Using CC(NC(=O)CBr)c1nc2c(N3CCOCC3)nc(Cl)nc2[nH]1 to produce CC1NC(=O)Cn2c1nc1c(N3CCOCC3)nc(Cl)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.