Using CCc1nc2cnc3ccccc3c2n1CC(C)(C)O, C=CS(C)(=O)=O to produce CCc1nc2cnc3ccccc3c2n1CC(C)(C)OCCS(C)(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.