Saponaceolides: Differential cytotoxicity and enantioselective synthesis of the right-hand lactone moiety
                                
                                    
                                        作者:Giovanni Vidari、Gianluigi Lanfranchi、Patrizia Sartori、Stefano Serra                                    
                                    
                                        DOI:10.1016/0957-4166(95)00371-1
                                    
                                    
                                        日期:1995.12
                                    
                                    The enantioselective synthesis of the right-hand lactone moiety 5 of saponaceolide B, 2, is described. The mean graph profiles of 5 do not match the characteristic patterns of differential cytotoxicity of saponaceolides A, 1, and B, 2, in the NCI human disease-oriented tumor screening panel, pointing out the need of the entire saponaceolide structure for maintaining the specificity and potency of the antitumor activity. En route to 5 several useful chiral building blocks, such as compounds 6, 10, 19, 27, and 28 were prepared.