butan-2-yl 4-methylbenzenesulfonate

1-carbazol-9-yl-2,2,2-trifluoroethanone

咔唑

Ethanone, 2,2,2-trifluoro-1-(9-methyl-9H-carbazol-3-yl)-

9-methyl-3-[2,2,2-trifluoro-1-(9-methylcarbazol-3-yl)ethyl]carbazole