Using O=C(CBr)C1=CC=C[C+]=C1, CCOC(=O)c1sc(N)nc1-c1ccccc1 to produce CCOC(=O)c1sc2nc(-c3ccccc3)cn2c1-c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.