Using O=C(O)c1cccnc1CCCCc1cccc(C(F)(F)F)c1, NCc1cccs1 to produce O=C(NCc1cccs1)c1cccnc1CCCCc1cccc(C(F)(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.