Using COc1ccc(Cn2cc(-c3cc(Cc4ccc(F)cc4)[nH]n3)nn2)cc1, CC(C)(C)OC(=O)CBr to produce COc1ccc(Cn2cc(-c3cc(Cc4ccc(F)cc4)n(CC(=O)OC(C)(C)C)n3)nn2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.