Using CCOCC(=O)Cl, Cc1nc(Oc2ccccc2)c(N)c(NCCOCCCc2nccs2)c1C to produce CCOCc1nc2c(Oc3ccccc3)nc(C)c(C)c2n1CCOCCCc1nccs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.