Using NO, COc1ccc2c(Cc3c(Cl)cncc3Cl)nn(CC(=O)O)c(=O)c2c1 to produce COc1ccc2c(Cc3c(Cl)cncc3Cl)nn(CC(=O)NO)c(=O)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.