Using Cc1oc2cc(Oc3ccnc4cc(O)ccc34)ccc2c1C(=O)NC1CC1, BrCCBr to produce Cc1oc2cc(Oc3ccnc4cc(OCCBr)ccc34)ccc2c1C(=O)NC1CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.