Using COCCNc1nc2ccc(Br)cc2n1-c1ccnc(N)n1, C#CC(C)(O)c1nc(C)cs1 to produce COCCNc1nc2ccc(C#CC(C)(O)c3nc(C)cs3)cc2n1-c1ccnc(N)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.