Kulokekahilide-2, a Cytotoxic Depsipeptide from a Cephalaspidean Mollusk <i>Philinopsis speciosa</i>
                                
                                    
                                        作者:Yoichi Nakao、Wesley Y. Yoshida、Yuuki Takada、Junji Kimura、Liu Yang、Susan L. Mooberry、Paul J. Scheuer                                    
                                    
                                        DOI:10.1021/np049949f
                                    
                                    
                                        日期:2004.8.1
                                    
                                    A cytotoxic depsipeptide, kulokekahilide-2 (1), was isolated from a cephalaspidean mollusk, Philinopsis speciosa. The structure elucidation of kulokekahilide-2 was carried out by spectroscopic analysis and chemical degradation. Kulokekahilide-2 showed potent cytotoxicity against several cell lines (P388, SKOV-3, MDA-MB-435, and A-10 with IC50 values ranging from 4.2 to 59.1 nM) indicating cancer cell selectivity.