Using OCc1cccc(Br)n1, CCCc1c(O)ccc(C(C)=O)c1O to produce CCCc1c(OCc2cccc(Br)n2)ccc(C(C)=O)c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.