Using COC[P+](c1ccccc1)(c1ccccc1)c1ccccc1, COc1ccccc1C(=O)c1cc(Br)cnc1N to produce COC=C(c1ccccc1OC)c1cc(Br)cnc1N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.