Using CCOCCn1c(Cl)nc2ccccc21, CCOC(=O)N1CCC(O)CC1 to produce CCOCCn1c(OC2CCN(C(=O)OCC)CC2)nc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.