Using CC(C)(C)OC(=O)Cn1c2c(c3ccccc31)CCN(C(=O)OCc1ccccc1)C2 to produce CC(C)(C)OC(=O)Cn1c2c(c3ccccc31)CCNC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.