The invention provides methods for the synthesis of eribulin or a pharmaceutically acceptable salt thereof (e.g., eribulin mesylate) through a macrocyclization strategy. The macrocyclization strategy of the present invention involves subjecting a non-macrocyclic intermediate to a carbon-carbon bond-forming reaction (e.g., an olefination reaction (e.g., Horner-Wadsworth-Emmons olefination), Dieckmann reaction, catalytic Ring-Closing Olefin Metathesis, or Nozaki-Hiyama-Kishi reaction) to afford a macrocyclic intermediate. The invention also provides compounds useful as intermediates in the synthesis of eribulin or a pharmaceutically acceptable salt thereof and methods for preparing the same.
该发明提供了一种通过大环化策略合成厄立宾或其药用可接受盐(例如,厄立宾
甲磺酸盐)的方法。本发明的大环化策略涉及将非大环
中间体经过
碳-
碳键形成反应(例如,
烯化反应(例如,Horner-Wadsworth-Emmons
烯化反应)、迪克曼反应、催化环闭合
烯烃交换反应,或Nozaki-Hiyama-Kishi反应)以获得大环
中间体。该发明还提供了在合成厄立宾或其药用可接受盐时作为
中间体有用的化合物以及制备这些化合物的方法。