positions of chlorine atoms. They are isolated from sea sponges and nudibranchs. In this work, a convenient synthetic method leading to a new phorbazole and its derivatives is developed. This synthesis of synthetic phorbazole G and its derivatives is achieved in seven steps in good overall yields of 26–52%. It involves formation of the pyrrole-oxazole skeleton followed by chlorination. The pyrrole-oxazole
佛巴唑是含
吡咯、
恶唑和
苯酚环单元的
氯化海洋
生物碱,
氯原子的数量和位置不同。它们与海绵和裸鳃类动物隔离。在这项工作中,开发了一种方便的合成方法,可产生一种新的佛巴唑及其衍
生物。这种合成佛巴唑 G 及其衍
生物的合成分七个步骤完成,总产率为 26-52%。它涉及形成
吡咯-
恶唑骨架,然后进行
氯化。
吡咯-
恶唑骨架由
吡咯和取代的
苯乙酮合成,关键步骤涉及酰胺中间体环化脱
水得到受保护的
恶唑,然后
水解。