Using Cc1c(Oc2ccc(S(C)(=O)=O)cc2F)ncnc1OC1CCNCC1, CCC(=O)CBr to produce CCC(=O)CN1CCC(Oc2ncnc(Oc3ccc(S(C)(=O)=O)cc3F)c2C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.