Jd. Winkler et al., A HIGHLY STEREOSELECTIVE APPROACH TO THE SYNTHESIS OF THE MANZAMINE ALKALOIDS VIA THE INTRAMOLECULAR VINYLOGOUS AMIDE PHOTOCYCLOADDITION, Tetrahedron letters, 34(41), 1993, pp. 6509-6512
The stereoselective construction of the tetracyclic core of the manzam
ine alkaloids via the intramolecular vinylogous amide photocycloadditi
on/retro-Mannich fragmentation/Mannich closure sequence using an eight
-membered ring template is described.