Using CC(=O)C(C)(C)C, CCOC(=O)c1ncn2c1c(=O)n(C(C)(C)C)c1ccccc12 to produce CC(C)(C)C(=O)CC(=O)c1ncn2c1c(=O)n(C(C)(C)C)c1ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.