Using COCCBr, Cc1nc(-c2ccc3ncc(C(=O)Nc4cc(-c5noc(C6CC(F)(F)C6)n5)ccc4C)n3c2)n[nH]1 to produce COCCn1nc(-c2ccc3ncc(C(=O)Nc4cc(-c5noc(C6CC(F)(F)C6)n5)ccc4C)n3c2)nc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.