Using NO, CC1CN(Cc2ccccc2)Cc2c(C=O)c(-c3ccccc3)n(Cc3ccccc3)c21 to produce CC1CN(Cc2ccccc2)Cc2c(C=NO)c(-c3ccccc3)n(Cc3ccccc3)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.