Using OCCCCCc1ccccc1, Cc1ccc2c(=O)[nH]c(Cl)nc2n1 to produce Cc1ccc2c(=O)[nH]c(OCCCCCc3ccccc3)nc2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.