Toward new camptothecins. Part 4: On the reactivity of nitro and amino precursors of aza analogs of 5-methoxycarbonyl camptothecin
作者:Laurent Gavara、Benoît Rigo、Daniel Couturier、Laurence Goossens、Jean-Pierre Hénichart
DOI:10.1016/j.tet.2007.06.083
日期:2007.9
In the context of formation of new aza analogs of camptothecin, nitration then reduction of condensed pyridones was realized, leading to new derivatives of pyrrolo-aza-indoles. Treatment of these compounds with hydrobromic acid led to new structure rearrangements while oxidation of the α-position was unsuccessful. Mechanisms of formation of the new products are discussed.
在喜树碱的新氮杂类似物形成的背景下,实现了硝化然后还原缩合的吡啶酮,从而导致了吡咯并-氮杂-吲哚的新衍生物。用氢溴酸处理这些化合物导致新的结构重排,而α-位的氧化不成功。讨论了新产品的形成机理。