Using O=C(O)c1nccc(Sc2cnc(Nc3ccccn3)s2)c1F, CCCC(O)(CN)c1ccccc1 to produce CCCC(O)(CNC(=O)c1nccc(Sc2cnc(Nc3ccccn3)s2)c1F)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.