Using CC(C)C(O)c1cc2c(cn1)C(C)(C)CN2C(=O)OC(C)(C)C to produce CC(C)C(=O)c1cc2c(cn1)C(C)(C)CN2C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.