Diels-Alder Reactions of Furo [3,4-b] 1,4-benzodioxins: An Efficient Approach to Substituted Dibenzo [b,e][1,4] Dioxins
摘要:
In view of their potential biological properties, different substituted dibenzo [b,e][1,4] dioxins have been synthesized using Diels-Alder reactions. This required the preparation of furobenzodioxins and further dehydration of the bicyclo-adducts of the cycloaddition.
Diels-Alder Reactions of Furo [3,4-<i>b</i>] 1,4-benzodioxins: An Efficient Approach to Substituted Dibenzo [<i>b,e</i>][1,4] Dioxins
作者:N. Ruiz、C. Buon、M. D. Pujol、G. Guillaumet、G. Coudert
DOI:10.1080/00397919608003564
日期:1996.6
In view of their potential biological properties, different substituted dibenzo [b,e][1,4] dioxins have been synthesized using Diels-Alder reactions. This required the preparation of furobenzodioxins and further dehydration of the bicyclo-adducts of the cycloaddition.
Multigram scale synthesis of polycyclic lactones and evaluation of antitumor and other biological properties
An efficient four-step synthesis of tetracyclic lactones from 1,4-benzodioxine-2-carboxylic acid was developed. Ellipticine derivatives exhibit antitumor activity however only a few derivatives without carbazole subunit have been studied to date. Herein, several tetracyclic lactones were synthesized and biologically evaluated. Several compounds (2a, 3a, 4a and 5a) were found to be inhibitors of the