Using CC(=O)O, CCCOc1ccccc1-c1nc2nnc(SC)nc2c(=O)[nH]1 to produce CCCOc1ccccc1-c1nc2nnc(OC)nc2c(=O)[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.