Using Cc1ccccc1P(=NC(=O)n1ccnc1)(c1ccccc1)c1ccccc1, OCc1cccnc1 to produce Cc1ccccc1P(=NC(=O)OCc1cccnc1)(c1ccccc1)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.