4-((4-Ethyl-2,6-difluorophenyl)ethynyl)-4'-propyl-1,1'-biphenyl
4-((4-Butyl-2,6-difluorophenyl)ethynyl)-4'-propyl-1,1'-biphenyl
4-[2-(2,6-Difluoro-4-pentylphenyl)ethynyl]-4'-propyl-1,1'-biphenyl
4-((2,6-Difluoro-4-propylphenyl)ethynyl)-4'-ethyl-1,1'-biphenyl
4-Butyl-4'-((2,6-difluoro-4-propylphenyl)ethynyl)-1,1'-biphenyl
