Using Cc1[nH]c(=S)[nH]c1-c1cc(C(C)(C)C)c(O)c(C(C)(C)C)c1, O=C([O-])[O-] to produce CSc1nc(-c2cc(C(C)(C)C)c(O)c(C(C)(C)C)c2)c(C)[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.