Toward a total synthesis of stigmatellin; obtention of an advanced fragment from gallic acid
作者:L Domon、D Uguen
DOI:10.1016/s0040-4039(00)00812-1
日期:2000.7
was prepared by starting from gallic acid 7a, afforded the chromone 6c, whose Swern oxidation, followed by condensation of the resulting aldehyde 6a with the trienyl lithium derivative 13b and methyl iodide, furnished products isomeric with, but not strictly identical to, an authentic sample of O-benzyl stigmatellin 1c.
用碱然后用酸处理酯3,该酯3由没食子酸7a开始制备,得到色酮6c,其色变氧化,然后将所得醛6a与三烯基锂衍生物13b和碘代甲烷缩合。,提供的产品与O-苄基柱头蛋白1c的真实样品同分异构,但并不完全相同。