Using O=c1[nH]c(Cl)nc2ncc(Cl)cc12, OCCCOc1ccccc1 to produce O=c1[nH]c(OCCCOc2ccccc2)nc2ncc(Cl)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.