reported to inhibit cell division of fertilized sea urchin eggs. The synthesis of 1 was achieved by a Ring A→Ring AC→Ring ABC approach employing 3-methyl-4-(trimethylsilyl)furan (2) as a precursor. A Suzuki coupling reaction and a Lewis acid mediated Friedel-Crafts cyclization were the other key steps in the construction of the ring systems. In other preliminary model studies, two furan-containing 5,7,5-fused
Echinofuran(1)于1992年分离出来,据报道可抑制受精海胆卵的细胞分裂。1的合成通过使用3-甲基-4-(三甲基甲
硅烷基)
呋喃(2)作为前体的A环→AC环→ABC环的方法来实现。Suzuki偶联反应和
路易斯酸介导的Friedel-Crafts环化反应是构建环系统的其他关键步骤。在其他初步模型研究中,还实现了两个含
呋喃的5,7,5-稠合
三环分子。