Using CCCC1(Br)Cc2c3c(c(C)c(C)c2C1=O)OC(C(=O)O)C3 to produce CCCC1=Cc2c3c(c(C)c(C)c2C1=O)OC(C(=O)O)C3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.