Using O=C(NC1CCN(Cc2ccccc2)[C@H](Cc2ccccc2)C1)C(F)(F)F to produce O=C(NC1CCN[C@H](Cc2ccccc2)C1)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.