Using O=C([O-])[O-], CCOC(=O)CCc1ccc(-c2ccc3c(c2)OCO3)n1-c1ccc(C#N)cc1C to produce Cc1cc(C(N)=O)ccc1-n1c(CCC(=O)O)ccc1-c1ccc2c(c1)OCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.