Using C1COCCN1, COC(=O)[C@@H](CC(=O)O)CC1(Cc2ccccc2)CC1 to produce O=C(O)[C@@H](CC(=O)N1CCOCC1)CC1(Cc2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.