作者:Ulrich Koert、Alexander Arlt
DOI:10.1055/s-0029-1218647
日期:2010.3
(±)-cephalosol is reported. Key steps are the acylation of a silyl enol ether with monomethyl oxalyl chloride and the subsequent acid-mediated ring closure to the isocoumarin structure. A chemoselective allylation and the conversion of the olefin into a methyl acetate were applied to install the γ-lactone moiety. acylation - cephalosol - chemoselectivity - isocoumarins - lactones
报道了一种有效的全合成(±)-脑
磷脂。关键步骤是将甲
硅烷基烯醇醚与单甲基
草酰氯酰化,然后将酸介导的闭环成异
香豆素结构。应用
化学选择性烯丙基化和烯烃转化为
乙酸甲酯以安装γ-内酯部分。 酰化-
头孢菌素-
化学选择性-异
香豆素-内酯