Abstract
The natural hydrocarbazolone alkaloid (1R,2R,3R)-3-hydroxy-1,2-dimethyl-1,2,3,9-tetrahydro-4H-carbazol-4-one has been synthesized in a catalytic and enantioselective manner. A key hydrocarbazole derivative was constructed by the holmium-catalyzed Diels-Alder reaction of (silyloxyvinyl)indole as the diene. Total synthesis of the natural product clarified the ambiguity in the spectroscopic data reported for natural products.
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