Using COc1cc2c(cc1O)CCNC2C, O=C(O)c1cc2ncc(Br)cn2n1 to produce COc1cc2c(cc1O)CCN(C(=O)c1cc3ncc(Br)cn3n1)C2C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.