Using CC(C)(C)OC(=O)C(NC=S)C(O)(CBr)C(F)(F)F to produce CC(C)(C)OC(=O)[C@H]1N=CSC[C@]1(O)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.