Abstract
The first synthesis of the tetracyclic aromatic compound furo[2,3- g]thieno[2,3- e]indole ("FTI") is described. The synthetic strategy features a photochemical benzannulation based on the reaction of an α-diazo ketone and ynamide which assembles a benzothiophene equipped with substituents that enable subsequent cyclizations to generate the nitrogen and oxygen heterocyclic rings.
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