作者:Jun Mori、Makoto Iwashima、Makoto Takeuchi、Haruo Saito
DOI:10.1248/cpb.54.391
日期:——
An efficient synthesis of the antiviral and antioxidative chromene (1) was achieved. A small amount of chromene 1 could be derived from plastoquinones 2 and 3, the major constituents of the brown alga, Sargassum micracanthum. By the following synthetic scheme involving its application, many kinds of analogs can be synthesized for evaluation of their biological activity and mechanistic study. The total
实现了抗病毒和抗氧化色烯 (1) 的有效合成。少量色烯 1 可能源自质体醌 2 和 3,它们是褐藻马尾藻的主要成分。通过以下涉及其应用的合成方案,可以合成多种类似物,用于评价其生物活性和机理研究。 1的全合成以乙酸香叶酯和受保护的2-溴-6-甲基氢醌为起始原料,采用Sharpless不对称二羟基化引入末端二醇体系和碱催化σ重排构建色烯骨架作为关键步骤。通过该合成再次确认了 C-11' 处的立体化学。