Using COc1ccc(C(=O)c2c(CBr)n(C(C)=O)c(=O)n2C(C)=O)cc1, CO to produce COCc1[nH]c(=O)[nH]c1C(=O)c1ccc(OC)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.