Using O=Cc1ccc2n1-c1ccc(Cl)cc1OC21CCN(C(=O)C(F)(F)F)CC1 to produce O=Cc1ccc2n1-c1ccc(Cl)cc1OC21CCNCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.