Using OCCCCCl, CCCCN1CCC(CNC(=O)c2c[nH]c3ccccc23)CC1 to produce CCCCN1CCC(CNC(=O)c2c(OCCCCCl)[nH]c3ccccc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.