Using Cc1onc(C2CCCCC2)c1-c1ccnc(Nc2cccc(O)c2)n1, OCCBr to produce Cc1onc(C2CCCCC2)c1-c1ccnc(Nc2cccc(OCCBr)c2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.