Using COc1cccc(C(C)CC[P+](c2ccccc2)(c2ccccc2)c2ccccc2)c1, O=Cc1ccncc1 to produce COc1cccc(C(C)CC=Cc2ccncc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.