Using COc1ccc2nccc(C(O)CCCCC3CN(c4ccc5c(c4)OCCO5)C(=O)O3)c2n1 to produce COc1ccc2nccc(C(=O)CCCCC3CN(c4ccc5c(c4)OCCO5)C(=O)O3)c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.