Kinetics of<i>N</i>-bromination of 2-oxazolidinone
作者:F. A. Amoedo、J. M. Antelo、F. Arce、M. Parajó、E. Teixeiro
DOI:10.1002/kin.20040
日期:2004.12
The kinetics of N-bromination of 2-oxazolidinone by transfer of Br from sodium hypobromite, N-bromosuccinimide (NBS), or N-bromoacetamide (NBA) were determined spectrophotometrically, at pH between 4.6 and 12.45 (depending on the brominating agent). The reaction with hypobromite was of first order with respect to both the hypobromite and the substrate. The bromination of oxazolidinone with NBS (or
ubiquitinated histones and their analogs is important for biochemical and biophysical studies on histone ubiquitination. Here, we report the CAACU (cysteine-aminoethylation assisted chemical ubiquitination) strategy for the efficient synthesis of ubiquitinated histone analogs. The key step in the CAACU strategy is the installation of an N-alkylated 2-bromoethylamine derivative into a recombinant histone