Using CCOCc1nc2c(N)nc3ccccc3c2n1CC(C)(C)CS(C)(=O)=O to produce CC(C)(Cn1c(CO)nc2c(N)nc3ccccc3c21)CS(C)(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.