Using CC(CC[P+](c1ccccc1)(c1ccccc1)c1ccccc1)CC(=O)O, O=CCCCCCCCCCBr to produce CC(C/C=C\CCCCCCCCCBr)CC(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.