Using COC(=O)CCN, CC(C)CC(=O)c1ccc(C(=O)O)cc1 to produce COC(=O)CCNC(=O)c1ccc(C(=O)CC(C)C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.