Using NO, COc1ccc(C(=O)c2cc(CCC(=O)O)c(OC)cc2OC)cc1 to produce COc1ccc(C(=NO)c2cc(CCC(=O)O)c(OC)cc2OC)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.