Using CCC1(C)CC2(NC(=O)N(C)C2=O)C(C)C(C)(CC)N1C, O=C([O-])[O-] to produce CCC1(C)CC2(C(=O)N(C)C(=O)N2C)C(C)C(C)(CC)N1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.