A Facile Synthesis of Indole Derivatives by a Palladium‐Catalyzed Process Initiated from Ugi Adducts and their Antifungal Activities

Abstract

AbstractIn this work, an efficient synthesis of indole derivatives through palladium‐catalyzed double isocyanide insertion reactions has been developed. The reaction intermediates could be readily obtained by Ugi reactions. The transformation features broad functional‐group compatibility, commercially available starting materials, and moderate to good reaction yields. Furthermore, the bioactivities of the synthesized compounds were evaluated in mycelial growth tests against Penicilium digitatum and Colletotrichun gloeosporioides, and showed potential antifungal activities.