Synthetic Studies on Natural Isocoumarins and Isocarbostyril Derivatives Having an Alkyl Substituent at the 3-Position: Total Synthesis of Scoparines A and B, and Ruprechstyril
作者:Toshio Honda、Marcellino Rudyanto、Koichi Kobayashi
DOI:10.3987/com-08-s(d)40
日期:——
Two isocoumarins, scoparines A and B, having n-propyl group at the 3-position, and a new isocarbostynl, ruprechstynl, beanng n-pentyl substituent at the 3-position were synthesized via Sonogashira coupling of the corresponding aromatic halides and alkynes, followed by regioselective 6-endo-dig cyclization.
通过相应的芳族卤化物和炔烃的 Sonogashira 偶联,合成了两种异香豆素,东芝碱 A 和 B,在 3 位具有正丙基,并在 3 位具有新的异卡波炔基、ruprechsynl、beanng 正戊基取代基,然后通过区域选择性 6-endo-dig 环化。