Using Oc1cccc(CCc2cc(-c3ccccc3)n(-c3ccccc3)n2)c1, COC(=O)CBr to produce COC(=O)COc1cccc(CCc2cc(-c3ccccc3)n(-c3ccccc3)n2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.