(±)-Minfiensine (1) was synthesized in 10 steps in 26% overall yield with the 1,2,3,4-tetrahydro-9a,4a-iminoethanocarbazole core constructed through a [3+2] cycloaddition reaction between indole and an azaoxyallylic cation.

中文翻译：

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通过正式的[3 + 2]环加成反应全合成（±）-Minfiensine

（±）-Minfiensine（1）以10个步骤合成，总产率为26％，其中的1,2,3,4-四氢-9a，4a-亚氨基乙基氨基咔唑核是通过吲哚和环戊二烯之间的[3 + 2]环加成反应构建的氮氧基烯丙基阳离子。