3,10-diethyl-1,13-dioxo-1,3,11,13-tetrahydrofuro[3',4':6,7]indolizino[1,2-b]quinolin-8-yl [1,4'-bipiperidine]-1'-carboxylate; Irinotecan Lactone Impurity
3,10-diethyl-1,13-dioxo-1,3,11,13-tetrahydrofuro[3',4':6,7]indolizino[1,2-b]quinolin-8-yl [1,4'-bipiperidine]-1'-carboxylate; Irinotecan Lactone Impurity