Using O=C(CBr)c1cccc2c1CC(=CCCBr)c1cccnc1O2, NC(N)=S to produce Nc1nc(-c2cccc3c2CC(=CCCBr)c2cccnc2O3)cs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.