or two hydroxyl groups and one positively charged side chain at different positions of the aromatic ring system (compounds 1‐5 in Chart 1). These derivatives resemble the anticanceragents mitoxantrone and ametantrone. The synthesis started from dihydroxy‐ or amino‐hydroxy‐9,10‐anthracenediones, which were converted into the nitro‐derivatives. After reduction to the corresponding amines and acylation
anthracenedione derivatives has been synthesized, which bear two charged side chains at different positions of the fused ring system. Hydroxyl groups at positions 1, 5 and/or 8 may also be present. These compounds resemble the well known antitumor drug mitoxantrone. The synthetic route included preparation of nitro‐derivatives, which were reduced to the corresponding amino‐derivatives, acylated with haloacyl
An Improved Procedure for the Preparation of 4,5-Dinitrochrysazin
作者:Pong Chang
DOI:10.1080/00397919408020767
日期:1994.4
Abstract Pure 4,5-dinitrochrysazin was prepared by selective nitration of chrysazin, followed by solvent extraction of impurities. This method is suitable for scaling without need of chromatography, and represents a significant improvement over literature methods.