1233705-47-9Relevant academic research and scientific papers
Concise formal synthesis of porothramycins A and B via zincke pyridinium ring-opening/ring-closing cascade
Michels, Theo D.,Kier, Matthew J.,Kearney, Aaron M.,Vanderwal, Christopher D.
supporting information; experimental part, p. 3093 - 3095 (2010/08/20)
Short formal syntheses of the antitumor antibiotics porothramycins A and B from a commercially available ester of the unnatural amino acid 3-(3-pyridyl)alanine are presented. A rearrangement cascade that presumably involves a Zincke-type pyridinium ring-opening followed by cyclization of a pendant nucleophilic amide generates the salient pyrroline ring of the alkaloids.
