Using O=C(N1CC[C@H](NCc2ccccc2)[C@H](OCC(F)F)C1)C(F)(F)F to produce N[C@H]1CCN(C(=O)C(F)(F)F)C[C@H]1OCC(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.