Using NC(=O)c1cccc2[nH]c(C3Cc4ccccc4N3C(=O)OCc3ccccc3)nc12 to produce NC(=O)c1cccc2[nH]c(C3Cc4ccccc4N3)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.