Using Nc1nccc(C2(O)CNC2)n1, O=C(O)c1ccc(F)c(F)c1Nc1ccc(I)cc1F to produce Nc1nccc(C2(O)CN(C(=O)c3ccc(F)c(F)c3Nc3ccc(I)cc3F)C2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.