Several new polyhydroxylated alkaloids including pyrrolidines with a long side chain and 3-(hydroxymethyl) indolizidines were prepared from a common nitrone easily obtained from d-arabinose. In addition, a total synthesis of hyacinthacine A2 has been achieved in five steps and 67.7% overall yield starting from the same d-arabino-derived nitrone. All synthesized compounds have a common structural feature
从容易从d-
阿拉伯糖获得的常见的硝酮制备了几种新的多羟基化
生物碱,包括具有长侧链的
吡咯烷和3-(羟甲基)
吲哚并
吡啶。此外,hyacinthacine A的全合成2已在五个步骤和67.7%的总收率从相同的起始实现d -
阿拉伯糖衍生的硝酮。所有合成的化合物具有由与
吡咯烷环的一个共同的结构特征d -阿拉伯配置。