Using CCOC(=O)c1noc(C(Cc2ccc3ccccc3c2)N(C)C(=O)OC(C)(C)C)n1 to produce CCOC(=O)c1noc(C(Cc2ccc3ccccc3c2)NC)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.