Using COC(=O)CCc1ccccc1[C@@H](C)OC[C@H](O)CNC(C)(C)Cc1ccc2ccccc2c1 to produce C[C@@H](OC[C@H](O)CNC(C)(C)Cc1ccc2ccccc2c1)c1ccccc1CCC(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.