Using O=Cc1ccccc1C(=O)O, CCOC(=O)C(C)c1ccc(N)cc1 to produce CCOC(=O)C(C)c1ccc(NC2OC(=O)c3ccccc32)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.