Using O=Cc1ccc(OC(F)(F)F)cc1, O=C(NC1CC1)c1cccc(C2=CCNCC2)n1 to produce O=C(NC1CC1)c1cccc(C2=CCN(Cc3ccc(OC(F)(F)F)cc3)CC2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.