Using O=C1CCC(=O)N1Br, COc1ccc(-c2ccc(C)cc2)cc1P(=O)(OC)OC to produce COc1ccc(-c2ccc(CBr)cc2)cc1P(=O)(OC)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.