Qz. Ding et al., SYNTHESIS OF A FURANO[4,3,2-DE]QUINOLINE NUCLEUS - A DERIVATIVE OF THE DISCORHABDIN ALKALOIDS, Heterocyclic communications, 3(6), 1997, pp. 489-492
A novel method of synthesis of furanoquinoline nucleus structurally re
lated to discorhabdin alkaloids from pyrogallol is developed. Proof of
the position of the key nitration step was obtained by x-ray diffract
ion analysis of an intermediate (4) under bar.