Using CC(O)CC(=O)O, COC(=O)c1cc(C=O)cnc1C1=NC(C)(C(C)C)C(=O)N1 to produce COC(=O)c1cc(C2OC(=O)CC(C)O2)cnc1C1=NC(C)(C(C)C)C(=O)N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.