Using CCOC(=O)c1cc2c(Oc3ccc(C)cc3N)cccc2[nH]1 to produce CCOC(=O)c1cc2c(Oc3ccc(C)cc3)cccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.