Thiol Specific and Tracelessly Removable Bioconjugation via Michael Addition to 5-Methylene Pyrrolones
作者:Yingqian Zhang、Xiaoping Zhou、Yonghui Xie、Marc M. Greenberg、Zhen Xi、Chuanzheng Zhou
DOI:10.1021/jacs.7b00670
日期:2017.5.3
under physiologically relevant conditions and cysteine specificity compared to commonly used analogues, maleimides. Michael addition of thiol to 5MPs occurs rapidly, cleanly, and does not generate a stereocenter. The conjugates efficiently release thiols via retro-Michael reaction in alkaline buffer (pH 9.5) or via thiol exchange at pH 7.5. This unique property makes 5MPs valuable for the controlled release