Using CCOC(=O)C(=O)CBr, Nc1cc(-c2ccccc2)c2ccc(I)cc2n1 to produce CCOC(=O)c1cn2c(cc(-c3ccccc3)c3ccc(I)cc32)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.