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Three approaches towards the synthesis of the 1,7-dihydropyrano[2,3-g]indole ring system of the stephacidins, paraherquamides and norgeamides have been investigated. The first involves a tandem nitrene insertion/aromatic Claisen rearrangement. The second consists of a more conventional approach from commercially available 6-benzyloxyindole. The third approach is a revised synthesis of the 2-prenylated...
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