Using O=C=Nc1ccc(F)cc1F, CCCCCCCCCCCCn1nnnc1Cc1ccccc1 to produce CCCCCCCCCCCCn1nnnc1C(C(=O)Nc1ccc(F)cc1F)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.