Recent advances in the transformations of different types of Stemona alkaloids

In recent years, researches on the total syntheses of Stemona alkaloids with different 5/7 bicyclic systems have attracted increasing attention, and the development momentum in this field has gradually changed from single molecule synthesis to unified syntheses of multiple molecules. Among them, the emergence of mutual transformations among Stemona alkaloids with different ring systems has indeed improved the synthetic efficiency toward diverse alkaloids. In continuation of our synthetic blueprint on Stemona alkaloids and to provide inspiration for discovering more efficient synthesis strategies, we summarized the recent advances in the transformations of different types of Stemona alkaloids and discussed the future of this domain.