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Organic letters

Concise synthesis of all stereoisomers of beta-methoxytyrosine and determination of the absolute configuration of the residue in callipeltin A.


PMID 16048348

Abstract

All stereoisomers of beta-methoxytyrosine (beta-OMeTyr), a stereo-undefined component of callipeltin A, were synthesized from L- and D-tyrosine. The stereochemistry of beta-OMeTyr in callipeltin A was determined to be 2R,3R by an oxidative procedure and Marfey's analysis. [structure: see text]

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