852248-32-9Relevant academic research and scientific papers
Synthesis of N-urethane protected α-aminoalkyl-α-cyanomethyl ketones; Application to the synthesis of 3-substituted 5-amino-1H-pyrazole tethered peptidomimetics
Sharnabai,Nagendra,Sureshbabu, Vommina V.
experimental part, p. 1913 - 1918 (2012/09/25)
The preparation of N-protected amino/peptide α-cyanomethyl ketones through cyanation of the corresponding α-bromomethyl ketones is described. The utility of the resulting α-cyanomethyl ketones in the synthesis of 3-substituted-5-amino-1H-pyrazoles has also been demonstrated. In both steps a wide range of N-protected amino/peptide acids has been employed and the products are obtained in good yield. The enantiomeric purity of both the α-cyanomethyl ketones and pyrazoles were confirmed by chiral HPLC analysis of the corresponding Z-protected d- and l-Ala-OH as model substrates. The synthesis of peptide pyrazolecarboxamides is also delineated. Georg Thieme Verlag Stuttgart · New York.
Chiral imidazole derivatives synthesis from enantiopure N-protected α-amino acids
Bures, Filip,Kulhanek, Jiri
, p. 1347 - 1354 (2007/10/03)
A route to the preparation of enantiopure ligands based on a 2-phenylimidazol ring is described. The stereogenic centre is placed into the chain bonded to the fourth carbon of the imidazole ring. The synthesis starts from inexpensive and readily available
