Using CCOC(=O)c1ccc(COc2cccc(NC(C)=O)c2C=O)cc1 to produce CC(=O)Nc1cccc(OCc2ccc(C(=O)O)cc2)c1C=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.