De novo synthesis of teleocidin B analogs

Teleocidin B analogs have been synthesized in 24 steps and 1.9% overall yield. The key steps include aromatic Claisen rearrangement, intramolecular Heck reaction of a tetra-substituted alkene, and ruthenium (II) catalyzed indole cyclization. Teleocidin and the new analogs promote cell spreading on fibroblast cells that were treated with amino-Nogo, an inhibitor of cell spreading.