Synthesis of novel ageladine A analogs showing more potent matrix metalloproteinase (MMP)-12 inhibitory activity than the natural product
                                
                                    
                                        作者:Naoki Ando、Shiro Terashima                                    
                                    
                                        DOI:10.1016/j.bmcl.2009.07.099
                                    
                                    
                                        日期:2009.9
                                    
                                    By employing a previously established synthetic scheme, the synthesis described in the title was carried out in order to explore the substituent effects in the pyrrole ring of ageladine A on MMP-12 inhibitory activity. It became evident that a halogen atom (Br or Cl) at the 2-position and an additional bromine atom at the 4-position are highly effective for improving the inhibitory activity. These studies led us to discover three novel ageladine A analogs (4a. c, o) showing more potent MMP-12 inhibitory activity than the natural product. (C) 2009 Elsevier Ltd. All rights reserved.