Structures, Biological Activities, and Total Syntheses of 13-Hydroxy- and 13-Acetoxy-14-nordehydrocacalohastine, Novel Modified Furanoeremophilane-Type Sesquiterpenes from <i>Trichilia cuneata</i>
作者:Matsumi Doe、Taku Shibue、Hiroyuki Haraguchi、Yoshiki Morimoto
DOI:10.1021/ol050346k
日期:2005.4.1
13-Hydroxy-14-nordehydrocacalohastine (2) and 13-acetoxy-14-nordehydrocacalohastine (3), two novel modified furanoeremophilane-type sesquiterpenes isolated from Trichilia cuneata, showed inhibitory activities for membrane lipid peroxidation in mitochondria and microsomes. The first, highly convergent total syntheses of new compounds 2 and 3 have also been achieved via a palladium-mediated three-component
[反应:参见文本] 13-羟基-14-去氢卡卡他汀(2)和13-乙酰氧基-14-去氢卡卡他汀(3),这两种新颖的从呋喃菊中分离得到的呋喃戊二烯型倍半萜烯,对线粒体和膜的膜脂质过氧化具有抑制作用。微粒体。还通过2-碘代甲苯(7),1-戊烯-4-yn-3-ol(8),和乙氧基亚甲基丙二酸二乙酯(9)。