6453-64-1Relevant articles and documents
Isolation and structure elucidation of the major degradation products of cefaclor formed under aqueous acidic conditions
Baertschi, Steven W.,Dorman, Douglas E.,Occolowitz, John L.,Collins, Monte W.,Spangle, Larry A.,Stephenson, Gregory A.,Lorenz, Leslie J.
, p. 526 - 538 (1997)
The aqueous acidic degradation of the oral cephalosporin cefaclor was investigated. A number of degradation products were isolated and characterized. The degradation products can be loosely classified into three categories: thiazole derivatives, pyrazine
Penicillin acylase-catalyzed peptide synthesis in aqueous medium: A chemo-enzymatic route to stereoisomerically pure diketopiperazines
Khimiuk, Andrei Y.,Korennykh, Alexei V.,Van Langen, Luuk M.,Van Rantwijk, Fred,Sheldon, Roger A.,Svedas, Vytas K.
, p. 3123 - 3128 (2007/10/03)
A range of non-natural dipeptides of the general formula D-(-)-phenylglycyl-L-X, where X is a natural α-amino acid, have been prepared by penicillin acylase-catalyzed synthesis in aqueous medium from D-(-)-phenylglycine amide and the corresponding amino acids. The conversion of the dipeptides to the corresponding dipeptide esters, followed by their subsequent spontaneous cyclization afforded the corresponding stereoisomerically pure diketopiperazines.