Using O=C(O)c1ccccc1, C=CCOC(=O)N1C[C@H](O)C[C@H]1C=C(C)C(C)=O to produce C=CCOC(=O)N1C[C@@H](OC(=O)c2ccccc2)C[C@H]1C=C(C)C(C)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.