Using NO, COc1cccc(C(=O)C2CCN(C(=O)OC(C)(C)C)CC2)c1F to produce COc1cccc(C(=NO)C2CCN(C(=O)OC(C)(C)C)CC2)c1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.