Using CC(C)(C)OC(=O)Nc1ccc2c(c1)C(CO)c1cc(NC(=O)OC(C)(C)C)ccc1-2 to produce Nc1ccc2c(c1)C(CO)c1cc(N)ccc1-2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.