Full Title of Thesis or Dissertation
College/Department Conferring Degree
precurser-directed biosynthesis, berberine, galanthamine, mutasynthesis, natural product analogues
Precursor-directed biosynthesis and mutasynthesis are two methods which utilize nature’s machinery to produce complex natural product analogues. The berbine-producing Berberis Stenophyllia and galanthamine-producing daffodils are chosen as model organisms to evaluate these novel techniques in plants. The synthetic targets chosen as primary precursor analogues to produce fluorinated berberine and galanthamine analogues are 5-fluorodopmaine, 2-fluorodopamine, 3-fluorotyrmaine, and 5-fluoroprotocatechualdehyde. 5-Fluorodopamine is synthesized in 43% yield from 3-fluoroanisole and the crystal structure is reported. Progress towards the synthesis of the three other pre-cursor analogues is reported as well as developing procedures to use Berberis Stenophyllia and daffodils to produce fluorinated berberine and galanthamine analogues.
Speltz, Tom E., "Precursor-directed biosynthesis of non-natural berberine and galanthamine analogues" (2011). College of Liberal Arts & Social Sciences Theses and Dissertations. 91.