In an attempt to circumvent this abnormal rearrangement, (1 + 2 -> 3), we are currently investigating the Barton-Zard reaction with 7 and 8. Also, we are close to completing a synthesis of the novel 2-nitro-(phenylsulfonyl)indole (9). These three substrates should provide good leads into the important pyrrolo[3,4-b]indole ring system via the Barton-Zard reaction.



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