Using c1ccc2sc(Oc3ccc4c(CN5CCOCC5)c[nH]c4c3)nc2c1, CI to produce Cn1cc(CN2CCOCC2)c2ccc(Oc3nc4ccccc4s3)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.