Total Syntheses of Telisatin A, Telisatin B and Lettowianthine

Molecules

Surachai Nimgirawath¹ 

关键词: Alkaloid;    Dioxoaporphine;    Isoquinoline;    Radical cyclisation;    Synthesis;   

DOI  :  10.3390/molecules14030917

来源: mdpi

【 摘 要 】

Treatment of 1-(2-bromoarylmethyl)-3,4-dihydroisoquinolines with oxalyl chloride and triethylamine gave 1-(2-bromophenyl)-5,6-dihydropyrrolo[2,1-a]isoquinoline-2,3-dione derivatives, for example, 1-(2-bromophenyl)-5,6-dihydro-8,9-dimethoxypyrrolo[2,1-a]isoquinoline-2,3-dione. Radical cyclisation of these derivatives with tributyltin hydride and 1,1ʹ-azobis(cyclohexanecarbonitrile) afforded telisatin A, telisatin B and lettowianthine.

【 授权许可】

CC BY   
© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.