Irinotecan EP Impurity F

Chemical Name: (S)-4,11-diethyl-4-hydroxy-1,12-dihydro-14H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14(4H)-dione (as per EP); (S)-4,11-Diethyl-4-hydroxy-1H-pyrano[3′,4′:6,7]indolizino[1,2-b]quin oline-3,14(4H,12H)-dione (as per USP)

Smile: O=C1C2=C([C@@](O)(CC)C(OC2)=O)C=C3C4=NC5=CC=CC=C5C(CC)=C4CN31