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Mostrando ítems 1-10 de 14
Artículo
A Practical Synthesis of Enantiopure 4,5-Dihydroisoxazole-5-carboxylic Acids
(2005)
The 1,3-dipolar cycloaddition of a variety of aromatic and aliphatic nitrile oxides to 2,5-trans-2,5-diphenylpyrrolidine derived acrylamide and cinnamamide efficiently affords the corresponding 4,5-dihydroisoxazole-5- ...
Artículo
NolR Regulates Diverse Symbiotic Signals of Sinorhizobium fredii HH103
(The American Phytopathological Society, 2004)
We have investigated in Sinorhizobium fredii HH103-1 (=HH103 Strr ) the influence of the nolR gene on the production of three different bacterial symbiotic signals: Nod factors, signal responsive (SR) proteins, and ...
Artículo
Carbon disulfide (CS2)
(Georg Thieme Verlag, 2009)
Artículo
Fragment-based screening of the donor substrate specificity of human blood group B galactosyltransferase using saturation transfer difference NMR
(American Society for Biochemistry and Molecular Biology, 2006)
Saturation transfer difference NMR experiments on human blood group B α-(1,3)-galactosyltransferase (GTB) for the first time provide a comprehensive set of binding epitopes of donor substrate analogs in relation to the ...
Artículo
Synthesis of tri- and tetramines containing two 2,3-dihydroxypyrrolidine moieties and their inhibitory activity toward α-mannosidases
(Arkat USA, 2002)
Through the reductive amination of N-[(tert-butoxy)carbonyl]-2,5-dideoxy-2, 5-imino-3,4-O-isopropylidene-L-ribose with tetramethylenediamine, hexamethylenediamine, 2,7-diaminofluorene, 4,4′-diaminodiphenylmethane and ...
Artículo
Synthesis of sugar oxazolines by intramolecular Ritter-like reaction of D-fructose precursors
(2004)
Treatment of D-fructopyranose and D-fructofuranosc 1,2-O-acetonide derivatives with triflic acid in the presence of a variety of nitriles results in the formation of fused or spiro 2-oxazolines. The reaction implies (i) ...
Artículo
A novel approach to the synthesis of N-substituted 1-C-aminomethyl glycofuranosides
(2006)
Reductive amination of formyl C-glycofuranosides, easily available from hexose-derived equatorial-2-OH-glycopyranosides by DAST-promoted ring contraction, afforded N-substituted 1-C-aminomethyl glycofuranosides in most ...
Artículo
Synthesis of tri- and tetramines containing two 2,3-dihydroxypyrrolidine moieties and their inhibitory activity toward α-mannosidases
(ARKAT USA INC, 2002)
Through the reductive amination of N-[(tert-butoxy)carbonyl]-2,5-dideoxy-2,5-imino-3,4-Oisopropylidene-L-ribose with tetramethylenediamine, hexamethylenediamine, 2,7- diaminofluorene, 4,4'-diaminodiphenylmethane and ...
Artículo
Trimethylsilylacetonitrile (TMSAN)
(2009)
(A) The condensation of TMSAN with ketones in the presence of the catalytic t-Bu-P4 base to give cyanoalkenes has been reported;3 title compounds were prepared in a 63-80% yield. The reaction was also extended to the ...