Using NO, O=C(Cn1c2c(c(=O)n3nc(-c4ccccc4)cc13)CN(C1CCCCC1)C2=O)c1ccccc1 to produce O=C1c2c(c(=O)n3nc(-c4ccccc4)cc3n2CC(=NO)c2ccccc2)CN1C1CCCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.