Using C=CCCCCCCCCCBr, Cn1c(=O)c2[nH]cnc2n(C)c1=O to produce C=CCCCCCCCCCn1cnc2c1c(=O)n(C)c(=O)n2C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.