Using O=C(NCCCCN1C2CCC1CN(c1ccc(Cl)cc1)C2)C(F)(F)F to produce NCCCCN1C2CCC1CN(c1ccc(Cl)cc1)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.