Using COc1ccc2c(-c3c(C(C)C)ccc4[nH]ncc34)nc(C)c(C=O)c2c1 to produce Cc1nc(-c2c(C(C)C)ccc3[nH]ncc23)c2ccc(O)cc2c1C=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.