Pyridine,4-[4'-[2-[3,5-dimethyl-5'-[4-(4-piperidinyloxy)phenyl][2,2'-bithiophen]-4-yl]-3,3,4,4,5,5-hexafluoro-1-cyclopenten-1-yl]-3',5'-dimethyl[2,2'-bithiophen]-5-yl]-