Using COCc1c(C=O)ncc2[nH]c3ccc(OCc4ccccc4)cc3c12, NO to produce COCc1c(C=NO)ncc2[nH]c3ccc(OCc4ccccc4)cc3c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.