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Full-Text Articles in Medicinal-Pharmaceutical Chemistry
Enzyme-Mediated And Mechanistic Investigations Of Tetrahydroisoquinoline Synthesis Through The Pictet-Spengler Reaction, Jordan Elise Fauser
College of Science and Health Theses and Dissertations
Tetrahydroisoquinolines (THI) are biologically active natural products with applications to a variety of diseases. These compounds also act as precursors for other pharmacologically active natural products. In this investigation, a new synthetic approach for generation of halogenated THIs was proposed. Using cross-linked tyrosinase aggregate, halogenated tyrosine and tyramine were oxidized to form halogenated catechols such as halogenated L-DOPA and dopamine. In a one-pot synthetic approach, the enzyme oxidation reaction was coupled to the Pictet-Spengler reaction, through the addition of an aldehyde, to generate halogenated THIs. The Pictet-Spengler reaction was catalyzed by the phosphate buffer in the reaction solution. The role ...