Using BrCc1ccccc1, CCOCCn1c(NC2CCN(C(=O)OCC)CC2)nc2cccnc21 to produce CCOCCn1c(N(Cc2ccccc2)C2CCN(C(=O)OCC)CC2)nc2cccnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.