Using CCCc1ccccc1OCCCCCCCBr, CCOC(=O)c1cc(=O)c2cccc(O)c2o1 to produce CCCc1ccccc1OCCCCCCCOc1cccc2c(=O)cc(C(=O)OCC)oc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.