Visible-Light-Mediated Construction of Pyrroloindolines via an Amidyl Radical Cyclization/Carbon Radical Addition Cascade: Rapid Synthesis of (±)-Flustramide B.

The development of visible-light-mediated synthesis of pyrroloindolines via an amidyl radical cyclization-carbon radical functionalization cascade is reported. The transformation shows a broad substrate scope, tolerating a variety of substitutions on indole aromatic rings and N-centers. Different functionalized alkene systems could be used as radical acceptors. Relying on this strategy, a rapid synthesis of flustramide B was achieved.