Using CC(C)(C)OC(=O)N1CC(Oc2ccccc2C=O)C1, O=P([O-])(O)O to produce CC(C)(C)OC(=O)N1CC(Oc2ccccc2C(=O)O)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.