Using NC1CN(C(=O)c2ccc(F)c(F)c2Nc2ccc(I)cc2F)C1, O=C(O)CBr to produce O=C(CBr)NC1CN(C(=O)c2ccc(F)c(F)c2Nc2ccc(I)cc2F)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.