Using O=C1CCc2c(cc(Br)nc2-c2ccc(F)cc2Cl)N1c1c(Cl)cccc1Cl to produce O=c1ccc2c(-c3ccc(F)cc3Cl)nc(Br)cc2n1-c1c(Cl)cccc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.