Using NC(N)=S, COc1ccc2ncc3c(c2c1)CC(C(=O)CBr)CO3 to produce COc1ccc2ncc3c(c2c1)CC(c1csc(N)n1)CO3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.