DAP (11.5 °C vs 6 °C). Inclusion of 2AP allowed fluorometric monitoring o f the denaturation o f PNA:DNA hybrid duplexes.. The synthesis o f sin azide-containing PNA monomer was completed and successfully incorporated into PNA. A solid phase copper azide-alkyne cycloaddition was performed in , quantitative yield. The synthesis of alkynes to be incorporated into the PNA is described. The syntheses of the monomers described will make unusual PNAs more accessible, allowing the study o f their unique properties

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