期刊
SYNTHESIS-STUTTGART
卷 54, 期 2, 页码 334-340出版社
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0037-1610784
关键词
C-H activation; indole; arylation; homogeneous catalysis; palladium; copper; organic synthesis; pharmaceuticals
资金
- European Union [NMBP-01-2016, 720996]
- KU Leuven
- Research Foundation Flanders (FWO) [G0781118 N, G0D0518 N]
- Hercules Foundation of the Flemish Government [20100225-7]
This study reports a regiospecific C-H arylation of a highly functionalized azepino[5,3,4-cd]indole scaffold lacking directing groups via Pd(II) and Cu(II) co-catalysis, which offers a promising method to surpass the limitations of traditional protecting groups or metal additives in late-stage C-H activation reactions. The direct C-H coupling was demonstrated in the convergent synthesis of the FDA approved anticancer drug rucaparib.
The C-H arylation of indoles holds the promise to shorten synthetic routes in the production of pharmaceuticals. However, late-stage C-H activation reactions often rely on the presence of protecting groups or stoichiometric metal additives. The regiospecific C-H arylation of a highly functionalized azepino[5,3,4-cd]indole scaffold lacking directing groups via Pd(II) and Cu(II) co-catalysis is reported. The direct C-H coupling was demonstrated in the convergent synthesis of rucaparib, an FDA approved anticancer drug.
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