The total syntheses of the pyranonaphthoquinone natural products dehydroherbarin, (+)-astropaquinone B and (+)-astropaquinone C are described. A late stage oxidation strategy employed for the synthesis of the astropaquinones was not amenable to the conversion of dehydroherbarin into the ascomycones. The syntheses of astropaquinones B and C reported herein constitute the first total syntheses and their absolute stereochemistry was determined to be (1R,3S).
本文描述了脱氢草霉素(dehydroherbarin)、(+)-星棘醌B((+)-astropaquinone B)和(+)-星棘醌C((+)-astropaquinone C)三种
吡喃
萘醌
天然产物分子的全合成。在合成星棘醌时使用的后期氧化策略,不适用于将脱氢草霉素转化为囊霉醌(ascomycones)。本文报道的星棘醌B和C的合成是它们的首次全合成,且它们的绝对构型被确定为(1R,3S)。