Using NO, COC(=O)CN(CCc1ccccc1)P(=O)(c1ccccc1)c1ccccc1 to produce O=C(CN(CCc1ccccc1)P(=O)(c1ccccc1)c1ccccc1)NO, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.