英文别名Irinotecan Impurity 21; Irinotecan Impurity 4; Irinotecan Impurity; Irinotecan Keto Impurity; Irinotecan ring opening impurity; (12-ethyl-8-methyl-9-oxo-7-propanoyl-11H-indolizino[1,2-b]quinolin-2-yl) 4-piperidin-1-ylpiperidine-1-carboxylate; [1,4'-Bipiperidine]-1'-carboxylic Acid 12-Ethyl-9,11-dihydro-8-methyl-9-oxo-7-(1-oxopropyl)indolizino[1,2-b]quinolin-2-yl Ester; 12-Ethyl-8-methyl-7-propionyl-2-[[4-(piperidin-1-yl)piperidin-1-yl]carbonyloxy]indolizino[1,2-b]quinolin-9(11H)-one