Design, synthesis and reactivity of C2-symmetric azobenzene-based amino acid-bis(propargyl sulfones)
作者:Debarati Mitra、Deb Ranjan Banerjee、Amit Kumar Das、Amit Basak
DOI:10.1016/j.bmcl.2010.08.085
日期:2010.11
C-2-Symmetric azobenzene-amino acid linked bis(propargyl sulfones) 1 and 2 containing stable E azo moiety have been synthesized. Upon irradiation with long wavelength UV these compounds isomerized to the Z-form, whose thermal reisomerization to the E-isomer slowed down considerably Under basic pH, the compounds showed DNA cleavage in mu molar concentrations with the Z-isomers showing better cleaving efficiency. The difference in cleaving efficiency between the Z and the E-isomer is more than the corresponding pair of sulfones without amino acid linker. (C) 2010 Elsevier Ltd. All rights reserved.