Breukink et al., Recueil des Travaux Chimiques des Pays-Bas, 1957, vol. 76, p. 401,406
作者:Breukink et al.
DOI:——
日期:——
DABCO-catalyzed one-pot three component synthesis of dihydropyrano[3,2-c]chromene substituted quinazolines and their evaluation towards anticancer activity
A facile DABCO promoted one-potthreecomponentsynthesis of a new series of C-C linked bis-heterocycle containing dihydropyrano[c]chromene as highly fused oxa-heteryl group at C-2 position of quinazoline was developed. Quinazoline-2-carbaldehyde, substituted 4-hydroxycoumarin and ethyl cyanoacetate were used as key components in the Knoevenagel-Michael addition reaction to get the titled compounds