Using CC(C)NNC(=O)c1ccccc1, CCC(C)c1ccccc1OCC(=O)O to produce CCC(C)c1ccccc1OCC(=O)N(NC(=O)c1ccccc1)C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.