Addressing species specific metabolism and solubility issues in a quinoline series of oral PDE4 inhibitors
                                
                                    
                                        作者:C. Lunniss、C. Eldred、N. Aston、A. Craven、K. Gohil、B. Judkins、S. Keeling、L. Ranshaw、E. Robinson、T. Shipley、N. Trivedi                                    
                                    
                                        DOI:10.1016/j.bmcl.2009.11.010
                                    
                                    
                                        日期:2010.1
                                    
                                    Species specific conversion of the lead PDE4 inhibitor 1 to the quinolone 3 was identified as the major route of metabolism in the cynomolgus monkey. Modification of the template to give the cinnoline 9 retained potency and selectivity, and greatly improved the pharmacokinetic pro. le in the cynomolgus monkey compared with 1. Additional SAR studies aimed at improving the solubility of 9 are also described. (C) 2009 Elsevier Ltd. All rights reserved.