Using CCOC(=O)N1C(=O)c2ccccc2C1=O, CCCOc1ccc(C(N)CC(=O)O)cc1 to produce CCCOc1ccc(C(CC(=O)O)N2C(=O)c3ccccc3C2=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.