title: Concise synthesis of all stereoisomers of beta-methoxytyrosine and determination of the absolute configuration of the residue in callipeltin A.
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]
authors.affiliation: Dipartimento di Chimica delle Sostanze Naturali, Università degli Studi di Napoli Federico II, via D. Montesano 49, 80131 Naples, Italy.
authors.forename: Angela
authors.initials: A
authors.lastname: Zampella
authors.forename: Rosa
authors.initials: R
authors.lastname: D'Orsi
authors.forename: Valentina
authors.initials: V
authors.lastname: Sepe
authors.forename: Agostino
authors.initials: A
authors.lastname: Casapullo
authors.forename: Maria Chiara
authors.initials: MC
authors.lastname: Monti
authors.forename: Maria Valeria
authors.initials: MV
authors.lastname: D'Auria
mesh_terms: D000818:Animals; D047630:Depsipeptides / Q000737:chemistry*; D011161:Porifera / Q000737:chemistry; D013237:Stereoisomerism; D014443:Tyrosine / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry
chemical_list: D047630:Depsipeptides; C418139:callipeltin A; D014443:Tyrosine; C008404:3-methoxytyrosine