84899-60-5Relevant academic research and scientific papers
Structural insight into the aggregation of l-prolyl dipeptides and its effect on organocatalytic performance
Berdugo, Cristina,Escuder, Beatriu,Miravet, Juan F.
supporting information, p. 592 - 600 (2015/02/18)
NMR and organocatalytic studies of four dipeptides derived from l-proline are described. Results indicate that important conformational changes around the catalytic l-proline moiety are observed for free dipeptides upon changing the adjacent amino acid. Also, an aggregation process is detected as the concentration increases. The self-association of the dipeptides has been fitted to a cooperative binding model. All the compounds have been assayed as catalysts for the conjugated addition of cyclohexanone to trans-β-nitrostyrene in toluene. In agreement with the structural studies, noticeable changes in the catalytic performance are detected upon changing the catalyst concentration, as the catalyst is activated by self-aggregation. This journal is
Synthesis of chiral tropopodands having l-amino acid moieties and ability of their metal complexes as an asymmetric catalyst
Sato, Ohki,Koshiba, Yusuke,Sagara, Satoshi,Okada, Katsuyoshi
, p. 529 - 533 (2007/10/03)
Optical active tropopodans (10 and 11) having neutral l-amino acids and l-histidine moieties were synthesized. Within their metal complexes, Pd complexes of histidine-tropopodands (11b and 11c) bearing bulky amide moieties showed good ability as an asymmetric catalyst in conjugate addition.
Synthesis of Polyamine Analoa of Spider Toxins
Benz, Herbert,Hesse, Manfred
, p. 957 - 971 (2007/10/02)
Within the last few years, polyamine toxins derived from various arthropods raised increasing interest due their interaction with glutamate receptors of insects and invertebrates.Compounds 51 and 52 were prepared together with 53-58 to study a new pathway
Alkylamides of carboxyalkanoyl peptides and method for preparation thereof
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, (2008/06/13)
A method is described for the preparation of novel alkylamides of carboxyalkanoyl peptides of the formula STR1 wherein R is an aralky or an alkyl group of 1-5 carbon atoms, A is a residue of peptidically bound proline or alanine, B is a straight bond or a
