Using CCOC(=O)c1s/c(=N\C)n(C)c1CBr, NC1CCN(C(=O)OCc2ccccc2)CC1 to produce CCOC(=O)c1s/c(=N\C)n(C)c1CNC1CCN(C(=O)OCc2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.