A Stereospecific Transannular Diels-Alder Approach to the [6.6.7] Tricyclic Skeleton Related to Aphidicolin and Scopadulan Natural Products - Hall, Dennis G; Caillé, Alain-Sébastien; Drouin, Marc; Lamothe, Serge; Müller, Renate; Deslongchamps, Pierre (Synthesis, 1995)