Using CCOC(=O)c1nc2ccccc2c(=O)[nH]1, NCc1ccnc(OCCSc2nc[nH]n2)c1 to produce O=C(NCc1ccnc(OCCSc2nc[nH]n2)c1)c1nc2ccccc2c(=O)[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.