Using COc1ccc2c(=O)n(C)c(CBr)c(-c3ccccc3)c2c1, CO to produce COCc1c(-c2ccccc2)c2cc(OC)ccc2c(=O)n1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.