Inter- and Intramolecular Hetero-Diels-Alder Reactions; Part 50: Domino Reactions in Organic Chemistry: The Knoevenagel-hetero-Diels-Alder-Hydrogenation Sequence for the Biomimetic Synthesis of Indole Alkaloids via Strictosidine Analogues - Tietze, Lutz F; Bachmann, Jürgen; Wichmann, Jürgen; Burkhardt, Olaf (Synthesis, 1994)