The substituted tricyclic pyrano[2,3-e]isoindolin-3-ones 2 and 3, as the core structure of stachybotrin A, B, and C (1a–c), have been regioselectively synthesized for the first time by a short route which involved Mannich reaction and Claisen rearrangement.
取代的
三环吡喃并[2,3-e]
异吲哚啉-3-酮2和3,作为星状孢菌素A、B和C(1a-c)的核心结构,首次通过一条简短的路径选择性合成,该路径涉及曼尼希反应和克莱森重排。