Using Fc1ccc(OCCBr)cc1, ON=C(Cc1cccnc1)c1ccc(Cl)cc1Cl to produce Fc1ccc(OCCON=C(Cc2cccnc2)c2ccc(Cl)cc2Cl)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.