Using COCCBr, Cc1cc(Nc2cc3cc(O)ccc3c(-c3ccc(F)cc3F)n2)n[nH]1 to produce COCCOc1ccc2c(-c3ccc(F)cc3F)nc(Nc3cc(C)[nH]n3)cc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.