Irinotecan EP Impurity M

Chemical Name: (4S)-4,11-diethyl-4,12-dihydroxy-3,14-dioxo-3,4,12,14-tetrahydro-1H-pyrano[3′,4′:6,7]indolizino[1,2-b]quinolin-9-yl 1,4′-bipiperidine-1′-carboxylate (as per EP)

Smile: OC(C(C1=NC2=CC=C(OC(N3CCC(N4CCCCC4)CC3)=O)C=C52)=C5CC)N6C1=CC([C@](O)7CC)=C(COC7=O)C6=O