Using CCOC(=O)CCCBr, O=C1CN2Cc3cc(O)ccc3N=C2N1 to produce CCOC(=O)CCCOc1ccc2c(c1)CN1CC(=O)NC1=N2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.