Using COc1ncc(C=O)cc1Br, COC[P+](c1ccccc1)(c1ccccc1)c1ccccc1 to produce CO/C=C/c1cnc(OC)c(Br)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.