Irinotecan EP Impurity K

Chemical Name: (4S)-4-ethyl-4-hydroxy-11-(1-hydroxypropyl)-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)

Synonym: ethyl (2RS)-2-(6-chloro-9H-carbazol-2-yl)propanoate

Smile: OC(C1=C(CN2C3=CC([C@@]4(O)CC)=C(COC4=O)C2=O)C3=NC5=CC=C(OC(N6CCC(N7CCCCC7)CC6)=O)C=C15)CC