Using CC1(C)CCC(C)(C)c2cc(Br)c(O)cc21, COCCOCCl to produce COCCOCOc1cc2c(cc1Br)C(C)(C)CCC2(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.