Synthesis of purpurasol, a highly oxygenated coumarin from Pterocaulon purpurascens
作者:Dominick Maes、Kris Van Syngel、Silvia Debenedetti、Norbert De Kimpe
DOI:10.1016/j.tet.2006.02.055
日期:2006.5
Purpurasol 1, a 6,7,8-trioxygenated coumarin, isolated from Pterocaulon purpurascens (Asteraceae) and Haplophyllum obtusifolium (Rutaceae), was synthesized for the first time by a three-step synthesis starting from the natural coumarin fraxetin. This synthesis confirmed unambiguously the structure of purpurasol 1 and obtusifol.
Purpurasol 1,一个-6,7,8- trioxygenated香豆素,从分离翼茎草属紫丝(菊科)和Haplophyllum obtusifolium(芸香科),是首次通过三步合成从天然香豆素fraxetin开始合成。该合成明确地确认了紫purasol 1和obtusifol的结构。