Using COc1cc(OC)c2c(=O)[nH]c(-c3ccc(OCCO)cc3)nc2c1, BrC(Br)(Br)Br to produce COc1cc(OC)c2c(=O)[nH]c(-c3ccc(OCCBr)cc3)nc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.