Eric Tisdale - Regioselective synthesis of the tricyclic core of lateriflorone.

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  Tisdale, E. J.; Li, H.; Vong, B. G.; Kim, S. H.; Theodorakis, E.   A. Regioselective synthesis of the tricyclic core of   lateriflorone. Org. Lett. 2003,   5, 1491-1494.


  Two different routes to the tricyclic core of   Garcinia-derived natural products are described. The   first approach is based on a tandem Claisen/Diels-Alder   rearrangement and delivers the desired lactone. The second   approach, employing a Wessely oxidation/Diels-Alder protocol,   leads to the same caged heterocycle, albeit with modified   constitution.

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