英文名称
                                        
                                            
(S)--(-(((,-diethyl--hydroxy-3,-dioxo-3,,2,-tetrahydro-H-pyrano[3',':6,7]indolizino[,2-b]quinolin--yl)oxy)carbonyl)piperidin--yl)piperidine -oxide  (Irinotecan Impurity)
                                            
                                        
                                        
                                        
                                     
                                    
                                    
                                        Smiles Code
                                         [O-][N+](C2CCN(C(OC3=CC=CN=C5C(CN6C(C(COC([C@@]7(CC)O)=O)=C7C=C65)=O)=C(CC)C=C3)=O)CC2)CCCCC