Using Cc1cc(C(=O)c2nc(-c3ccccc3)c(-c3nc4c(N)ncnc4s3)n2C)no1 to produce Cc1cc(C(O)c2nc(-c3ccccc3)c(-c3nc4c(N)ncnc4s3)n2C)no1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.