作者:E. James Gruver、Evans O. Onyango、Gordon W. Gribble
DOI:10.24820/ark.5550190.p010.414
日期:——
We have synthesized a novel ellipticine analogue, 7,8,9,10-tetrafluoroellipticine, in nine steps from hexafluorobenzene and ethyl cyanoacetate, via 1-(phenysulfonyl)-4,5,6,7-tetrafluoroindole. The key step is lithiation of the indole and subsequent coupling with 3,4-pyridinedicarboxylic acid anhydride to afford a ketolactam. Reaction of the lactam with methyllithium followed by reduction with sodium
我们用六氟苯和氰基乙酸乙酯通过 1-(苯磺酰基)-4,5,6,7-四氟吲哚分九步合成了一种新型玫瑰树碱类似物 7,8,9,10-四氟玫瑰树碱。关键步骤是吲哚锂化,随后与 3,4-吡啶二羧酸酐偶联得到酮内酰胺。内酰胺与甲基锂反应,然后用硼氢化钠还原,得到 7,8,9,10-四氟玫瑰树碱。