393553-57-6Relevant articles and documents
C4?H alkoxylation of 6-bromoindole and its application to the synthesis of breitfussin B
Nabi, Ardalan A.,Liyu, Jessica,Lindsay, Ashley C.,Sperry, Jonathan
, p. 1199 - 1202 (2018)
Subjecting 6-bromoindole to an iridium-catalysed triborylation-diprotodeborylation sequence followed by Chan-Evans-Lam coupling gives 6-bromo-4-methoxyindole in good overall yield. This indole C4?H alkoxylation process was used in a formal synthesis of the natural product breitfussin B.
A Concise Total Synthesis of Breitfussin A and B
Pandey, Sunil Kumar,Guttormsen, Yngve,Haug, Bengt Erik,Hedberg, Christian,Bayer, Annette
supporting information, p. 122 - 125 (2015/07/28)
(Chemical Equation Presented). The first total synthesis of breitfussin A and B is described. The approach features two palladium-catalyzed cross-couplings installing the indole and pyrrole onto the oxazole core and selective lithiation/iodination of a common indole-oxazole fragment providing 2,4-diiodinated or 2-iodinated oxazoles as potential precursors for breitfussin A and B, respectively. An unexpected acid promoted deiodination was utilized in the synthesis of breitfussin B. Comparison of the synthetic material with previously reported spectral data of isolated breitfussin A and B verified the structure of the breitfussin framework.