Zobrazeno 1 - 10
of 18
pro vyhledávání: '"S. Bouifraden"'
Publikováno v:
Tetrahedron: Asymmetry. 8:949-955
Asymmetric synthesis of various glycosyl-α-aminoacids is described. The approach involves the diastereoselective condensation of glycine enolates on the carbonyl in position 3 of the suitably protected α-D-ribohexofuranos-3-ulose.
Publikováno v:
Synthetic Communications. 23:2559-2562
We report here the diastereoselective synthesis of (2S, 3′R)-(α-D-allofuranos-3-yl) t-butyl glycinate by the condensation of a glycine enolate on the carbonyl function of α-D-ribohexofuranos-3-ulose 2.
Publikováno v:
ChemInform. 25
Publikováno v:
ChemInform. 28
Publikováno v:
ChemInform. 28
The stereochemistry of (3R, 2′S)-2′-N-dibenzylamino-1,2:5,6-di-O-isopropylidene-α-d-allofuranos-3-spiro-3′-propano-3-lactone, C28H33NO7, has been established. The three five-membered rings adopt envelope conformations. The spiropropiolactone r
Publikováno v:
ChemInform. 29
Autor:
S. Bouifraden, C. Drouot, M. El Hadrami, F. Guenoun, L. Lecointe, N. Mai, M. Paris, C. Pothion, M. Sadoune, B. Sauvagnat, et al. et al.
Publikováno v:
ChemInform. 30
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 53:457-459
The stereochemistry of (3R, 2′S)-2′-N-dibenzylamino-1,2:5,6-di-O-isopropylidene-α-d-allofuranos-3-spiro-3′-propano-3-lactone, C28H33NO7, has been established. The three five-membered rings adopt envelope conformations. The spiropropiolactone r
Autor:
N. Ittobane, Jean-Pierre Lavergne, Ph. Viallefont, S. Bouifraden, Angèle Chiaroni, Claude Riche
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 50:110-112
The condensation reaction of the enolate of tert-butyl dibenzylaminoacetate with the carbonyl of 1,2:5,6-di-O-isopropylidene-α-D-ribo-hexofuranos-3-ulose is diastereoselective and leads to the title compound with absolute stereochemistry 2S,3'R. The
Autor:
Jean-Alain Fehrentz, N. Mai, J.-L. Aubagnac, Bérengère Sauvagnat, Valérie Rolland, Catherine Pothion, M. L. Roumestant, José Luis Martínez, M. Sadoune, Monique Calmes, J. Daunis, Ph. Viallefont, Y. Vidal, Frédéric Lamaty, Muriel Amblard, René Lazaro, Marielle Paris, Jean-Pierre Lavergne, C. Drouot, Farhate Guenoun, S. Bouifraden, M. El Hadrami, L. Lecointe, P. Chevallet, Christine Enjalbal
Publikováno v:
Amino Acids
Amino Acids, Springer Verlag, 1999, 16, pp.345-379
HAL
Amino Acids, Springer Verlag, 1999, 16, pp.345-379
HAL
Some of the chemistry of amino acids going on in our laboratory (Laboratoire des Amino acides Peptides et Protéines) is described as well as some mass spectrometry methodology for their characterization particularly on solid supports. Several aspect