Zobrazeno 1 - 10
of 55
pro vyhledávání: '"André A. Pavia"'
Autor:
Isabelle Parrot, Jean Martinez, Olivier P. Thomas, Jacqueline Smadja, André A. Pavia, Jimmy Selambarom
Publikováno v:
International Journal of Peptide Research and Therapeutics. 11:267-270
In view of the synthetic and biological interest of pseudoproline (ΨR,RPro)-containing peptides, we have investigated a new strategy to these target compounds, taking into account the existence of the well-known ring–chain tautomerism occurring in
Publikováno v:
Tetrahedron. 58:4439-4444
We have shown that condensation of l -cysteine methyl ester ( 8 ) and l -threonine methyl ester ( 11 ) with formaldehyde provides a convenient and efficient access to novel heterocyclic 2:3 adducts. Depending on the amino acid, the condensation leads
Publikováno v:
Tetrahedron
Tetrahedron, Elsevier, 2001, 57, pp.9979-9987. ⟨10.1016/S0040-4020(01)01022-5⟩
Tetrahedron, Elsevier, 2001, 57, pp.9979-9987. ⟨10.1016/S0040-4020(01)01022-5⟩
Biocompatible multifunctional ligands with telomeric structure containing 2-nitroimidazole as affinity marker and tosylate as precursor of 123I radioactive tracer were prepared. Telomerization of appropriate monomers derived from tris(hydroxymethyl)-
Publikováno v:
Tetrahedron Letters. 41:2891-2894
The benzylation of aliphatic alcohols with various benzylic alcohols has been achieved in the presence of BiBr3 under mild conditions. 2-Phenylpropan-2-ol proved to be the most efficient and can be considered as a novel protecting group.
Publikováno v:
Journal of Plant Research. 110:347-356
The changes in α-amylase activity and in starch and free sugar content were investigated in correlation with lipid mobilization inHelianthus annuus during the first 15 days of seedling growth in discontinuous light and in darkness. Throughout the se
Autor:
Jean-Louis Montero, Jean-Pierre Roque, André A. Pavia, M. Kamal, Jean-Yves Winum, Alain Leydet
Publikováno v:
Carbohydrate Research. 297:175-180
A new halogenation procedure for peracetylated glycopyranosides is reported, using bismuth(III) halides and halogenosilanes under very mild conditions. © 1997 Elsevier Science Ltd.
Publikováno v:
Tetrahedron Letters. 46:615-617
Reaction of acyl chlorides or acid anhydrides with isomeric 2:3 adducts derived from condensation of l -serine ( 1a ), l -threonine ( 1b ) and l -cysteine ( 1c ) methyl esters with formaldehyde afforded N-acyl-pseudoprolines 7–19 in various yields.
Autor:
Bernard Boyer, André A. Pavia, Jean-Pierre Roque, Véronique Barragan, Alain Leydet, Bernard Pucci
Publikováno v:
Macromolecular Chemistry and Physics. 196:3877-3890
Three methyl 11-(N-acryloyl-N-alkylamino)undecanoates were synthesized from acryloyl chloride and amino- or alkylaminoundecanoic acid esters. These compounds were telomerized in the presence of 1-dodecanethiol as telogen to yield telomers with molecu
Autor:
Jean G. Riess, Tadek Gulik-Krzywicki, André A. Pavia, Bernard Pucci, Leila Zarif, Camille Atta Guedj
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 84:107-112
New amphiphilic agents with single- or double-chain hydrogenated and/or fluorinated hydrophobic tails have been synthesized from natural disaccharides (lactose, maltose). The sugar moiety is intended to allow specific targeting of cell membrane sugar
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 3:161-164
We have investigated the behaviour of a new class of non-ionic telomeric surfactants termed H- TAC derived from tris-(hydroxymethyl)-aminomethane, with respect to the solubilization of subcellular proteins of rat hepatocytes and membrane antigens fro