Using CCOC(=O)C1(C(=O)Nc2cccc3cnccc23)Cc2ccccc2C1 to produce CCOC(=O)C1(C(=O)Nc2cccc3c2CCNC3)Cc2ccccc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.