Using BrC(Br)(Br)Br, OCCn1cc2c(n1)CCc1c-2sc2ncnc(Nc3ccc(F)c(Cl)c3)c12 to produce Fc1ccc(Nc2ncnc3sc4c(c23)CCc2nn(CCBr)cc2-4)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.