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.
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
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.
Synthesis and Structure−Activity Relationships of New Benzodioxinic Lactones as Potential Anticancer Drugs
vitro. Relationships between chain nature and biological properties were sought. Lactones with a pentyl or hexyl substituent at C-11 are the most active ones. The introduction of a functional group at the side chain of C-11modified the potency; carboxylic acid and primary amine decreased the cytotoxicity, whereas a cyano group increased the activity. An extensive structure-activityrelationship study