Using O=C(NCCCN1C2C=C(c3ccc(Cl)cc3)CC1CC2)C(F)(F)F to produce NCCCN1C2C=C(c3ccc(Cl)cc3)CC1CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.