Using CCCCCOc1c(OC)ccc(C(=O)O)c1Br, CCOC(=O)CC(=O)OCC to produce CCCCCOc1c(OC)ccc(C(=O)O)c1C(C(=O)OCC)C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.