Using O=Cc1cn(-c2cccnc2)c2ccccc12, O=C(O)CCCCC[P+](c1ccccc1)(c1ccccc1)c1ccccc1 to produce O=C(O)CCCCC=Cc1cn(-c2cccnc2)c2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.