Using CC(=O)OCCCCBr, CCOC(=O)c1nn(-c2ccc(OC)cc2)c2c1CCNC2=O to produce CCOC(=O)c1nn(-c2ccc(OC)cc2)c2c1CCN(CCCCOC(C)=O)C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.