Using BrCCCBr, CCOC(=O)c1ccc(-c2ccc(O)c(-c3ccc4c(c3)C(C)(C)CCC4(C)C)c2)cc1 to produce CCOC(=O)c1ccc(-c2ccc(OCCCBr)c(-c3ccc4c(c3)C(C)(C)CCC4(C)C)c2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.