Using CC(C)(C)OC(=O)N1CCC[C@H]1C(=O)NCC(=O)NCC(=O)NCC(=O)OCc1ccccc1 to produce O=C(CNC(=O)CNC(=O)[C@@H]1CCCN1)NCC(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.