Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 3, Pages 879-882Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201409827
Keywords
cyclization; epimerization; oxidative coupling; pyrroloindoles; total synthesis
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Funding
- NSFC [21202144, 21472167]
- New Teacher's Fund for Doctor Stations
- Ministry of Education [20120101120087]
- Fundamental Research Funds for the Central Universities [2014QNA3009]
- Zhejiang University
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A concise total synthesis of rac-alsmaphorazine D has been described for the first time. The efficient synthetic strategy features four key transformations: 1) a catalytic intramolecular oxidative cyclization for the delta-lactamindole backbone; 2) an oxidative cyclic aminal formation for the hexahydropyrrolo[2,3-b]pyrrole framework; 3) a transannular radical cyclization for the construction of the diazabicyclo-[3.3.1]nonane structure; and 4) a one-pot desilylation/double epimerization reaction that affirms the relative stereochemistry.
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