Various structural types of nogalamycin congeners and their partial structures, which had been previously synthesized in the course of our synthetic studies on the total syntheses or were originally produced by employing the explored synthetic scheme, were subjected to in vitro cytotoxicity and in vivo antitumor activity assay against P388 munne leukemia. These studies obviously disclosed novel aspects
Regiospecific friedel-crafts acylationof 6-alkoxy-2-pyrones: Preparation of substituted aromatics and anthraquinones.
作者:Michael E. Jung、Richard W. Brown
DOI:10.1016/s0040-4039(01)81903-1
日期:1981.1
Friedel-Crafts acylation of 6-alkoxy-2-pyrones gives high yields of the 5-acyl-2-pyrones which undergo regioselective cycloaddition with various dienophiles.
Synthetic studies towards novel xanthone antibiotics, cervinomycins
作者:Goverdhan Mehta、Yenamandra Venkateswarlu
DOI:10.1039/c39880001200
日期:——
The xanthone (EFG) and isoquinolone (BC) segments of cervinomycins have been synthesised, xanthone (5b) has been naphthoannulated to the pentacyclic CDEFG portion of the antibiotic.