Using Nc1c(Cl)cc(C2CN(CCCCCCOCCc3ccccn3)C(=O)O2)cc1Cl to produce Nc1c(Cl)cc(C(O)CNCCCCCCOCCc2ccccn2)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.