Using CC(=O)n1cccn1, CC(C)(C)OC(=O)N1C2COCC1CC(=O)C2 to produce CC(=O)C1C(=O)CC2COCC1N2C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.