Using COC(Cc1cccc2[nH]c(=O)[nH]c12)OC, BrCc1ccccc1 to produce COC(Cc1cccc2c1[nH]c(=O)n2Cc1ccccc1)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.