Using CCOC(=O)CBr, CC1(C)NN(C2C3CC4CC(C3)CC2C4)C1=O to produce CCOC(=O)CN1N(C2C3CC4CC(C3)CC2C4)C(=O)C1(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.