Iminophosphorane-mediated synthesis of 1-acyl-β-carbolines: A new access to the alkaloids eudistomin T (cas 108335-05-3), S and xestomanzamine A of marine origin
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Add time:09/24/2019 Source:sciencedirect.com
New syntheses of the alkaloids eudistomin T and S are described. The key step, formation of the 1-phenylacetyl β- carboline, involves a tandem aza Wittig / electrocyclic ring closure process. The first synthesis of the alkaloid xestomanzamine A is achieved by coupling of a N-protected harmane, now available via aza Wittig / electrocyclic ring closure process, with a 5-lithioimidazole derivative.
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