Kinetic parameters have been measured for coupled nucleophilic and solvolytic reactions of 2,2,2-trifluoroethanesulfonyl (tresyl)-modified poly(ethylene glycol) based on a system of coupled differential equations implied by recently proposed elementary reaction mechanisms. Fitted kinetic parameters were found to be strong functions
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 22(5), 399-408 (2004-07-22)
Oil-based depot formulations may constitute a future delivery method for small peptides. Thus, a requirement is attainment of sufficient oil solubility for such active compounds. A model dipeptide (Gly-Phe) has been converted into lipophilic prodrugs by esterification at the C-terminal
Chemistry (Weinheim an der Bergstrasse, Germany), 6(21), 3906-3913 (2000-12-29)
Oligopeptides are efficiently hydrolyzed by Ce(IV) to the corresponding amino acids under mild conditions. The pseudo first-order rate constants for the hydrolysis of H-Gly-Phe-OH and H-Gly-Gly-OH at pH 7.0 and 50 degrees C are 3.5 x 10(-1) and 2.8 x
Bioscience, biotechnology, and biochemistry, 71(8), 2083-2086 (2007-08-11)
The aim of this study was to improve the performance of affinity gels containing glycyl-D-phenylalanine (Gly-D-Phe) as a ligand to thermolysin. Gly-D-Phe was immobilized to the resin through spacers of varying chain lengths. The resulting affinity gels had spacer chain
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