Large Scale Synthesis of the High Quality Indoloquinone Antitumor Agent EO 9 via [Bis(trifluoroacetoxy)iodo]benzene Oxidation of 4-Aminoindole
作者:Masahiko Kinugawa、Yoshiaki Masuda、Hitoshi Arai、Hiroshi Nishikawa、Takehiro Ogasa、Shinji Tomioka、Masaji Kasai
DOI:10.1055/s-1996-4270
日期:1996.5
A convenient large scale preparation of the indoloquinone antitumor agent EO 9 (1) has been developed. The hazardous reagent, Fremy’s salt, was replaced by a safer one, [bis(trifluoroacetoxy)iodo]benzene, for oxidation of the 4-aminoindole 3 to the corresponding indoloquinone 4, and high quality 1 was easily obtained by choosing acetonitrile as the reaction solvent for substitution of the methoxy group with ethylenimine to introduce the aziridinyl group into EO 7 (6).
我们开发出了一种方便的大规模制备吲哚醌类抗肿瘤药 EO 9 (1)的方法。在将 4-氨基吲哚 3 氧化为相应的吲哚醌 4 时,用较安全的[双(三氟乙酰氧基)碘]苯取代了危险试剂弗雷米盐,并选择乙腈作为反应溶剂,用乙烯亚胺取代甲氧基,将氮丙啶基引入 EO 7 (6),从而轻松获得了高质量的 1。