Using Cc1nc2sccn2c1C(=O)CBr, CCOc1ccc(NC(N)=S)cc1 to produce CCOc1ccc(Nc2nc(-c3c(C)nc4sccn34)cs2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.