Using CC(C)(C)OC(=O)N1CCc2cc(NC(=O)[C@@H]3CC[C@@H]4CN3C(=O)N4OCc3ccccc3)ccc2C1 to produce CC(C)(C)OC(=O)N1CCc2cc(NC(=O)[C@@H]3CC[C@@H]4CN3C(=O)N4O)ccc2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.