Using COC(=O)C(c1ccccc1)N1C(=O)C(N2C(=O)c3ccccc3C2=O)C1C=O, C1CCOC1 to produce COC(=O)C(c1ccccc1)N1C(=O)C(N2C(=O)c3ccccc3C2=O)C1C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.