Using NO, CC(=O)c1ccc(CNc2c(Cl)ccc3c2CCN(C(=O)C(F)(F)F)CC3)cc1 to produce CC(=NO)c1ccc(CNc2c(Cl)ccc3c2CCN(C(=O)C(F)(F)F)CC3)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.