950839-11-9Relevant academic research and scientific papers
Enantio- and diastereoselective synthesis of (R,R)-β-methoxytyrosine
Cranfill, David C.,Lipton, Mark A.
, p. 3511 - 3513 (2007)
The nonproteinogenic amino acid (2R,3R)-β-methoxytyrosine, a constituent of several cyclic depsipeptide natural products, was synthesized in protected form (8) from a readily available cinnamate ester in four steps and 62% overall yield with a greater tha
Stellatolides, a new cyclodepsipeptide family from the sponge ecionemia acervus: Isolation, solid-phase total synthesis, and full structural assignment of stellatolide a
Martin, Maria Jesus,Rodriguez-Acebes, Raquel,Garcia-Ramos, Yésica,Martinez, Valentin,Murcia, Carmen,Digon, Isabel,Marco, Isabel,Pelay-Gimeno, Marta,Fernández, Rogelio,Reyes, Fernando,Francesch, Andrés M.,Munt, Simon,Tulla-Puche, Judit,Albericio, Fernando,Cuevas, Carmen
, p. 6754 - 6762 (2014/05/20)
The marine environment is a rich source of metabolites with potential therapeutic properties and applications for humans. Here we describe the first isolation, solid-phase total synthesis, and full structural assignment of a new class of cyclodepsipeptides from the Madagascan sponge Ecionemia acervus that shows in vitro cytotoxic activities at submicromolar concentrations. Seven structures belonging to a new family of compounds, given the general name stellatolides, were characterized. The sequence and stereochemistry of all the amino acids in these molecules were established by a combination of spectroscopic analysis, chemical degradation, and derivatization studies. Furthermore, the complete structure of stellatolide A was confirmed by an efficient solid-phase method for the first total synthesis and the full structural assignment of this molecule, including the asymmetric synthesis of the unique B-hydroxy acid moiety (Z)-3-hydroxy-6,8-dimethylnon-4-enoic acid.
Concise synthesis of all stereoisomers of β-methoxytyrosine and determination of the absolute configuration of the residue in callipeltin A
Zampella, Angela,D'Orsi, Rosa,Sepe, Valentine,Casapullo, Agostino,Monti, Maria Chiara,D'Auria, Maria Valeria
, p. 3585 - 3588 (2007/10/03)
(Chemical Equation Presented) All stereoisomers of β-methoxytyrosine (β-OMeTyr), a stereo-undefined component of callipeltin A, were synthesized from L- and D-tyrosine. The stereochemistry of β-OMeTyr in callipeltin A was determined to be 2R,3R by an oxidative procedure and Marfey's analysis.
