Total Synthesis of Sieboldine A.
J Org Chem
; 85(18): 11968-11974, 2020 09 18.
Article
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| ID: mdl-32803967
ABSTRACT
Previously, we have finished the total synthesis of lycojaponicumin A (2) via development of an efficient synthetic strategy using semipinacol rearrangement as a key step. In order to further demonstrate the generality of this synthetic route, herein, we report the total synthesis of another fawcettimine-type alkaloid sieboldine A (1) from the same intermediate, which possesses an A/B/D tricyclic ring system and vicinal quaternary centers of 1. The synthesis features late-stage site-selective redox reactions, Schmidt glycosylation cyclization, and highly selective transformations.
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MEDLINE
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J Org Chem
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2020
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Article