Using II, COc1cccc2c1C(O)N(C(C)(C)c1ccccc1)C2=O to produce COc1ccc(I)c2c1C(O)N(C(C)(C)c1ccccc1)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.