Using CCOC(=O)N1C(=O)c2ccccc2C1=O, CCOC(=O)CC(N)c1ccc(OC)cc1 to produce CCOC(=O)CC(c1ccc(OC)cc1)N1C(=O)c2ccccc2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.