Using CC(C)(C)OC(=O)NCC(=O)c1ccc(OCC(=O)O)cc1, CN1CCOCC1 to produce CCN(CC)C(=O)COc1ccc(C(=O)CNC(=O)OC(C)(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.