more active compounds, where 14t that possesses a 4-octyloxy-phenyl-substituent was the most potent and displayed cytotoxic activity in the microM range. It is assumed that the oxazolinium salts act as alkylatingagents, and undergo nucleophilic attack on the methylene adjacent to the ring oxygen where the oxazolinium ring parallels the aziridinium ring intermediate found in classical alkylating agents
Structure-Based Design of Potent and Selective <i>Leishmania</i> <i>N</i>-Myristoyltransferase Inhibitors
作者:Jennie A. Hutton、Victor Goncalves、James A. Brannigan、Daniel Paape、Megan H. Wright、Thomas M. Waugh、Shirley M. Roberts、Andrew S. Bell、Anthony J. Wilkinson、Deborah F. Smith、Robin J. Leatherbarrow、Edward W. Tate
DOI:10.1021/jm5011397
日期:2014.10.23
Inhibitors of Leishmania N-myristoyltransferase (NMT), a potential target for the treatment of leishmaniasis, obtained from a high-throughput screen, were resynthesized to validate activity. Crystal structures bound to Leishmania major NMT were obtained, and the active diastereoisomer of one of the inhibitors was identified. On the basis of structural insights, enzyme inhibition was increased 40-fold through hybridization of two distinct binding modes, resulting in novel, highly potent Leishmania donovani NMT inhibitors with good selectivity over the human enzyme.