V. Beneteau et T. Besson, Synthesis of novel pentacyclic pyrrolothiazolobenzoquinolinones, analogs of natural marine alkaloids, TETRAHEDR L, 42(14), 2001, pp. 2673-2676
Multistep synthesis (12 steps) of new pentacyclic compounds, which are stru
cturally very close to natural marine alkaloids, was performed via a Diels-
Alder reaction between 4-methylene-5-(bromomethylene)-4,5-dihydrothiazole a
nd a protected dioxotryptamine, itself obtained from the commercially avail
able 2,5-dimethoxybenzaldehyde. (C) 2001 Elsevier Science Ltd. All rights r
eserved.