Using O=C(Nc1ccn(Cc2c(O)cccc2Cl)n1)c1c(F)cccc1F, BrCC1CCC1 to produce O=C(Nc1ccn(Cc2c(Cl)cccc2OCC2CCC2)n1)c1c(F)cccc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.