Using OCCCOc1ccccc1Cl, Cc1ccnc2nc(Cl)[nH]c(=O)c12 to produce Cc1ccnc2nc(OCCCOc3ccccc3Cl)[nH]c(=O)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.