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ChemInform Abstract: Synthesis of 2-Amino-2-methyl-4-phosphonobutanoic Acids by Conjugate Addition of Lithiated Bislactim Ether Derived from cyclo[Ala-D-Val] to Vinylphosphonates.
First published: 09 June 2010
Abstract
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ChemInform Abstract
Diastereoselective conjugate addition of lithiated Schoellkopf′s bislactim ether (I) to vinylphosphonates (II) and (V) provides optically pure MAP4 analogues such as (VIII) and (IX) after separation and acidic hydrolysis.
