In an effort to develop potent new antituberculous drugs effective against Mycobacterium tuberculosis, we have prepared series of cinnamic derivatives (thioesters and amides) with 4-hydroxy and 4-alkoxy groups and investigated the in vitro activities of these compounds. Among them some displayed a good in vitro antibacterial activity, such as (E)-N-(2-acetamidoethyl)-3-4-[(E)-3,7-dimethylocta-2,6-dienyloxy]phenyl} acrylamide 4b that showed a minimum inhibitory concentration of 0.1 mu g/mL (0.26 mu M) against M. tuberculosis H37Rv. (C) 2008 Elsevier Ltd. All rights reserved.
Development of Protein-Labeling Probes with a Redesigned Fluorogenic Switch Based on Intramolecular Association for No-Wash Live-Cell Imaging
switch: Fluorogenicprobes for protein labeling based on the photoactive yellow protein (PYP) tag were developed. The fluorescence of the probes is turned off by intramolecular association and switched on by the reversal of this interaction upon reaction with the PYP tag that is fused to the protein of interest (POI, see scheme). The rapid and specific labeling reaction enabled the imaging of cell‐surface