Using BrCCCc1ccc(CCCBr)cc1, CCOC(=O)CC(=O)OCC to produce CCOC(=O)C(CCCc1ccc(CCCC(C(=O)OCC)C(=O)OCC)cc1)C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.