Using NCCO, Cc1ccc(-c2cc3cc(C=O)ccc3n2C(=O)OC(C)(C)C)c2c1CNC2=O to produce Cc1ccc(-c2cc3cc(CNCCO)ccc3n2C(=O)OC(C)(C)C)c2c1CNC2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.