Using O=C(NC12CC3CC(C1)C(=S)C(C3)C2)OCc1ccccc1 to produce O=C(NC12CC3CC(C1)C(S)C(C3)C2)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.