Using CCOC(=O)C(CCC=O)NC(=O)c1ccccc1, CCOC(=O)CN=Cc1ccccc1 to produce CCOC(=O)C(CCC(O)C(N)C(=O)OCC)NC(=O)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.