Using O=C([O-])[O-], CCC(COC)n1cc(-c2ccc(C#N)cc2)c2c(=O)[nH]ccc21 to produce CCC(COC)n1cc(-c2ccc(C(N)=O)cc2)c2c(=O)[nH]ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.