Developing novel activity-based fluorescent probes that target different classes of proteasesElectronic supplementary information (ESI) available: experimental details. See http://www.rsc.org/suppdata/cc/b4/b404471a/

In this article, we report the design and synthesis of a group of novel activity-based probes that target different protease sub-classes based on their substrate specificities, rather than their enzymatic mechanisms. The feasibility of our approach has been demonstrated by using representative members of the different protease sub-classes.