Abstract
The first asymmetric total synthesis of the Lycopodium alkaloid senepodine F, which contains a decahydroquinoline ring (AB-ring) and a quinolizidine ring (CD-ring) connected by a methylene tether, has been achieved. The key steps of this synthesis include an organocatalytic asymmetric Diels-Alder reaction, a diastereoselective intramolecular aza-Michael reaction, and an intramolecular SN2 cyclization to construct multisubstituted nitrogen-containing heterocycles. In addition, our total synthesis led to the stereochemical reassignment on the decahydroquinoline ring of senepodine F.
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