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Título: | Practical access to the proline analogs (S,S,S)- and (R,R,R)-2- methyloctahydroindole-2-carboxylic acids by HPLC enantioseparation |
Autor: | Sayago, Francisco J. CSIC ORCID; Pueyo, María J.; Calaza, M. Isabel CSIC; Jiménez, Ana I. CSIC ORCID; Cativiela, Carlos CSIC ORCID | Fecha de publicación: | 2011 | Editor: | Wiley-Blackwell | Citación: | Chirality 23: 507-513 (2011) | Resumen: | An efficient methodology for the preparation of the α- tetrasubstituted proline analog (S,S,S)-2-methyloctahydroindole-2-carboxylic acid, (S,S,S)-(αMe)Oic, and its enantiomer, (R,R,R)-(αMe)Oic, has been developed. Starting from easily available substrates and through simple transformations, a racemic precursor has been synthesized in excellent yield and further subjected to HPLC resolution using a cellulose-derived chiral stationary phase. Specifically, a semipreparative (250 mm × 20 mm ID) Chiralpak® IC column has allowed the efficient resolution of more than 4 g of racemate using a mixture of n-hexane/tert-butyl methyl ether/2-propanol as the eluent. Multigram quantities of the target amino acids have been isolated in enantiomerically pure form and suitably protected for incorporation into peptides. © 2011 Wiley-Liss, Inc. | URI: | http://hdl.handle.net/10261/53693 | DOI: | 10.1002/chir.20952 | ISSN: | 0899-0042 | Identificadores: | doi: 10.1002/chir.20952 e-issn: 1520-636X |
Aparece en las colecciones: | (ICMA) Artículos |
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Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Practical Access to the Proline Analogues.pdf | 258,05 kB | Adobe PDF | Visualizar/Abrir |
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