Divergent synthetic studies towards bisabosqual A and fargenone B via an intramolecular SN2 reaction
Abstract
A divergent approach was developed towards the synthetic studies of bisabosqual A and fargenone B for the first time. The key oxygenated five or seven-membered ring in [6-5-6] and [6-7-6] tricyclic core of these two natural products could be constructed through a regioselective intramolecular SN2 reaction from the common advanced intermediate 11.