Using CC(=O)c1cccc(N)c1, c1ccc(P(c2ccccc2)c2ccccc2)cc1 to produce CC(=O)c1cccc(N=P(c2ccccc2)(c2ccccc2)c2ccccc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.