類縁物質A，B，C及びDは，「イリノテカン塩酸塩水和物」のその他を準用する．

類縁物質IA




6-{[1,4'-Bipiperidine]-1'-carbonyloxy}-4-ethyl-2-[(4S)-4-ethyl-4-hydroxy-3,8-dioxo-3,4,7,8-tetrahydro-1H-pyrano[3,4-c]pyridin-6-yl]quinoline-3-carboxylic acid

類縁物質IB




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

類縁物質IC




12-Ethyl-8-methyl-9-oxo-7-propionyl-9,11-dihydroindolizino[1,2-b]quinolin-2-yl[1,4'-bipiperidine]-1'-carboxylate