Using O=C(O)c1cccn2c(=O)c3ccc(Br)cc3nc12, CN(C)CCN to produce CN(C)CCNC(=O)c1cccn2c(=O)c3ccc(Br)cc3nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.